Question

multiple-choice question
what are cell walls made up of?
lipids such as the lipid bilayer
lipids called cellulose.
proteins called cellulose
carbohydrates and it is called cellulose

Explanation:

1. Analyze each option:

• Option 1: Lipid bilayer is part of the cell membrane, not cell wall. Eliminate.
• Option 2: Cellulose is a carbohydrate, not a lipid. Eliminate.
• Option 3: Cellulose is a carbohydrate, not a protein. Eliminate.
• Option 4: Plant cell walls are made of cellulose, which is a carbohydrate. This matches.

Answer:

D. Carbohydrates and it is called cellulose (assuming the last option is labeled D; if the original labels were different, adjust the identifier but keep the text. Since the original options' checkboxes don't have labels, we'll present the correct option text: "Carbohydrates and it is called cellulose")