Video Transcript
Which of the following gases is
important for protein synthesis by plants? (A) Carbon dioxide, (B) hydrogen,
(C) carbon monoxide, (D) nitrogen, (E) oxygen.
The Earth’s atmosphere contains
gases that are essential to plant life. The Earth’s atmosphere is primarily
composed of nitrogen and oxygen. The atmosphere also contains a
variable amount of water vapor, a small portion of carbon dioxide, and trace amounts
of other gases like carbon monoxide and hydrogen.
During photosynthesis, plants
absorb carbon dioxide from the atmosphere along with water from the soil and
sunlight to produce energy. During this process, plants release
oxygen into the atmosphere, which we need to breathe. Nitrogen is another important
component for plant growth. Nitrogen is used by plants to form
proteins necessary for the plants to grow.
We can see that many gases in our
atmosphere are necessary for plant growth. But the one used by plants to form
proteins is nitrogen. Therefore, the gas that is
important for protein synthesis in plants is answer choice (D), nitrogen.
