Question

The cell wall in plant cells is mainly composed of ___

• A. ADP
• B. Lipids
• C. Ribosomes
• D. Starch

Answer 1

The correct option is (B):

Explanation of the correct option:

1. ​The cell wall in plant cells is mainly composed of cellulose.
   
2. It is a linear polymer of glucose which provides mechanical strength to plants.
   

Explanation of the incorrect options:

Option (A):

1. ​Lipids are the components of the cell membrane and not the cell well.
   
2. There is a bilayer of lipid forming the cell membrane.
   

Option (C):

1. Ribosomes are specific organelles in the cell which are present either in free state or bound with the endoplasmic reticulum.
   
2. Ribosome is responsible for performing protein synthesis.
   

Option (D):

1. ​Starch is one of the polysaccharides which act as stored food in plants.
   
2. Glucose produced during photosynthesis is converted to starch.
   

Final Answer: The cell wall in plant cells is mainly composed of cellulose.