Section 3 Cellular Transport review pgs 82-84

When does diffusion occur across the 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 carbohyrate
• 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

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 selective permeable membrane called?

• Osmosis
• Endocytosis
• Facilitated diffusion
• active transport

The diagram in the book pg 83 Q9 shows which process?

• Diffusion

• Osmosis

• active transport

• endocytosis

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