Quiz 3.A
1) What is diffusion?
2) What influences the rate of diffusion?
3) Do the particles in diffusion move with or against the concentration gradient?
4) What is osmosis?
5) What is a partially permeable membrane?
6) What does water potential mean?
7) Is the water potential of pure water greater or less than the water potential of a sucrose solution?
8) What is active transport?
9) Do the particles in active transport move with or against the concentration gradient?
10) Out of diffusion, osmosis and active transport, which one(s) use energy? And what type of energy is used?
11) What influences the rate of osmosis?
12) Where does active transport occur?
13) Fill in the gaps:
The alveoli are responsible for gas exchange. Oxygen _______ from the alveoli into the blood stream/ capillary, and carbon dioxide __________ from the blood stream /capillary into the alveoli.
2) What influences the rate of diffusion?
3) Do the particles in diffusion move with or against the concentration gradient?
4) What is osmosis?
5) What is a partially permeable membrane?
6) What does water potential mean?
7) Is the water potential of pure water greater or less than the water potential of a sucrose solution?
8) What is active transport?
9) Do the particles in active transport move with or against the concentration gradient?
10) Out of diffusion, osmosis and active transport, which one(s) use energy? And what type of energy is used?
11) What influences the rate of osmosis?
12) Where does active transport occur?
13) Fill in the gaps:
The alveoli are responsible for gas exchange. Oxygen _______ from the alveoli into the blood stream/ capillary, and carbon dioxide __________ from the blood stream /capillary into the alveoli.