Podcast
Questions and Answers
What is the term used to describe the movement of oxygen from the alveoli in the lungs into the red blood cells?
What is the term used to describe the movement of oxygen from the alveoli in the lungs into the red blood cells?
- Gas exchange (correct)
- Active transport
- Osmosis
- Plasmolysis
Which of the following factors affects the rate of diffusion?
Which of the following factors affects the rate of diffusion?
- Concentration gradient
- Surface area of the membrane
- Temperature
- All of the above (correct)
What is the term used to describe the movement of carbon dioxide from the red blood cells into the lungs?
What is the term used to describe the movement of carbon dioxide from the red blood cells into the lungs?
- Osmosis
- Plasmolysis
- Active transport
- Gas exchange (correct)
How does an increase in temperature affect the rate of diffusion?
How does an increase in temperature affect the rate of diffusion?
What is the term used to describe the movement of urea from the liver cells into the blood plasma?
What is the term used to describe the movement of urea from the liver cells into the blood plasma?
How does an increase in the concentration gradient affect the rate of diffusion?
How does an increase in the concentration gradient affect the rate of diffusion?
What happens to a cell if the external solution is more concentrated in terms of water potential?
What happens to a cell if the external solution is more concentrated in terms of water potential?
What pressure is essential in keeping the leaves and stems of plants rigid?
What pressure is essential in keeping the leaves and stems of plants rigid?
What happens if the external solution is more dilute in terms of osmosis in plants?
What happens if the external solution is more dilute in terms of osmosis in plants?
What results in the cell membrane moving away from the cell wall and eventual cell death?
What results in the cell membrane moving away from the cell wall and eventual cell death?
In the experiment with sugar solutions and plant tissue, what affects the mass of the potato tubers?
In the experiment with sugar solutions and plant tissue, what affects the mass of the potato tubers?
What defines active transport in terms of particle movement?
What defines active transport in terms of particle movement?
What is the main difference between active transport and diffusion?
What is the main difference between active transport and diffusion?
In root hairs, why does the uptake of water and mineral ions require energy from respiration?
In root hairs, why does the uptake of water and mineral ions require energy from respiration?
Why may diffusion not take place between the gut and the bloodstream for some substances?
Why may diffusion not take place between the gut and the bloodstream for some substances?
What role does active transport play in moving sugar from the gut into the bloodstream?
What role does active transport play in moving sugar from the gut into the bloodstream?
In which scenario is active transport essential: when moving mineral ions in root hairs or when transporting glucose from the gut to the blood?
In which scenario is active transport essential: when moving mineral ions in root hairs or when transporting glucose from the gut to the blood?
