When does diffusion occur across a cell membrane?

• when the concentration of particles is different on each side of the membrane

• when the concentration of particles is equal on both sides of the membrane

• when there are no particles on either side of the membrane

• when water moves across the membrane

Which of the following is a requirement for diffusion to take place?

• a transport protein

• a carrier molecule

• a transport carbohydrate

• a concentration gradient

Which two of the following processes require energy?

• osmosis

• exocytosis

• diffusion

• facilitated diffusion

• endocytosis

Water will move out of a cell when it is placed in which type of solution?

• hypotonic

• hypertonic

• ergonomic

• isotonic

Which of the following substances most easily travel through the phospholipid bilayer of a cell membrane?

• sodium ions

• water molecules

• oxygen molecules

• hormones

Which of the following is the cell organelle most responsible for maintaining cellular homeostasis?

• Golgi complex

• nucleus

• endoplasmic reticulum

• cell membrane

Tags

NGSS.HS-LS1-3

Why would an animal cell burst if it is surrounded by fresh water?

• because solutes will move out of the cell

• because water will move out of the cell

• because solutes will move into the cell

• because water will move into the cell

What is the diffusion of water across a selectively permeable membrane called?

• osmosis

• endocytosis

• facilitated diffusion

• active transport

Study the diagram below. The diagram above shows which process?

• diffusion

• osmosis

• active transport

• endocytosis

Tags

NGSS.MS-LS1-2

Which of the following structures can be used to move small particles such as ions across the cell membrane via active transport?

• polar bodies

• transport proteins

• aquaporins

• phospholipids