the giant Amoeba, Chaos chaos contains 50,000; the egg of sea urchin contains 140,000 to 150,000. premium. Cell Wall: This rigid outer covering of the cell protects the plant cell and gives it shape. us / ˌɔr·ɡəˈnel / Add to word list biology any of the parts inside a living cell that have a particular purpose, such as a nucleus (= central part) or a chloroplast (= part in a plant cell) (Definition of organelle from the Cambridge Academic Content Dictionary © Cambridge University Press) Examples of organelle organelle pronunciation. 01. If the whole body or organism is composed of a collection of organ systems, then what are organ systems composed of? Organs. Let's start with the definition of cell organelles. Exocytosis can be constitutive (occurring all the time) or regulated. Scientists aren't quite sure how many cells are in the human body (there are far too many to count), but a recent estimation has suggested that the average person has 37,000,000,000,000 cells. Rate the pronunciation struggling of Fraaye. [1] Basal cells in the basal layer ( stratum basale) of the skin are sometimes referred to as basal keratinocytes. Some references are strict in their definition of an organelle. Here are 4 tips that should help you perfect your pronunciation of 'organelles':. The organelles and cytosol, taken together, compose the cell’s cytoplasm. e. 8. amirira pronunciation with translations, sentences, synonyms, meanings, antonyms, and more. In cell biology, an organelle is a part of a cell that does a specific job. cell organelle - a specialized part of a cell; analogous to an organ; "the first organelle to be identified was the nucleus" cell organ, organelle. A chloroplast is an organelle within the cells of plants and certain algae that is the site of photosynthesis, which is the process by which energy from the Sun is converted into chemical energy for growth. Found only in plant cells. organelle translations: organel. May 1st, 2018 - Define organelle organelle synonyms organelle pronunciation organelle translation English dictionary definition of organelle n A differentiated structure within a cell such as a mitochondrion vacuole or chloroplast that performs a specific function n a structural and Animal Cells and the Membrane Bound Nucleusenzyme, a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process. Common Types of Cell Organelles. Organelles are specialised membrane-bound regions primarily in eukaryotic cells. Plant cells are the basic unit of life in organisms of the kingdom Plantae. Such as English to Tamil. . Organelles. In eukaryotes, organelles are enclosed by a membrane. 239 views 2 years ago. A large number of membraneless organelles, including nucleoli, Cajal bodies, P-bodies, and stress granules, exist as liquid droplets within the cell and arise from the condensation of cellular material in a process termed. Supports and strengthens cell. This protects the rest of the cell from the digestive enzymes inside the membrane. organelles pronunciation with translations, sentences, synonyms, meanings, antonyms, and more. Found in plant cells. Neurons Lesson for Kids 3:25. Lysosomes function as the digestive system of the cell, serving both to degrade material taken up from outside the cell and to digest obsolete. There are various cell organelles, out of which, some are common in most types of cells like cell membranes, nucleus, and cytoplasm. . Listen to the audio pronunciation in English. Cells are grouped into two different. Since organelle genomes and the genes that they encode are so similar to those of bacteria, the prevailing theory is that these organelles arose by symbiosis. : a specialized cellular part (such as a mitochondrion, chloroplast, or nucleus) that has a specific function and is considered. Here are 4 tips that should help you perfect your pronunciation of 'organelle':. Learn more in the Cambridge English-Italian Dictionary. organelles pronunciation. 0:05 Definition of an Organelle; 0:30 Organelles and Their Functions; 6:03 How Plant Cells Are Different; 6:19 Plant Organelles; 7:51 Lesson Summary; Save Timeline Autoplay Autoplay. 2. Pronunciation of Cell organelles with 2 audio pronunciations and more for Cell organelles. You can think of cell organelles as a cell’s internal organs. Osteocytes derive from osteoblasts, or bone-forming cells, and are essentially osteoblasts surrounded by the products they secreted. 