Cell Structure and Function

What type of transport does not require energy and involves the movement of molecules from higher to lower concentration?

• Osmosis
• Active transport
• Endocytosis
• Diffusion

According to the fluid mosaic model, what is the primary component of the plasma membrane?

• Nucleic acids
• Carbohydrate matrix
• Lipid bilayer of phospholipids
• Protein crystal lattice

How is the Golgi body structured in plant cells compared to animal cells?

• As a single large complex in plants
• As mitochondria in plants
• As lysosomes in plants
• As dictyosomes in plant cells

Which organelle is responsible for cell division in animal cells but absent in plant cells?

• Nucleus
• Mitochondria
• Vacuole
• Centriole

Do animal cells have plastids?

• Yes, in large numbers
• Yes, but only in muscle cells
• No, animal cells do not have plastids
• Yes, in nerve cells