Question

1. what does this picture best represent? a. active transport b. osmosis c. facilitated diffusion d. diffusion 41. if the domino below was a cell, which direction will the molecules move? a. the molecules will move to the right b. the molecules will not move c. the molecules will move to the left d. the molecules will move in both directions equally 42. what is a summary of the graph? oxygen uptake is how much oxygen is used during exercise. a. the more vigorous the exercise, the less oxygen is required. b. the more vigorous the exercise, the more oxygen is required. c. oxygen is used equally throughout all types of exercise. d. oxygen is created when a person exercises.

Explanation:

Question 40:

The picture shows the movement of water across a semi - permeable membrane. Osmosis is the diffusion of water across a semi - permeable membrane, which matches the image. Active transport requires energy and involves movement against a concentration gradient. Facilitated diffusion and simple diffusion are for non - water molecules.

Question 41:

Molecules move from an area of higher concentration to an area of lower concentration. In the domino - cell example, there are more molecules on the right side, so molecules will move to the left to reach equilibrium.

Question 42:

The graph shows a positive linear relationship between exercise difficulty (in watts) and oxygen uptake. As the exercise difficulty (watts) increases, the oxygen uptake (L/min) also increases, meaning more vigorous exercise requires more oxygen.

Answer:

1. b. osmosis
2. b. The molecules will move to the left
3. b. The more vigorous the exercise, the more oxygen is required.