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Find the appropriate option which justif...

Find the appropriate option which justifies all these statements.
i. Protect the cell by acting a barrier.
ii. Regulates the transport of substances in and out of the cell.
iii. Receives chemical messengers from other cells.
iv. Acts as a receptor.
v. Cell mobility , secretions , and absorptions of substances.

A

The nuclear membrane

B

Endomembranous system

C

Plasma membrane

D

All of these

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze each statement and determine which option best fits all the criteria provided. ### Step-by-Step Solution: 1. **Understanding the Statements:** - **Statement i:** Protects the cell by acting as a barrier. - **Statement ii:** Regulates the transport of substances in and out of the cell. - **Statement iii:** Receives chemical messengers from other cells. - **Statement iv:** Acts as a receptor. - **Statement v:** Facilitates cell mobility, secretions, and absorption of substances. 2. **Evaluating the Options:** - **Option 1: Nuclear membrane** - This membrane surrounds the nucleus and does not fulfill all the criteria mentioned in the statements. - **Option 2: Endomembranous system** - This refers to a system of membranes within the cell, including the endoplasmic reticulum and Golgi apparatus, but it does not act as a barrier for the entire cell or receive chemical messengers. - **Option 3: Plasma membrane** - This is the outer membrane of the cell that fulfills all the statements: - It acts as a barrier (Statement i). - It regulates transport (Statement ii). - It receives chemical signals (Statement iii). - It acts as a receptor (Statement iv). - It is involved in cell mobility and secretion (Statement v). - **Option 4: All of these** - This cannot be correct since not all options fulfill the criteria. 3. **Conclusion:** - The only option that justifies all the statements is **Option 3: Plasma membrane**. ### Final Answer: **Option 3: Plasma membrane**
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