Question

1. Name and differentiate between two types of Endoplasmic Reticulum.

2. Write one function of ribosome.

3. What is membrane biogenesis?

4. Why RER membrane is rough in nature?​

Answer 1

Answer:

1. Endoplasmic reticulum is a membranous network enclosing a fluid-filled lumen. The two types of endoplamic reticulum are Rough Endoplasmic Reticulum (RER) and Smooth Endoplasmic Reticulum. ... RER has ribosomes attached to its surface. The ribosomes take part in protein synthesis.

2Ribosomes are minute particles consisting of RNA and associated proteins that function to synthesize proteins. Proteins are needed for many cellular functions such as repairing damage or directing chemical processes. Ribosomes can be found floating within the cytoplasm or attached to the endoplasmic reticulum.

3Membrane biogenesis, the synthesis of specific molecular components and their assembly into cellular membranes, is a critical, major activity in which cells engage throughout their existence.

4. This is an extensive organelle composed of greatly convoluted but flattish sealed sacs, which are contiguous with the nuclear membrane. It is called 'rough' endoplasmic reticulum because it is studded on its outer surface (the surface in contact with the cytosol) with ribosomes.

Explanation:

i think it may help you

Answer 2

Answer:

1. smooth er doesn't contain ribosomes but rough er has ribosomes
2. protein synthesis

3.

4.because of ribosomes

Explanation:

please mark as brainliest if it helps you