4K subscribers. All Free. See examples of ORGANELLE used in a sentence. organelle. organite, organelle, Organite are the top translations of "organelle" into French. US English. Samantha. Top 20 Mispronounced Words; Medical Terms; Words A-I. Among such organelles are the mitochondria, which are the sites. Sample translated sentence: The second type are larger (>0. This organelle is typically located in the left part of the cell ( Fig. Supports and strengthens cell. The contractile vacuole of protozoans, for example, Organelles are specialized structures that perform various jobs inside cells . Every single species is composed of a cell and it includes both single-celled. ): organ (a fully differentiated structural and functional unit in an animal that is specialized for some particular function). It also filters the molecules passing in and out of it. Ocellus aka ocelloid: This organelle occurs in the Warnowiaceae and consists of a hyalosome, a dorsally pigmented melanosome, and an ocelloid chamber. [1] Most of the cell's organelles are in the cytoplasm. organelle ý nghĩa, định nghĩa, organelle là gì: 1. How To Pronounce Organelle - Pronunciation Academy Pronunciation Academy 221K subscribers Subscribe 115 16K views 7 years ago Learn how to pronounce Organelle This is. Cells The Inside Story CMSE. . They are eukaryotic cells. Organelles Without layer: The Cell wall, Ribosomes, and Cytoskeleton are non-membrane cell organelles. . The formation of the cell wall is guided by microtubules. Tìm hiểu thêm. Pronunciation of extateex. Cytoplasm contains molecules such as enzymes which are responsible for breaking down waste and also aid in metabolic activity. Cell Organelles 10 Day Lesson Plan Ribosome Cell Biology. Sometimes I've seen the pronunciation of this as cristae, cristae or cristae, that's plural for crista. This video shows you how to pronounce ProkaryoticOrganelles and Their Functions. An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. The four primary types of locomotory organelles in protozoa are cilia, flagella, pseudopodia, and undulating membranes. Saber más. Cytoskeleton. 6. Some types of Gaucher disease can lead to severe brain damage and death. Organelles. Organelle, any of the specialized structures within a cell that perform a specific function (e. For example, the nucleus is the cell’s brain, and the mitochondria are the cell’s hearts. A chloroplast is an organelle within the cells of plants and certain algae that is the site of photosynthesis, which is the process by which energy from the Sun is converted into chemical energy for growth. g. The Golgi apparatus is comprised of a series of flattened sacs that extend from. Contains proteins, salts, carbohydrates, and water. Flagella. Organelles in Cells Definition amp Functions Video. outer layer of plant cells that provides supports and structure. 4 ). . Eukaryotic cells organize their intracellular components into organelles that can be membrane-bound or membraneless. Organelle literally translates to “little organs. Organelles contribute to form a cell. Look through examples of organelles translation in sentences, listen to pronunciation and learn grammar. osteocyte, a cell that lies within the substance of fully formed bone. Select Speaker Voice. Organs collectively form organ systems. Prabubuntoro . An organelle is one small part of a cell that has a very specific function or job. gənˈel/ US /ˌɔːr. mitochondria, Golgi apparatus, centrioles, granular and agranular endoplasmic reticulum, vacuoles, microsomes, lysosomes, plasma membrane and fibrils ( Table 1 ) Table 1: Cell organelles Structure Characteristic Cell membrane Bimolecular lipid and protein membrane that surrounds the cell •. groups of tissues that perform a particular job in an organism. Definition and meaning can be found here: main difference between organ and organelle is that organ is a large part of an organism, composed of tissues which perform similar functions whereas organelle is a specialized structure found. cell organelle: ( or'găn-el ), One of the specialized parts of a protozoan or tissue cell; these subcellular units include mitochondria, the Golgi apparatus, nucleus and centrioles, granular and agranular endoplasmic reticulum, vacuoles, microsomes, lysosomes, plasma membrane, and certain fibrils, as well as plastids of plant cells. 3 /5. Cell Organelles 10 Day Lesson Plan Ribosome Cell Biology. How to properly pronounce organelle? organelle Pronunciation ˌɔr gəˈnɛl, ˈɔr gəˌnɛl or·ganelle Here are all the possible pronunciations of the word organelle. In cell biology, an organelle is a part of a cell that does a specific job. When words sound different in isolation vs. any of the parts inside a living cell that have a particular purpose, such as a nucleus (= central part) or a chloroplast (= part in a plant cell) (Definition of organelle from the. Select Speaker Voice. Unlike prokaryotic cells, eukaryotic cells have: (1) a membrane-bound nucleus; (2) numerous membrane-bound organelles —such as the endoplasmic reticulum, Golgi apparatus, chloroplasts, mitochondria, and others; and (3) several, rod-shaped chromosomes. Here is a list of some common cell organelles and a brief explanation of their functions: 1. Select Speaker Voice. Plant cell, fungal cell or. Learn MORE CONFUSING NAMES/WORDS:. Functionally, most bacterial. Biology definition: Archaea are unicellular prokaryotes that comprise the domain of the same name, Archaea. 