Cell Structure and Function

Which of the following best describes the structure of the cell membrane?

• Solid wall
• Hollow tube
• Rigid shell
• Lipid bilayer with embedded proteins

Which of the following is a function of the plasma membrane?

• Photosynthesis
• Respiration
• Digestion
• Maintains homeostasis

Which of the following best describes the function of DNA in the cell?

• Produces energy
• Transports proteins
• Absorbs light
• Carries genetic instructions for development and function

Which of the following best describes the origin of new cells?

• From non-living matter
• From water
• From air
• From pre-existing cells

Which of the following is a reason why cells divide?

• To die
• To shrink
• To disappear
• To grow, repair, and reproduce