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asambeis [7]
3 years ago
6

What is the basic mechanism by which air travels to the alveoli for gas​ exchange? emt?

Biology
1 answer:
Anestetic [448]3 years ago
6 0
The Major function of the respiratory system is to exchange oxygen and carbon dioxide. Inhaled oxygen enters the lungs and reaches the alveoli, the layers of the cells lining the alveoli and the surrounding capillaries are each only one cell thick and are in very close contact with each other, the barrier between air and blood averages about 1 micron in thickness. Oxygen diffuses quickly through the air-blood barrier into the blood in the capillaries. Similarly, carbon dioxide passes from the blood into the alveoli and is then exhaled. 
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Which of the following methods do scientists use to measure the amount of carbon dioxide in the atmosphere?
slamgirl [31]

According to Jesse Kroll, an MIT professor of chemical engineering and civil engineering who specializes in atmospheric composition, the primary method used by scientists to quantify greenhouse gases in the atmosphere is spectroscopy. Thus, option A is correct.

<h3>What is the amount of carbon dioxide in the atmosphere?</h3>

Only 0.04% of the atmosphere is made up of carbon dioxide, and water vapor levels can range from 0% to 4%. However, while being the main greenhouse gas in our atmosphere, water vapor possesses “windows” that let some infrared light pass through without being absorbed.

Therefore, find a location outside with pure, unpolluted air, then use a special kind of flask to collect an air sample.

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8 0
1 year ago
What are the four criteria for minerals?
Leona [35]

Answer:

color, streak, hardness, luster, diaphaneity, specific gravity, cleavage, fracture, magnetism, solubility

Explanation:

These physical properties are useful for identifying minerals. However, they are much more important in determining the potential industrial uses of the mineral.

8 0
3 years ago
what would happen if homogenisation and pasteurisation steps are omitted during the production of yoghurt
Vsevolod [243]

Answer:

The correct answer would be - there could be microorganisms like bacteria present and consistency or texture would be not as expected.

Explanation:

Pasteurization is more of a safety process that helps in the elimination of microorganisms like bacteria and this process involves heating the liquid and cooling it down immediately to a very low temperature.

Homgenisation is the process that makes liquid particles evenly small and distributed equally which gives it consistency or texture and taste. Without these two processes, yogurt will have bacteria and inconsistency.

5 0
3 years ago
Which of the samples shown below are photosynthetic
Advocard [28]

Answer:

A, C and D are photosynthetic. They are green stained suggesting the presence of chloroplast and has multiple mitochondria for energy production

6 0
3 years ago
Now, raise one of your hands just slightly and press both hands together again. This motion models a thick plate pressing agains
Trava [24]

Answer:

i dont know

Explanation:

8 0
3 years ago
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