1 2 3 4 5 6 7 8 9 Share No views 10 minutes ago #LearnEnglish #PronunciationGuide #Organelle Unlock the correct pronunciation of "organelle" with our comprehensive guide! Whether you're. You'll be able to mark your mistakes quite easily. A lysosome ( / ˈlaɪsəˌsoʊm /) is a membrane-bound organelle found in many animal cells. Lysosome. Freely permeable layer surrounding cell membrane. AboutTranscript. ; Record yourself saying 'organelle' in full sentences, then watch yourself and listen. Learn more in the Cambridge English-Chinese traditional Dictionary. See organelles meaning in Hindi, organelles definition, translation and meaning of organelles in Hindi. Most of the cell's organelles are in the cytoplasm. Share. They're one of two major classifications of cells – eukaryotic and prokaryotic. 1 5. Context example: the first organelle to be identified was the nucleus. The term was first used by Scott and Still in 1968 after they realized that the glycogen in the cell was not static but rather a dynamic molecule. Both of them being prokaryotic life forms lack nuclei and membrane-bound cell organelles. For full treatment, see. The symbiotic theory proposes that the complex eukaryotic cell arose by a series of symbiotic events in which organisms of different lineages merged. The Golgi apparatus is an organelle in eukaryotic organisms that moves molecules from the endoplasmic reticulum to their destination. [2] [3] The name organelle comes from the idea that these structures are to cells what an organ is to the body . Plant cells have special organelles called chloroplasts, which create sugars via photosynthesis. Organelles are membrane-bound compartments found inside of eukaryotic cells in the cytoplasm. Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers— proteins, nucleic acids, carbohydrates, and lipids. . It helps to fill out the cell and keeps organelles. 6. eukaryote, any cell or organism that possesses a clearly defined nucleus. a pocket of embryonic tissue that is the beginning of an organ. 7 μm), contain both actin and microtubules and can carry components of the cytoplasm between cells, such as vesicles and organelles. ): organ (a fully differentiated structural and functional unit in an animal that is specialized for some particular function). Definition and meaning can be found here:to say Virchow? Learn the pronounciation Virchow! How to Pronounce Virchow. Large plants and animals have many billions of cells. The formation of the cell wall is guided by microtubules. 2. Check 'organelles' translations into Tamil. An organelle is a biological structure that performs a distinctive function inside a cell. Press and start speaking. any structure, such as a nucleus or a chloroplast, that has a particular purpose inside a living…. mitochondria, Golgi apparatus, centrioles, granular and agranular endoplasmic reticulum, vacuoles, microsomes, lysosomes, plasma membrane and fibrils ( Table 1 ) Table 1: Cell organelles Structure Characteristic Cell membrane Bimolecular lipid and protein membrane that surrounds the. Organelles are entities within a eukaryotic cell that have a specialised function. Lesson Cell Organelle Children s Book. Most of the cell's organelles are in the cytoplasm. The glycosome is a membrane-enclosed organelle that contains the glycolytic enzymes. Commonly used organelles include lysosome, chloroplast and mitochondria. Organelles are embedded within the cytoplasm of eukaryotic and prokaryotic cells. g. The cell wall of plant cells is made from cellulose. See examples of ORGANELLE used in a sentence. Cell membrane. The nucleus stores DNA and controls cell functions. During the 20th century, electron microscopy and subcellular fractionation enabled the discovery of additional organelles and, together with radiolabelling, allowed. . Press and start speaking. The nucleus itself is an organelle . It would take several years before organulum, or the later term organelle, became accepted and expanded in meaning to include subcellular structures in multicellular organisms. What is an organelle? An organelle is a subcellular structure like an organ in the body that has one or more distinct duties to do in the cell. Organelles are dynamic, changing size and shape to maintain homeostasis and adjusting to the various needs of the cell. Eukaryotic cells also contain organelles, including mitochondria (cellular energy. They are eukaryotic cells, meaning that they have a true nucleus and specialized structures called organelles that carry out different functions. 98. Because they contain no DNA or ribosomes, however, they have to import their proteins from the cytosol. 78. 1: Ribosomal subunit. ”. 