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

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

Chlorophyll absorbs energy.

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
2 hours ago

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 part of the light-independent reactions of photosynthesis.

User Icon for Hummingbird 7th Hummingbird 7th answered
2 hours ago

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 withers and dies.
The plant withers and dies.

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

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

The plant grows and thrives.

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
2 hours ago

The scientist will likely observe:

**The plant withers and dies.**

Blocking the stomata with petroleum jelly prevents gas exchange, which is essential for the plant to take in carbon dioxide for photosynthesis and release oxygen. Over time, this will lead to the plant's inability to produce energy, resulting in wilting and potential death.

User Icon for Hummingbird 7th Hummingbird 7th answered
2 hours ago

How many carbon atoms combine in the photosynthesis reaction?(1 point)

Responses

12
12

2
2

1
1

6
6

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
2 hours ago

In the photosynthesis reaction, **6 carbon atoms** combine. This is represented in the overall equation for photosynthesis:

\[ 6 \text{CO}_2 + 6 \text{H}_2\text{O} \rightarrow \text{C}_6\text{H}_{12}\text{O}_6 + 6 \text{O}_2 \]

In this reaction, 6 carbon dioxide molecules (each containing 1 carbon atom) combine to produce one glucose molecule (C₆H₁₂O₆), which has 6 carbon atoms.