external factors on transpiration

Question 1

What external factors affect the rate of transpiration in plants

Answer 1

Light intensity, temperature, humidity, and air movement.

Question 2

How does light intensity affect transpiration

Answer 2

Higher light intensity = stomata open more for photosynthesis

More open stomata = more water loss
✅ Result: Transpiration increases

Question 3

How does temperature affect transpiration

Answer 3

Higher temperature = faster evaporation of water from leaves
✅ Result: Transpiration increases

Question 4

How does humidity affect transpiration

Answer 4

High humidity = air already has a lot of water vapor

This slows down evaporation from the leaf
❌ Result: Transpiration decreases

Question 5

How does air movement (wind) affect transpiration

Answer 5

Wind blows away water vapor around the leaf

Keeps the air near the leaf dry
✅ Result: Transpiration increases