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Byju's Answer
Standard XII
Biology
tRNA
It is stated ...
Question
It is stated in our study package that- 'ribosomes on the plasma membrane make proteins that are transported out ' what is this protein use for ?
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Solution
secreted out as hormones etc.
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Proteins are synthesised by ribosomes present on
and modified and packaged in
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Select the correct statements.
(a) Endomembrane system includes plasma membrane, ER, Golgi complex, lysosomes and vacuoles.
(b) ER helps in transport of substances, synthesis of proteins, lipoproteins and glycogen.
(c) Ribosomes are involved in protein synthesis.
(d) Mitochondria help in oxidative phosphorylation and generation of ATP.
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A protein 'X' is produced by RER for plasma membrane formation. But it is observed that the protein in the membrane is slightly different from the protein made in the RER. It was probably modified in another cell organelle. Identify that organelle which modifies a protein produced in the cell.
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The RER in the cell synthesises a protein which would be later used in building the plasma membrane. But it is observed that the protein in the membrane is slightly different from the protein made in the RER. The protein was probably modified in another cell organelle. Identify that organelle.
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What is the percentage of intrinsic proteins in the total proteins of plasma membrane?
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