Plant Organisation

Which of these factors will increase the rate of transpiration in a plant? (Choose 3)

• More light

• More wind

• Higher humidity

• High temperature

Which of the letters on the diagram shows a stoma (plural stomata)?

• A

• B

• C

• D

• E

Which of the letters on the diagram shows where most of the photosynthesis takes place in the leaf?

• A

• B

• C

• D

• E

Tags

NGSS.MS-LS1-6

What effect will an increase in the rate of photosynthesis have on the rate of transpiration?

• It will stop completely

• It will stay the same

• It will increase

• It will decrease

Tags

NGSS.MS-LS1-6

What is the function of the phloem?

• Transports dissolved sugars from the leaves to the rest of the plant

• Transports water and mineral ions from the roots to other parts of the plant

• Allows gases to diffuse through the plant

Tags

NGSS.MS-LS2-3

Which of these factors will decrease the rate of transpiration in a plant?

• Higher temperature

• Higher humidity

• More wind

• More light

Which of the letters on the diagram shows a guard cell?

• A

• B

• C

• D

• E

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

What is the function of the xylem?

• Allows gases to diffuse through the plant

• Transports water and mineral ions from the roots to other parts of the plant

• Transports dissolved sugars from the leaves to the rest of the plant

Tags

NGSS.MS-LS2-1

What is the function of the guard cells?

• They open and close the stomata to allow gases to diffuse in and out

• They control the opening and closing of the stomata to allow diffusion of gases and water loss during transpiration

• To defend the leaf against insects

• They open and close the stomata to allow gases to diffuse in and out and for water to get into the plant

Tags

NGSS.MS-LS1-6

How are palisade mesophyll cells adapted to their function? (Choose 3)

• Found close to upper surface of leaf so they can absorb more sunlight

• Tall and thin so they can be packed into the leaf

• Contain many chloroplasts

• They can open and close to allow diffusion of gases

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6