78. An organelle is a structure within the cytoplasm of a eukaryotic cell that is enclosed within a membrane and performs a specific job. Organelles are specialised membrane-bound regions primarily in eukaryotic cells. These characteristic distributions depend on interactions of the organelles with the cytoskeleton. See examples of ORGANELLE used in a sentence. Peroxisomes play a key role in the oxidation of specific biomolecules. An organelle (think of it as a cell’s internal organ) is a membrane bound structure found within a cell. Learn how to pronounce the homophones JEANS and GENES with this quick English Speaking Pronunciation lesson. Alleles are a pair of genes that occupy a specific location on a particular chromosome and control the same trait. This video shows you How to Pronounce Organelles, pronunciation guide. This video shows you how to pronounce SpecialisedThis video shows you how to pronounce KinesinEvery organism, or living thing , is made up of structures called cells. US English. Learn and practice the pronunciation of organelles. An organelle that protrudes outward from the cell body. Cells. It is held together to the cytoplasm with the. You'll be able to mark your mistakes quite easily. ribosomes, vacuoles ). Cells are grouped into two different. NCI's Dictionary of Cancer Terms provides easy-to-understand definitions for words and phrases related to cancer and medicine. Unlike the eukaryotic nucleus (which is surrounded by a nuclear envelope) the nucleoid is. Organelles are embedded within the cytoplasm of eukaryotic and. As the body is composed of various organs, the cell, too, has “little organs” that perform special functions. 1-15 micrometers; Shape range: Spherical, rod-like, spiral, plates, irregularly shaped, lobed, needle-like filamentous,. It is a tiny cellular structure, performing a specific function in the body. organelles: specialized intracellular structures; e. organelle - WordReference English dictionary, questions, discussion and forums. cytosol: [noun] the fluid portion of the cytoplasm exclusive of organelles and membranes — called also#R##N# ground substance. Organelles act like mini-organs, each carrying out a different role in the cell, but all working. gənˈel/ More about phonetic symbols Sound-by-sound pronunciation UK /ˌɔː. Organelles are considered either membranous or non-membranous. Lysosomes break down waste and debris. However, they also contain some subcellular structures that are absent in animal cells, such as chloroplasts, a vacuole, and a cell wall. Centrosome. The study of cells is. Organelle Functions in Current. The meaning of AUTOPHAGY is the biological process that involves the enzymatic breakdown of a cell's cytoplasm or cytoplasmic components (such as damaged or unneeded organelles or proteins) within the lysosomes of the same cell. Organelle definition of organelle by The Free Dictionary. Fred. This fundamental feature is not exclusive. Energy-Producing Organelles. Other changes happen in response to challenges or stress and reflect a modification in organelle function, such as a change in protein. You'll be able to mark your mistakes quite easily. ORGANELLE definition: a structural and functional unit, such as a mitochondrion , in a cell or unicellular. ) are surrounded by a phospholipid bilayer (membrane). Cells For Kids Science Book For Children Nishi Singh. Books around 1900 from Valentin Häcker (1899), Edmund Wilson (1900), and Oscar Hertwig. The type of locomotion used by a protozoan is dependent on factors such as the environment, the presence or absence of. organelles. But to entitle ribosomes as organelles reaches out to far. How to say Organelle in English? Pronunciation of Organelle with 3 audio pronunciations, 1 synonym, 1 meaning, 11 translations, 1 sentence and more for Organelle. Break 'organelle' down into sounds: [AW] + [GUH] + [NEL] - say it out loud and exaggerate the sounds until you can consistently produce them. Si has llegado a esta página seguramente sea porque estés buscando los mejores cuadernos para niños en PDF. Mitochondria also store calcium for cell signaling activities, generate heat, and mediate cell growth and death. This is the American English pronunciation of organelle. Organelles in animal cells include the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus. An organelle is a structure surrounded by two lipid bilayers. Most of the time, being delimited by a membrane seems to be a requirement to consider a cellular structure an organelle. The nucleus itself is an organelle. Pronunciation GuideOrganelles functions labeled plastid plastids cytoplasm microbenotes. . foundation. Lysosomes break down waste and debris. Cytoplasm is responsible for giving a cell its shape. The name organelle comes from the idea that these structures are parts of cells, as organs are to the body, hence organelle, the suffix -elle being a diminutive. Eukaryotic cells include animal cells – including human cells – plant cells, fungal cells and algae. a discrete structure within a cell, as a chloroplast or centriole, characterized by having specialized functions, a usually distinctive chemical composition, and an identifying molecular structure. Learn how to say Innervate with EmmaSaying free pronunciation tutorials. (Chloroplast DNA, NCI Thesaurus) One of two small cylindrical cell organelles composed of 9 triplet microtubules. . Organelle pronunciation | How to pronounce Organelle in English?