Cellular Transport

Which of these were mentioned as being present in both prokaryote and eukaryote?

• ribosome

• nucleus

• endoplasmic reticulum

• cilia

Homeostasis is compared to which of these

• a sporadic environment

• a stable environment

What is the primary structural component of the cell membrane?

• Genetic material

• Cytoplasm

• Phospholipid bilayer

• Ribosomes

Which characteristic is true for simple diffusion?

• It requires a transport protein.

• It moves molecules from low to high concentration.

• It requires ATP energy.

• It is a type of passive transport.

How does facilitated diffusion differ from simple diffusion?

• Facilitated diffusion moves molecules against the concentration gradient.

• Facilitated diffusion requires ATP energy.

• Facilitated diffusion requires transport proteins.

• Facilitated diffusion only transports nonpolar molecules.

What defines active transport?

• Movement of molecules from high to low concentration without energy.

• Movement of molecules from low to high concentration using ATP energy.

• Movement of small, nonpolar molecules directly across the membrane.

• Movement of molecules with the help of protein channels but no energy.

Where was the food pulled into?

• the golgi apparatus

• the nucleus

• a vacuole

• the endoplasmic reticulum