Cellular Dynamics and Protein Transport

What is the primary function of the rolling macrophage in the bloodstream?

• To transport nutrients

• To deliver oxygen to tissues

• To adhere to endothelial cells and fight infection

• To remove waste products

Which cellular structure is described as being similar to the structural elements holding up a ceiling?

• Golgi apparatus

• Endoplasmic reticulum

• Cytoskeleton

• Mitochondria

What role do motor proteins play in the cell?

• They break down waste materials

• They synthesize DNA

• They transport vesicles along cytoskeletal highways

• They produce energy

How are proteins targeted to specific organelles within the cell?

• Through random diffusion

• By being synthesized directly in the organelle

• By binding to specific lipids

• By binding to other proteins that guide them

What is the function of the Golgi apparatus in protein transport?

• It modifies and sorts proteins for transport

• It degrades old proteins

• It stores genetic information

• It synthesizes proteins