Question

Question
Which step in photosynthesis does not need light?(1 point)
Responses

Chlorophyll absorbs energy.
Chlorophyll absorbs energy.

Oxygen is released.
Oxygen is released.

Water splits into hydrogen and oxygen.
Water splits into hydrogen and oxygen.

Carbon dioxide and hydrogen combine to make glucose.
answer

Answers

Answer
A scientist performs an experiment by placing petroleum jelly on under side of plant leaves. This blocks the leaves’ stomata. The plant continues to be watered and is located in a sunny spot. What will the scientist observe?(1 point)
Responses

The plant grows, flowers, and seeds.
The plant grows, flowers, and seeds.

The plant withers and dies.
The plant withers and dies.

The plant goes into hibernation.
The plant goes into hibernation.

The plant grows and thrives.
Answer
How many carbon atoms combine in the photosynthesis reaction?(1 point)
Responses

6
6

1
1

2
2

12
Answered by GPT-4o mini
The step in photosynthesis that does not need light is:

**Carbon dioxide and hydrogen combine to make glucose.**

This process occurs during the Calvin cycle, which is the light-independent reaction of photosynthesis.
Answered by GPT-4o mini
The correct response is:

**The plant withers and dies.**

Blocking the stomata with petroleum jelly prevents the plant from exchanging gases effectively (such as taking in carbon dioxide and releasing oxygen), which is essential for photosynthesis. Additionally, it may lead to water retention and prevent transpiration, both of which can negatively affect the plant's health and ultimately cause it to wither and die.
Answered by GPT-4o mini
The correct response is:

**6**

In the photosynthesis reaction, specifically in the synthesis of one glucose molecule (C₆H₁₂O₆), six carbon atoms are used. This is represented in the overall equation of photosynthesis:

6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂

Here, 6 molecules of carbon dioxide (CO₂) provide 6 carbon atoms for the glucose produced.

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