/,ɔːrgə`nel/Meaning of Organelle | What is Organelle?(noun) a specialized part of a cell; ana. Definition. Leigh syndrome (also called Leigh disease and subacute necrotizing encephalomyelopathy) is an inherited neurometabolic disorder that affects the central nervous system. . Break 'organelle' down into sounds: [AW] + [GUH] + [NEL] - say it out loud and exaggerate the sounds until you can consistently produce them. g. 1: Ribosomal subunit. Learn more in the Cambridge English-Chinese traditional Dictionary. 5 /5. In cell biology, an organelle is a part of a cell that does a specific job. Allele Definition. Victoria. 1-15 micrometers; Shape range: Spherical, rod-like, spiral, plates, irregularly shaped, lobed, needle-like filamentous,. lysosome: [noun] a saclike cellular organelle that contains various hydrolytic enzymes — see cell illustration. PronunciationAcademy is the world's biggest and most accurate source. The cell has mitochondria. Words beginning with AHow to say organelles in Italian? Pronunciation of organelles with 1 audio pronunciation and more for organelles. Each lysosome is surrounded by a membrane that maintains an acidic environment within the interior via a proton pump. American definition and synonyms of organelle from the online English dictionary from Macmillan Education. The cytosol plays a role in eukaryote metabolism. ↔. Difficult (1 votes) Spell and check your pronunciation of extateex. The endosymbiotic gene transfer and nuclear-encoded proteins in the organellar metabolism seem to define. It also filters the molecules passing in and out of it. As a group they have the ability to ingest not only other cells but also many other microscopic particles. The 13 organelles and their functions are: 1. Organelles are involved in many vital cell functions. Plasma membrane - separates the cell from the environment. ; Record yourself saying 'organelles' in full sentences, then watch yourself and listen. Red Blood Cells Lesson for Kids 2:54. Here are 4 tips that should help you perfect your pronunciation of 'organelle': Break 'organelle' down into sounds : [AW] + [GUH] + [NEL] - say it out loud and exaggerate the sounds until you can consistently produce them. Organelle literally means 'little organ', and like organs, organelles perform specific functions for the cell. noun. Break 'organelles' down into sounds: say it out loud and exaggerate the sounds until you can consistently produce them. . Select Speaker Voice. They are separated from the rest of the cell by a lipid bilayer. C. This video shows you how to pronounce ClathrinFigure 5. Most plasma membranes are about 50 percent protein by weight, while the membranes of some metabolically active organelles are 75 percent protein. [1] They are spherical vesicles that contain hydrolytic enzymes that can break down many kinds of biomolecules. Listen free audio with natural accents. It causes bone pain, anemia, enlarged organs, a swollen, painful belly, and bruising and bleeding problems. Size range: 0. In general, they are membrane-bound compartments or structures of a cell. [2] [3] The name organelle comes from the idea that these structures are to cells what an organ is to the body . Use this free pronunciation guide to pr. Cell Organelles Story Students receive a letter asking them to submit a manuscript for a new children s book about cell organelle Cell Organelle Children s Book Project Can you name the Organelles in an Animal Cell. organs. An Organelle is a specialized structure found inside cells that carry out a specific life process. Context example: the first organelle to be identified was the nucleus. An artificial organelle is a distinct functional subunit or sub-compartment of an artificial cell. They typically are round to oval in shape. The epidermis is the topmost layer of skin, and itself is comprised of five layers or as we call them, strata. Vromi . Browse the use examples 'Organelle' in the great English corpus. Julia. Ribosomes synthesize proteins. Last updated November 18, 2023. tissue. , mitochondria, ribosomes, endoplasmic reticulum). Learn how to say Organelles with EmmaSaying free pronunciation tutorials. Flagella and cilia are the locomotory organs in a eukaryotic cell. Definition: Organelle. Organelles from cells. ”. Definition and synonyms of organelle from the online English dictionary from Macmillan Education. Keratinocytes are the primary type of cell found in the epidermis, the outermost layer of the skin. They are eukaryotic cells, which have a true nucleus along with specialized structures called organelles that carry out different functions. Plant cells, like all eukaryotic cells, contain a nucleus and other organelles, each with its distinct functions. Organelle