Question

Most of the mass of organic material of a plant comes from

A. water
B. carbon dioxide
C. soil minerals
D. atmospheric oxygen
E. nitrogen

Also, explanations for answers on why it's correct/incorrect please

Answer 1

Answer: B, carbon dioxide

Explanation:

the mass is primarily carbon because the carbon comes from the carbon dioxide used during photosynthesis. during photosynthesis, plants will convert the sun's energy into a chemical captured within the bonds of carbon molecules created from carbon dioxide and water. The Caborn ends up in the plant's food as well

Answer 2

B. Carbon dioxide is the primary source of organic material in plants.

Plants are autotrophs, which means they produce their own food through the process of photosynthesis. During photosynthesis, plants use energy from sunlight to convert carbon dioxide (CO2) and water (H2O) into organic molecules like glucose, which they use as a source of energy and building material. Oxygen (O2) is also produced as a byproduct of photosynthesis.

While water and soil minerals are important for plant growth and development, they do not contribute significantly to the organic mass of the plant. Nitrogen is also important for plant growth and is a component of many organic molecules, but it is not the primary source of organic material in plants.

Therefore, the correct answer is B. Carbon dioxide, which is converted into organic material during photosynthesis, is the main source of the plant's organic mass.