Explain the difference between cytoplasmic membrane, cytoplasm and nucleus?
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Answer:
The cell membrane surrounds the cytoplasm. The cell membrane is made of a phospholipid bilayer that is only 7 nm thick. ... Cytoplasm is where all the metabolic reactions of the cell take place in organelles, eg, respiration takes place in the mitrochondria (an organelle in the cytoplasm
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cytoplasmic membrane:
• its also called the cell membrane or plasma membrane, it covers the cell.
• It is a bilayer with lipid molecules, it is only 7 nm (nanometre) thick
• It has phosolipids, cholesterol and some other proteins synthesized by ribosomes in RER.
• A place where all metabolic reactions of a cell take place
• It is an SPM (Semi-permeable Membrane)
• processes like osmosis happen trough this layer
• It helps in transport of materials in and out of cell
• It protects the cell
• It binds the cell together
• it is renewed by the process of membrane biogenesis.
• Outermost covering of animal cell.
Cytoplasm:
• The part of cell which occurs between nucleus and cell membrane
• It is a semi solid/ fluid and partially base material of a cell.
• All the cell organelles are embedded in it along with other substances like toxic substances, food waste etc.
• It mainly consists of water, making it a bit of fluid.
• It's the aqueous ground substance called cytosol, it is a true solution.
• Its inner granular mass is called endoplasm and clearer layer is caller cell cortex / ectoplasm.
•It has no shape, without it the cell with dry up and eventually die
• It binds the cell organelles into one single portion.
• Living cytoplasm is always in the state of movement
• It contains nucleus
• It is the most abundant in animal cells
Nucleus:
• Large centrally located spherical cellular component
• It controls the cell
• It consists of Hereditary information of an organism (In chromosomes which have DNA which has this information) and nucleolus embedded in the nucleoplasm
• It has a membrane called nuclear membrane, it also had a nuclear envelop directly connected to Endoplasmic reticulum which helps in transportation of commands given by the nucleus to the organelle.
• Nucleolus is rich in protein and RNA and is a site for making Ribonucleic Acid too
• This cell organelle has a double membrane and the nuclear envelop has manypores called nucleopores.
• Nucleolus is the factory of ribosomes
• It is very essential for a cell, but there are some cells which lack this nucleus, like an RBC in human blood.
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