Imagine you are conducting a lab investigation with a plant that grows in water. You get aquarium water and a few sprigs of the plant from an aquarium shop. You put the container with the plant and the water in bright light and observe it for a week. At first, you see bubbles forming. What must those bubbles be?

Question

Imagine you are conducting a lab investigation with a plant that grows in water.  You get aquarium water and a few sprigs of the plant from an aquarium shop.  You put the container with the plant and the water in bright light and observe it for a week.  At first, you see bubbles forming.  What must those bubbles be?

(1 point)
Responses

glucose sugar
glucose sugar

oxygen gas
oxygen gas

carbon dioxide gas
carbon dioxide gas

hydrogen gas
hydrogen gas
Question 2
11b.  After a while, you notice the bubbles are no longer forming.  You ask your teacher how to make the plant start producing bubbles again, and she tells you to blow through the straw into the water.  Why did she suggest that?(1 point)
Responses

Blowing through the straw adds glucose to the water.
Blowing through the straw adds glucose to the water.

Blowing through the straw removes oxygen from the water.
Blowing through the straw removes oxygen from the water.

Blowing through the straw adds more carbon dioxide to the water.
Blowing through the straw adds more carbon dioxide to the water.

Blowing through the straw removes glucose from the water.
Blowing through the straw removes glucose from the water.

Blowing through the straw removes carbon dioxide from the water.
Blowing through the straw removes carbon dioxide from the water.
Question 3
11c.  What process have you been observing?(1 point)
Responses

decomposition
decomposition

sedimentation
sedimentation

cellular respiration
cellular respiration

photosynthesis
photosynthesis

GPT 3.5 · Answer

photosynthesis

Answer

answer the rest of the questions

GPT 3.5 · Answer

Question 2:

The correct answer is: Blowing through the straw adds more carbon dioxide to the water.

Explanation: The bubbles observed in the water are likely oxygen gas that is being produced through photosynthesis by the plant. By blowing through the straw, you are adding carbon dioxide to the water, which is a necessary ingredient for photosynthesis to occur. This can stimulate the plant to start producing bubbles again.

Question 3:

The correct answer is: photosynthesis.

Explanation: The process being observed is photosynthesis. This is the process by which plants use sunlight, water, and carbon dioxide to produce glucose (sugar) and oxygen gas. The bubbles observed initially are a result of oxygen gas being produced during photosynthesis.