Definition. Moreover, cell organelles are of different types, such as Organelles without Membrane, Single Membrane-Bound Organelles, and Double Membrane-Bound Organelles. Cell Organelle Storybook by Gabriella Kikirov on Prezi. The membrane is made up of a phospholipid bilayer, and also contains proteins and carbohydrates. Molecules that pass muster with the cell membrane enter the cytoplasm, a mixture of macromolecules (such as proteins and RNA), small organic molecules (such as glucose), ions, and water. Have we pronounced this wrong? Teach everybody how you say it using the comments below!!Looking for help to learn English? Get exclusive deals on the best En. Mark. The meaning of ORGANELLE is a specialized cellular part (such as a mitochondrion, chloroplast, or nucleus) that has a specific function and is considered analogous to an organ. For example, the nucleus is the cell’s brain, and the mitochondria are the cell’s hearts. How to pronounce reliable & reliability. Figure 1: A diagram showing the basic structure of a eukaryotic cell and prokaryotic cell. Ribosomes are organelles responsible for protein synthesis, a process that every cell must undertake to ensure the survival of the organism, whatever its overall size, shape and function. Organelles, defined as intracellular membrane-bound structures in eukaryotic cells, were described from the early days of light microscopy and the development of cell theory in the 19th century. several, rod-shaped chromosomes. The nucleus is a cell’s central organelle. Because a eukaryotic cell’s nucleus is surrounded by a membrane, it is often said to have a “true nucleus. Vocabulary cell biology file Cell organelle match biology vocab cards matching flash key definitions organelles science game answer pdf games included Biology buzz words: cell structure and. Learn more in the Cambridge English-Malay Dictionary. The main difference between prokaryotes and eukaryotes is that eukaryotes contain membrane-bound organelles, and prokaryotes do not. Learn the definition of 'membrane-bounded organelle'. Here are 4 tips that should help you perfect your pronunciation of 'organelle':. The plant cell wall is also involved in protecting the cell against mechanical stress and providing form and structure to the cell. The cell wall of plant cells is made from cellulose. Ribosomes. Zira. See. Animal cells do not have plant-specific organelles like cell walls, which support the plant cell, or. The rest of the organelles stay suspended in the fluid above this sediment. Cell, in biology, the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed. Check 'organelle' translations into Chinese. Dilcey. [2] Keratinocytes form a barrier against environmental damage by heat, UV. Introduction. intracellular: [adjective] existing, occurring, or functioning within a cell. Golgi Apparatus. organelle translate: 細胞器官，胞器（細胞中諸如細胞核、葉綠體等細胞組織，有其特定功能）. Many microorganisms are eukaryotes, so a review of eukaryotic organelles is necessary. They are microscopic. Eukaryotic cells have the nucleus enclosed within the nuclear membrane. Stem. . The number of mitochondria varies from cell to cell some consist of a large number and even single e. In a way, so do cells. It is a network of membranous canaliculi, It extends through all parts of cytoplasm attached to the nuclear envelope and cell membrane, It forms an internal transferring system that benefits in transferring the substances from a part to another inside the cell, It transfers substances. The words are all pronounced J-long E-N-Z or /ʤ. intracellular: [adjective] existing, occurring, or functioning within a cell. 6. Organelles are small structures within the cytoplasm that carry out functions necessary to maintain homeostasis in the cell. It is an organelle that contains several other sub. Learn the definition of 'organelles'. Examples of organelles include the nucleus, the endoplasmic reticulum, the Golgi, mitochondria. An amoeba is a highly motile eukaryotic, unicellular organism. Cell Organelles. There are many different types of cell organelles, and their specific functions can vary depending on the type of cell. Each cell process is carried out in a specific location in the cell, with most processes occurring in or around an organelle. The revolutionary but widely accepted definition was proposed by Thomas Cavalier-Smith in 1985 : the organelle exported, by endosymbiotic gene transfer (EGT), its genes to the host nucleus and imports their products from the host. There are many types of organelles. They are macroscopic in structure. Artificial organelles serve to localize and spatially organize cellular components, separate competing chemical processes from each other, enhance the efficiency or specificity of chemical reactions, or perform other dedicated functions. Macrophages are constituents of the reticuloendothelial system. Membrane-enclosed organelles often have characteristic positions in the cytosol. 111.