What do the guard cells do?

Control the opening and closing of stomata to change the rate of water vapour diffusing out of them

Control nutrients moving into the cell

Controls the rate of transpiration (loss of water through the leaf)

Students are instructed to place leafy celery stalks into color water in a beaker overnight. The following day, the students observed the color of the celery leaves changed from green to red. The students cut across the edge of the celery and observed the small tube openings along the edge are also red. How do the plant systems work together to make the movement of the liquid possible?

The roots absorb the water, minerals move up the stem, while the stem moves food produced in the leaves down to the roots.

The roots anchor the plant into the soil and the stem holds the leaves up.

The roots absorb their own water and minerals and the leaves push out CO2.

The roots lose water vapor to the soil and the stem loses water vapor through the leaves.

Where is evaporation taking place in a leaf?

palisade mesophyll cells to air spaces

air spaces to surrounding environment

Where is diffusion taking place in a leaf?

air spaces to surrounding environment

palisade mesophyll cells to air spaces

Epidermis of a leaf is made up of

single layer of epidermal cells

double layer of epidermal cells

triple layer of epidermal cells

Where are the epidermal cells covering a plant?

both upper and lower surfaces of a leaf

What are the uses of a leaf's waxy cuticle

covers the outer surface of the leaf

reduce water loss during transpiration

reduce the heat cause by the sun

increase the activity of photosynthesis

A leafy shoot was placed in a beaker containing a blue dye and then examined 5 hours later. Which statement explains the change in appearance?

Blue dye moves through the xylem.

Blue dye stains cells in the leaves.

Blue dye moves up the stem by osmosis

Blue dye diffuses through the cells of the plant.

What is translocation?

the transport of sucrose and amino acids in phloem tissues

the transport of sucrose and amino acids in the xylem tissues

the transport of water and minerals in the phloem tissues

the transport of water and minerals in the xylem tissues

A potometer is used to

find the rate of diffusion from a plant

The purpose of the layer of oil in the flask of the mass potometer is

to prevent water evaporating from the flask

to prevent bacteria entering the flask

to hold the plant steady in the flask

A leafy shoot was placed in the apparatus shown. The rate of movement of the air bubble was measured. Which change would make the air bubble move faster?

decreasing the air temperature around the shoot

increasing the humidity around the shoot

removing some leaves from the shoot

Which of these is an adaptation of hydrophytes?

Stomata on upper side of leaves

"Transpiration" is best described as

the loss of water vapour from plant leaves by evaporation at the surfaces of mesophyll cells followed by diffusion of water vapour through stomata

the movement of water through a plant from the roots up the stem to the leaves

the flow of water into plant roots by osmosis from the soil

the loss of water vapour from plant leaves by evaporation at the stomata

IGCSE 0610 8 Transport in Plants

Authored by L Knowles

Biology

8th - 10th Grade

NGSS covered

Used 1K+ times

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40 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The evaporation of water from the stomata (openings in the leaves) is the process of ...

Transpiration

Translocation

Diffusion

Perspiration

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This plant structure carries sugars, amino acids, and plant hormones.

Xylem Vessels

Phloem

Plant Straws

Plant Blood Vessels

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

These plant structures carry water and mineral ions.

Xylem Vessels

Phloem

Transpiration Tunnels

Plant Arteries

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which of the follow affect the rate of transpiration (how fast a plant loses water to evaporation from the leaves)? SELECT ALL THAT APPLY

Light

Humidity

Wind

Temperature

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What could increase the rate of water uptake (transpiration) by a plant?

Placing it in a refridgerator

placing a clear plastic bag over the plant (increases humidity)

removing the leaves from the plant

shining a bright light on the plant

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of the phloem?

to transport water and mineral ions

to transport sugars and amino acids

to store food

to support the plant's stem

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Without the process of transpiration, a plant would be unable to...

Move sucrose from the leaves to the roots.

Create new proteins for the plant.

Pull up new water and mineral ions from the roots to the leaves.

Grow towards the light.

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IGCSE 0610 8 Transport in Plants

The evaporation of water from the stomata (openings in the leaves) is the process of ...

This plant structure carries sugars, amino acids, and plant hormones.

These plant structures carry water and mineral ions.

Which of the follow affect the rate of transpiration (how fast a plant loses water to evaporation from the leaves)? SELECT ALL THAT APPLY

What could increase the rate of water uptake (transpiration) by a plant?

What is the function of the phloem?

Without the process of transpiration, a plant would be unable to...

What is the vessel coloured pink in this diagram?

What part of the plant is this cross sectional diagram of?

What colour is the area which contains PHLOEM in this diagram?

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