Question

(a) What is the function of the endoplasmic reticulum?
(b) Which type of endoplasmic reticulum is associated with ribosomes?
(c) What are ribosomes made up of?​

Answer 1

Answer:

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Explanation:

a) The endoplasmic reticulum (ER) is a large, dynamic structure that serves many roles in the cell including calcium storage, protein synthesis and lipid metabolism. The diverse functions of the ER are performed by distinct domains; consisting of tubules, sheets and the nuclear envelope.

b)ROUGH ENDOPLASMIC RETICULUM

Rough ER is found throughout the cell but the density is higher near the nucleus and the Golgi apparatus. Ribosomes on the rough endoplasmic reticulum are called 'membrane bound' and are responsible for the assembly of many proteins.

c) Ribosomes are often associated with the intracellular membranes that make up the rough endoplasmic reticulum. Ribosomes from bacteria, archaea and eukaryotes in the three-domain system resemble each other to a remarkable degree, evidence of a common origin.

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Answer 2

(a) ans

The endoplasmic reticulum (ER) is a large, dynamic structure that serves many roles in the cell including calcium storage, protein synthesis and lipid metabolism. The diverse functions of the ER are performed by distinct domains; consisting of tubules, sheets and the nuclear envelope.

(b) ans

ROUGH ENDOPLASMIC RETICULUM.

(c) ans

A ribosome is made out of RNA and proteins, and each ribosome consists of two separate RNA-protein complexes, known as the small and large subunits.

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