Question

How many types of ER is present ? Tell functions also .


class 9th
please answer it's urgent ​

Answer 1

There are two types of chromosomes present in cell.

1.) Rough endoplasmic recticulum

2)Smooth endoplasmic recticulum

*Rough endoplasmic have 60's ribosomes present on its surface and it helps in the synthesis of protein

*Smooth endoplasmic recticulum helps in synthesise of lipids and streoid

Answer 2

Question

How many types of Endoplasmic Reticulum is present in a cell? State their functions.

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Answer

There are two types of endoplasmic reticulum present in a cell. They are -:

• Rough Endoplasmic Reticulum → They have ribosomes attached on the surface and hence are called rough endoplasmic reticulum.
• Smooth Endoplasmic Reticulum → They don't have ribosomes attached on the surface and hence are called smooth endoplasmic reticulum.

Functions of each type -:

1. Smooth Endoplasmic Reticulum →

• They help in the synthesis of necessary lipids and are also responsible for the production and secretion of some hormones.
• They also help in the metabolism of carbohydrates and store and release calcium ions that are important for the nervous and muscular system.

2. Rough Endoplasmic Reticulum →

• Most functions of its function are associated with protein synthesis and they play an essential role in protein folding.
• They also help in protein sorting.

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