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If the seeding are grown in darkness : ...

If the seeding are grown in darkness :
1)They are of the same size as those grown in light
2) They are much healthier than those grown in light
3) they are similar to those grown in light
4) They are taller than those grown in light

A

They are of the same size as those grown in light

B

They are much healthier than those grown in light

C

they are similar to those grown in light

D

They are taller than those grown in light

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the growth of seedlings in darkness compared to those grown in light, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Seedling Growth**: Seedlings require light for photosynthesis, which is essential for their growth and development. However, when seedlings are grown in darkness, they do not have access to light. 2. **Role of Auxin**: Auxin is a plant hormone that promotes cell elongation and is crucial for plant growth. In the presence of light, auxin is produced but is also broken down due to its photosensitivity. 3. **Effect of Darkness on Auxin**: In darkness, auxin is not broken down. Therefore, it accumulates in the plant, leading to increased cell elongation and, consequently, taller plants. 4. **Comparing Seedlings**: When comparing seedlings grown in darkness to those grown in light: - Seedlings in darkness will have a higher concentration of auxin, leading to greater height. - Seedlings in light will have lower auxin levels due to its breakdown, resulting in shorter plants. 5. **Conclusion**: Based on the effects of auxin and the conditions of light and darkness, we can conclude that seedlings grown in darkness will be taller than those grown in light. ### Final Answer: **They are taller than those grown in light. (Option 4)**
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