Question

Herbicides are chemicals that kill plants by interrupting important biological processes. Different herbicides affect different plant processes. The herbicide atrazine prevents the chemical reactions that use energy from sunlight.

A plant is sprayed with atrazine.
Exposure to atrazine causes an immediate decrease in the production of two substances in plant. Select the substance.
A. DNA
B. Carbon dioxide
C. Oxygen
D. Phospholipids

Answer 1

The correct answer is Option C, Oxygen, because atrazine inhibits the process of photosynthesis, resulting in less oxygen production as a byproduct of this process.

Step-by-step explanation:

Herbicides like atrazine are designed to control weeds by inhibiting essential processes in plants. Atrazine specifically targets the process of photosynthesis, the method by which plants use sunlight to produce energy and synthesize sugars from carbon dioxide and water. When a plant is sprayed with atrazine, it experiences a disruption in the photosynthesis process, leading to an immediate decrease in the production of oxygen and sugars (not directly listed in the options, but it is implied).

Oxygen is a byproduct of photosynthesis, which is halted due to atrazine's action. Thus, the correct answer to the question "Exposure to atrazine causes an immediate decrease in the production of two substances in plant. Select the substance." would be Option C, Oxygen. It's important to note that DNA, phospholipids, and carbon dioxide are not directly affected by the interruption of photosynthesis as they are involved in different biological processes.

Answer 2

oxygen because that's one of the substance that plants produce.

You can also do this by the process of elimination. Knowing that atrazine impedes the production of substances in plants, we know that it can't be DNA and Phospholipid. Carbon Dioxide is used by plant, not produced; thus, oxygen is the answer.