1. based on the image above of an alveolus, in which direction will carbon dioxide diffuse? c to a a to c d to b b to d 2. in an enzyme-substrate reaction, what does vmax refer to? the maximum speed at which product is converted to substrate the maximum speed at which substrate is converted to product the maximum concentration of product produced by the reaction the maximum concentration of substrate consumed by the reaction

1. Answer;

B to D

Explanation;

The diagram shows the site of gaseous exchange in the lungs called alveoli.

Oxygen and carbon dioxide move from where there is a large concentration to where there is a lower concentration.

Carbon dioxide from the blood moves out of the capillaries into the alveoli, then exhilarated out of the body through the nostrils.

Oxygen diffuses from the alveoli, into the blood in the capillaries, then taken to the heart through the pulmonary vein, and then transported to all parts of the body.

2. Answer;

The maximum speed at which substrate is converted to product

Explanation;

Vmax is the rate of reaction when the enzyme is saturated with substrate,it is the maximum rate of reaction.

Vmax depends on the structure the enzyme itself and the concentration of enzyme present.