Cell Structure and Function Quiz

What is the primary function of the cytoskeleton in cells?

• To store genetic information

• To provide energy for the cell

• To transport nutrients into the cell

• To give shape and support to the cell

Which component of the cytoskeleton is made of actin and is involved in cell movement?

• Microtubules

• Intermediate filaments

• Microfilaments

• Collagen fibers

How do microtubules contribute to cell movement?

• By forming rigid structures that prevent movement

• By providing tracks for organelle movement

• By producing energy for movement

• By storing nutrients for the cell

Which of the following is a characteristic of intermediate filaments?

• They are involved in photosynthesis

• They help anchor the nucleus and maintain cell shape

• They are hollow tubes made of tubulin

• They are involved in muscle contraction

What is the structural difference between cilia and flagella?

• Cilia are involved in cell division, while flagella are not

• Cilia are made of actin, while flagella are made of tubulin

• Cilia are shorter and whip-like, while flagella are longer

• Cilia are longer and whip-like, while flagella are shorter

What is the main component of the extracellular matrix that provides structural support?

• Actin

• Integrin

• Tubulin

• Collagen

What role do integrins play in the extracellular matrix?

• They store energy for the cell

• They transmit signals between cells

• They form the cell wall

• They are involved in DNA replication

Which type of junction prevents the leakage of fluid between animal cells?

• Gap junctions

• Tight junctions

• Anchoring junctions

• Plasmodesmata

What is the function of gap junctions in animal cells?

• To provide structural support

• To allow communication between cells

• To fasten cells into sheets

• To prevent fluid leakage

What is the primary function of plasmodesmata in plant cells?

• To allow communication between adjacent cells

• To store water

• To prevent fluid leakage

• To provide structural support