KS1 (Age 5-7)KS2 (Age 7-11)11 Plus (Age 7-11)KS3 (Age 11-14)GCSE (Age 14-17)PSHE A.I.ESL Spanish Specialist Games

Need help with Unit 3 - Water Loss in Plants? Ask our AI Tutor!

AI Tutor - Lucy

Connecting with Tutor...

Please wait while we establish connection

Hi! I'm Lucy, your AI tutor. How can I help you with Unit 3 - Water Loss in Plants today?

now

Water is lost from a plant more rapidly on a hot, dry day.

Unit 3 - Water Loss in Plants

GCSE Biology looks at how plants lose water through their leaves, how stomata control this loss and what happens when conditions become hot, dry or windy.

Explore the Topic →

(quiz starts below)

Fascinating Fact:

Wilting occurs when a plant loses water faster than it can replace it through the roots. The leaves droop and their surface area exposed to the sun and air becomes smaller.

In GCSE Biology, water loss in plants is linked to transpiration and gas exchange. You study how stomata, guard cells and leaf adaptations balance water loss with the need for carbon dioxide.

Key Terms

Transpiration: The loss of water vapour from plant leaves, mainly through stomata, into the surrounding air.
Stomata: Tiny pores in the leaf surface that open and close to control gas exchange and water vapour loss.
Guard cells: Pairs of cells that change shape to open or close stomata, helping to regulate water loss.

Frequently Asked Questions (click to see answers)

What is transpiration in plants for GCSE Biology?

Transpiration is the process where water moves from roots to leaves and then evaporates as water vapour from the leaf surface, mainly through stomata.

Which factors affect the rate of water loss in plants?

The rate of water loss increases with higher temperature, brighter light and stronger wind, and decreases when humidity is high or stomata are more closed.

How do plants reduce excessive water loss?

Plants can partly close stomata, grow a thicker waxy cuticle, roll or curl leaves and grow smaller leaves to reduce the surface area for water loss.

Try These Related Quizzes

1 .

The process by which a plant loses water is called...

transportation

translocation

transduction

transpiration

It sounds like respiration but has nothing to do with the release of energy in cells

2 .

The loss of water vapour from a surface is known as...

evaporation

condensation

respiration

photosynthesis

Knowing the factors that affect evaporation should help you to answer most questions about the rate of transpiration

3 .

What are the tiny pores found in plant leaves?

Tubules

Holes

Paws

Stomata

They allow carbon dioxide into leaves and let oxygen and water out

4 .

Which of the following are specialised cells found on either side of a stoma?

Police

Army

Guard

Sentry

Guard cells change shape and cause the stoma to open or close, depending on conditions

5 .

During photosynthesis, what enters the leaves through the stomata?

Oxygen

Carbon dioxide

Hydrogen

Water

Carbon dioxide from the atmosphere enters the plant and is used in photosynthesis to make sugars

6 .

During transpiration, what leaves the plant through stomata?

Carbon dioxide

Water vapour

Ammonia

Glucose

Desert plants have reduced stomata or close them to avoid water loss

7 .

Water is lost from a plant more rapidly on a ...

hot, dry day

cold, wet night

cold, dry day

hot, humid day

Increased temperature increases the rate of water loss. If it is humid, there is less of a concentration gradient so less water is lost

8 .

Plants can increase their water uptake by having...

bigger leaves

extensive root system

smaller roots

smaller leaves

More roots provide the plant with a larger area for a greater water uptake

9 .

Plants do which of the following to reduce water loss?

Keep the stomata closed

Keep the stomata open

Wilt and collapse

Flatten their leaves

Many plants close their stomata during the day when it is hot

10 .

Plant roots have an enormous surface area for water absorption due to which of the following?

Roots

Root hairs

Many leaves

Stomata

Root hairs and root hair cells increase the water absorbing area of plant roots

You can find more about this topic by visiting BBC Bitesize - Transport systems plants

Author: Donna Davidson (GCSE Biology Teacher & Examiner, Quiz Writer)

**Unlimited Quizzes Await You! 🚀**

Hey there, quiz champ! 🌟 You've already tackled today's free questions.
Ready for more?

🔓 Unlock UNLIMITED Quizzes and challenge yourself every day. But that's
not all...

🔥 As a Subscriber you can join our thrilling "Daily Streak" against other
quizzers. Try to win a coveted spot on our Hall of Fame Page.

Don't miss out! Join us now and keep the fun rolling. 🎉

Subscribe & Play

**Unlimited Quizzes Await You! 🚀**

Hey there, quiz champ! 🌟 You've already tackled today's free questions. Ready for more?

🔓 Unlock UNLIMITED Quizzes and challenge yourself every day. But that's not all...

🔥 As a Subscriber you can join our thrilling "Daily Streak" against other quizzers. Try to win a coveted spot on our Hall of Fame Page.

Don't miss out! Join us now and keep the fun rolling. 🎉

Subscribe & Play

Contact Details

Education Quizzes

Heron's Way, Wragg Marsh
Spalding
Lincolnshire
PE12 6HH
England

Email

admin@educationquizzes.com

Customer Service

Home Page Parents Students Tutors Teachers
Colour Filters Safe AI
Your Account

Here To Help

About Us

Our Team Testimonials Parent Reviews Terms and Conditions Privacy Policy

Leave Feedback