Cell Structure and Function

How does the tonoplast influence ion concentration in the vacuole?

• It prevents ion movement
• It allows free diffusion
• It neutralizes ions
• It transports ions against gradients

What surrounds the vacuole in plant cells?

• Plasma membrane
• Double membrane
• Cell wall
• Tonoplast

At what pH do lysosomal enzymes work optimally?

• Basic pH
• Neutral pH
• Variable pH
• Acidic pH

What kind of enzymes are found in lysosomes?

• Photosynthetic enzymes
• Respiratory enzymes
• Enzymes for DNA replication
• Hydrolytic enzymes

Which organelle is responsible for the formation of lysosomes?

• Endoplasmic reticulum
• Mitochondria
• Chloroplast
• Golgi apparatus