Cell Structure and Function

Which of the following is NOT a function of the cytoskeleton?

• Maintaining cell shape
• Providing mechanical support
• Facilitating intracellular transport
• Photosynthesis

Which plastid stores proteins?

• Chloroplasts
• Chromoplasts
• Aleuroplasts
• Amyloplasts

What is the primary function of the thylakoid lumen?

• DNA storage
• Protein synthesis
• Water storage
• Proton accumulation

Which part of the chloroplast connects different grana?

• Thylakoid
• Grana
• Matrix
• Stroma lamellae

What is the sedimentation coefficient of prokaryotic ribosomes?

• 60S
• 80S
• 90S
• 70S