Cell Biology Quiz

What is the function of the cytoskeleton of the cell?

• To provide energy to the cell

• To control the entry and exit of substances in the cell

• To give the cell its shape and help in its movement

• To store genetic information

What contributes to functions like cell migration?

• The breakdown of the cell membrane

• The formation of actin filaments

• The replication of DNA

• The synthesis of lipids

How do actin and myosin interact within the cell?

• By replicating DNA

• By synthesizing proteins

• By forming contractile networks and moving cargo

• By facilitating cell communication

What is the cytoskeleton?

• A rigid, static structure in the cell

• A complex, dynamic network of interlinking protein filaments

• A single filament that connects the nucleus to the cell membrane

• A type of cell membrane

Where is the cytoskeleton located?

• Outside the cell membrane

• Within the cell nucleus

• In the cytoplasm of all cells

• In the mitochondria

What does the cytoskeleton extend from and to within a cell?

• From the cell membrane to the mitochondria

• From the cell nucleus to the cell membrane

• From the endoplasmic reticulum to the Golgi apparatus

• From the cytoplasm to the extracellular matrix

Which of the following are the main filaments that compose the cytoskeleton?

• Microfilaments, intermediate filaments, and microtubules

• Actin filaments, pili, and flagella

• Collagen, elastin, and keratin

• Myosin, kinesin, and dynein

What determines cellular organization and polarity according to the image?

• The nucleus

• The cytoskeleton

• The basal lamina

• The microvillus

Which components are organized in arrays to maintain the critical differences between the different domains?

• Microvilli and desmosomes

• Nucleus and basal lamina

• Microtubules, actin filaments, and intermediate filaments

• Hemidesmosomes and adherens junctions

What is the function of the structures labeled as 'intermediate filaments', 'microtubules', and 'actin microfilaments' in the diagram?

• They form the basal lamina

• They are involved in cellular movement

• They maintain the critical differences between the different domains

• They create the microvillus structure