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Transpiration

Transpiration

Assessment

Interactive Video

Biology

9th - 10th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

Transpiration is the process of water loss in plants, primarily through stomata, cuticle, and lenticels. Stomatal transpiration accounts for 90% of water loss. Guard cells control stomatal openings, influenced by intrinsic factors like root-shoot ratio and leaf structure, and environmental factors such as light, humidity, temperature, and wind. Transpiration aids in nutrient distribution, cooling, and is considered a necessary evil due to water loss.

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of transpiration accounts for the majority of water loss in plants?

Stomatal transpiration

Cuticular transpiration

Lenticular transpiration

Root transpiration

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the shape of guard cells in dicot plants?

Dumbbell-shaped

Round

Kidney-shaped

Square

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does an increase in root-shoot ratio affect transpiration?

Stops transpiration completely

Increases the rate of transpiration

Decreases the rate of transpiration

Has no effect on transpiration

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which leaf feature is associated with slower transpiration?

Exposed stomata

Large surface area

Thick cell walls

Thin cuticle

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the rate of transpiration when the air humidity is high?

It stops completely

It remains constant

It decreases

It increases

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does wind affect the rate of transpiration?

Has no effect

Decreases the rate

Increases the rate

Stops transpiration

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one positive effect of transpiration on plants?

Cools the leaves

Reduces mineral absorption

Causes water loss

Increases soil erosion

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