Question

Give reason – Water acts as thermal buffer.

Hint:

Root hairs are specialized for water absorption, and their structure is optimized for this function with organelles like mitochondria for energy production.

Answer 1

Step 1: Understanding Water's Role as a Thermal Buffer.
Water has a high specific heat capacity, meaning it can absorb or release a large amount of heat with a small change in temperature. This property allows water to regulate temperature and act as a thermal buffer, stabilizing temperature in both living organisms and the environment.
Step 2: Conclusion.
Water’s high specific heat capacity helps in maintaining temperature stability, making it an effective thermal buffer.
ii. Draw a neat and proportionate diagram of root hair and label mitochondria, nucleus, and vacuole.
Solution:
Unfortunately, I cannot directly draw diagrams in this text format. However, you can follow these steps to draw the diagram of a root hair: Step 1: Diagram Components.
- Draw an elongated structure to represent the root hair.
- Label the cell wall surrounding the root hair.
- Draw a central large vacuole and label it.
- Draw a small oval-shaped structure to represent the nucleus and label it.
- Label the mitochondria, which are scattered in the cytoplasm, responsible for energy production.
Step 2: Conclusion.
The diagram should clearly show the root hair structure with labels for the mitochondria, nucleus, and vacuole.