Cell Transport Review

Which of the following structures serves as the cell's boundary from its environment?

• mitochondria

• cell membrane

• chloroplast

• channel protein

Which of the following is a function of the cell membrane?

• breaks down lipids, carbohydrates, and proteins from foods

• stores water, salt, proteins and carbohydrates

• keeps the cell wall in place

• regulates the movement of materials into and out of the cell

The cell membrane contains channels that help move materials from one side to the other. What are these channels made of?

• carbohydrates

• lipids

• bilipids

• proteins

The diffusion of water across a selectively permeable membrane is called

• osmotic pressure

• osmosis

• pinocytosis

• active transport

Which means of particle transport requires input energy from the cell?

• diffusion

• osmosis

• facilitated diffusion

• active transport

Which means of particle transport is shown?

• diffusion

• osmosis

• facilitated diffusion

• active transport

Which means of particle transport is shown?

• Facilitated Diffusion

• Simple Diffusion

• Active Transport

The movement of molecules from an area of higher concentration to an area of lower concentration is called

• diffusion

• endocytosis

• catalysis

• active transport

Which of the following is an example of active transport?

• facilitated diffusion

• osmosis

• diffusion

• none

Osmosis uses energy.

• True

• False