Passive vs. Active Transport

What is the movement of a substance across a plasma membrane without the need of energy called?

• passive transport

• active transport

• exocytosis

• isotonic

What process moves any material from high concentration to low concentration

• osmosis

• endocytosis

• diffusion

• active transport

What is the movement of water through a semipermeable membrane called?

• exocytosis

• osmosis

• active transport

• facilitated diffusion

Tags

NGSS.HS-ESS2-5

What best describes the cell membrane?

• It is a single layer of lipids.

• It is an impenetrable barrier

• it is strong, rigid, and durable

• It is a lipid bilayer.

When a plant cell is placed in a salt water solution, the cell is affected and changes size. What part of the cell will be unaffected?

• cell membrane

• cytoplasm

• cell wall

• vacuole

Tags

NGSS.MS-LS1-2

What cell process moves substances against the concentration gradient?

• diffusion

• facilitated diffusion

• osmosis

• active transport

What molecule is used as energy for active transport?

• ATP

• ADP

• lipid

• glucose

Which type of cell transport occurs when a cell's membrane folds inward to bring materials into the cell?

• endocytosis

• pinocytosis

• exocytosis

• phagocytosis

What type of protein helps molecules move through a cell membrane?

• channel proteins

• carrier proteins

• receptor proteins

• glycoproteins

What is the main function of a selectively permeable plasma membrane?

• storage of water

• break down of molecules in cells

• storage of chemicals

• regulates what enters and leaves the cell