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Cell Organelles. Centrioles. A pair of small cylindrical structure Composed of microtubules Involved in the separation of chromosomes during cell division in animal cells and protists Not found in plant cell. Chloroplast. Definition. Image . Found in some plant cells (green organelle)
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Centrioles A pair of small cylindrical structure Composed of microtubules Involved in the separation of chromosomes during cell division in animal cells and protists Not found in plant cell
Chloroplast Definition Image • Found in some plant cells (green organelle) • Photosynthesis takes place • Composed of many folded layers of membrane
Cytoplasm • the contents of a cell • It is more than 90% water • Contain ions, salts enzymes, food molecule and other organelles other than the nucleus.
Cytosol • The fluid component of cytoplasm • In which organelles are located
Endoplasmic Reticulum Image • It is where, where most reactions takes place • The cell makes lipids and other chemicals, • it sometimes has ribosomes attached. • Involved with the production , processing, transport, and storage of materials with the cell
Golgi Apparatus image • essential in packaging different products from the endoplasmic reticulum and the ribosomes into their final form.
Lysosomes Image • membrane- bound vesicles • Containing powerful enzymes that breakdown debris and foreign material • Found in most animal cell
Mitochondria Image • Composed of many unfolded layers of membrane • Involved in the energy transformation that release energy
Nucleus Image • Large organelle • The nucleus is the control centre of the cell • dictates what all of the other organelles do. • The nucleus also stores the DNA.
Image PlasmaMembrane • Encloses the cytoplasm in all cells • Controls the movement of substances into and out of the cell • Responsible for recognition, adhesion and chemical communication between cells
Plastids • Found only in plant cells • Which develop from simple organelles called proplast • Plastids include chloroplast, amyloplasts & chromplast(contain colour pigments)
Image Ribosomes • The nucleus is the control centre of the cell • dictates what all of the other organelles do. • The nucleus also stores the DNA Definition
Tonoplast Image • Vacuole membrane in plant cells • Regulates the movement of substances into and out of the vacuole.
Vacuole • found in most cells • Plant cells: have large fluid filled vacuole • Containing cell sap which support physical support through turgidity and storage • In other cells vacuole maybe involved in intracellular digestion or water balance
Vesicles • Membrane –bound organelles • Often associated with transport in cell
Cell wall • Found only in PLANT cells • Gives support to the cell • Is a second layer or “fence” like the cell membrane.
Cytoskeleton Location: All cells Description: Made of microtubules - microfilaments Function: Strengthen cell & maintains the shape Moves organelles within the cell By Shekofa Jafari 11C