Module 2 Lecture Assignment 1. Gases move from an area of lower concentration to

Question

Module 2 Lecture Assignment 1. Gases move from an area of lower concentration to higher concentration. True 2. Dalton's law states that the total pressure of a gas is the sum of pressures of each gas. False 3 lf a single gas represents 60% of the total gas, its partial pressure will be 60% of the total pressure. Click to select blte contrn of orygen in the aiveolis greater thanthe concnraton of orgen in the blod, ognwout of the blood. [Cick to select) a, tvpic aly carbon dioie crs are higher in the blood than m the alvol so carbon diowde difuses trom the blood to the alveoli. (Click to select) ok

Explanation / Answer

1. gases do undergo osmosis but not without the help of water. they normally undergo diffusion. so here there is no mention of water so the answer is FALSE

2. Dalton's law. Dalton's law, the statement that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the individual component gases. The partial pressure is the pressure that each gas would exert if it alone occupied the volume of the mixture at the same temperature. so here the answer is TRUE

3.pi=ptotal. so the statement is actually TRUE according to daltons law.

5. Oxygen and carbon dioxide move from where there is a large concentration of where there is a lower concentration. This movement is called diffusion. Oxygen diffuses from the alveoli, into the blood in the capillaries. Similarly, carbon dioxide from the blood moves out of the capillaries into the alveoli. so TRUE

4. Oxygen diffuses from the alveoli, into the blood in the capillaries. so the statement is FALSE

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