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Questions and Answers
What is the primary source of energy for diffusion?
What is the primary source of energy for diffusion?
- Cellular respiration
- The kinetic energy of random movement of molecules and ions (correct)
- Active transport
- Concentration gradient
What is the net direction of particle movement in diffusion?
What is the net direction of particle movement in diffusion?
- From a region of higher concentration to a region of lower concentration (correct)
- Random movement in all directions
- No net movement
- From a region of lower concentration to a region of higher concentration
What is the role of water in osmosis?
What is the role of water in osmosis?
- To facilitate the movement of ions across the cell membrane
- As a solvent to aid in digestion, excretion, and transport (correct)
- To regulate the temperature of the cell
- To aid in the transport of glucose and oxygen
What is the primary factor that influences the rate of diffusion?
What is the primary factor that influences the rate of diffusion?
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What is the term for the movement of water molecules from a region of higher water potential to a region of lower water potential?
What is the term for the movement of water molecules from a region of higher water potential to a region of lower water potential?
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What happens to a cell in an animal when the solute concentration inside the cell increases?
What happens to a cell in an animal when the solute concentration inside the cell increases?
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What is the purpose of carrier proteins in active transport?
What is the purpose of carrier proteins in active transport?
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What is the main difference between the effects of solute concentration on plant cells versus animal cells?
What is the main difference between the effects of solute concentration on plant cells versus animal cells?
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What is the function of dialysis tubing in the dialysis tubing experiment?
What is the function of dialysis tubing in the dialysis tubing experiment?
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Why is active transport necessary in certain organisms?
Why is active transport necessary in certain organisms?
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