Y11 Transport and Enzymes

What is an isotonic solution?

• A solution with equal osmotic pressure and water potential as another solution
• A solution with higher osmotic pressure than another solution
• A solution with lower osmotic pressure than another solution
• A solution with no osmotic pressure

What is the direction of water movement in a hypotonic solution?

• Movement of water in both directions
• No movement of water
• From higher to lower concentration
• From lower to higher concentration

How is osmosis different from diffusion?

• Osmosis occurs across a semipermeable membrane, while diffusion does not
• Osmosis involves the movement of solutes, while diffusion involves the movement of solvents
• Osmosis requires the expenditure of energy, while diffusion does not
• Osmosis occurs from higher to lower concentration, while diffusion occurs from lower to higher concentration

What is active transport?

• The movement of substances across a semipermeable membrane
• The movement of substances from lower to higher concentration
• The movement of substances from higher to lower concentration
• The movement of substances without the expenditure of energy

What happens to a cell in an isotonic solution?

• The cell swells from the influx of water
• The cell shrinks as water leaves the cell
• The cell bursts
• The cell remains the same

What is the role of enzymes in chemical reactions?

• To slow down specific chemical reactions
• To speed up specific chemical reactions
• To neutralize specific chemical reactions
• To reverse specific chemical reactions

What is osmosis?

• The movement of solvent molecules through a semipermeable membrane
• The movement of water molecules from lower to higher concentration
• The movement of solvents through a permeable membrane
• The movement of solutes between two solutions

What is the role of membrane proteins in active transport?

• To move substances from higher to lower concentration
• To move substances from lower to higher concentration
• To assist in the movement of substances across a semipermeable membrane
• To facilitate the movement of substances without the expenditure of energy

What happens to a cell in a hypotonic solution?

• The cell shrinks as water leaves the cell
• The cell bursts
• The cell swells from the influx of water
• The cell remains the same

What is the role of an enzyme?

• To reverse specific chemical reactions
• To slow down specific chemical reactions
• To speed up specific chemical reactions
• To neutralize specific chemical reactions

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-5