Cell Wall Quiz

What is the primary function of the cell wall?

• Energy production

• Protection and support

• DNA replication

• Protein synthesis

Which organisms typically have a cell wall?

• Animals

• Plants, fungi, and bacteria

• Viruses

• All eukaryotic cells

What is the main component of plant cell walls?

• Chitin

• Peptidoglycan

• Cellulose

• Lipids

The cell wall in fungi is primarily composed of:

• Cellulose

• Chitin

• Peptidoglycan

• Proteins

What is the function of the middle lamella in plant cells?

• Stores genetic material

• Helps in photosynthesis

• Binds adjacent cells together

• Produces ATP

Which type of bacteria has a thick peptidoglycan layer in its cell wall?

• Gram-negative bacteria

• Gram-positive bacteria

• Archaea

• Cyanobacteria

The cell wall is absent in:

• Bacteria

• Fungi

• Animal cells

• Plant cells

What is the permeability nature of the cell wall?

• Selectively permeable

• Completely impermeable

• Fully permeable

• Semi-permeable

What is the outermost layer of a bacterial cell wall composed of?

• Lipoproteins and lipopolysaccharides

• Cellulose

• Chitin

• Starch

Which of the following is NOT a function of the cell wall?

• Providing structural support

• Preventing desiccation

• Facilitating active transport

• Protecting against mechanical stress