Question

Cell organelles are the parts of a living cell. All cells have a cell membrane and some cells have a cell wall.
Which of the following has a cell wall?
I. Plants
II. Bacteria
III. Fungi

• A. I only
• B. II only
• C. I and II only
• D. II and III only
• E. I, II and III

Answer 1

The correct option is E I, II and III

• Cell wall is the outermost, rigid, protective, non-living and supportive layer found in plant cells, bacteria, fungi, and some protists but absent in animal cells.

1. Plants cell wall is made up of cellulose, hemicellulose, and pectin. Cellulose is a polymer of glucose and pectin is a polymer of galactouronic acid.

2. Bacterial cell wall is made up of protein lipid polysaccharide NAG (N-Acetyl Glucosamine) and NAM (N-Acetyl Muramic Acid).

3. Fungal cell wall is made up of chitin which is a polymer of glucosamine.

Hence all options are correct.

So, the correct answer is 'I, II and III'.