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WorksheetsPlant Gas Exchange
Total questions: 20
Worksheet time: 12mins
Arrange the following statements in the correct order to show how oxygen gas is produced in the leaf and then enters the atmosphere.
(1) Oxygen passes through the stomata.
(2) Oxygen diffuses from the mesophyll cells to the water film.
(3) Oxygen diffuses from the water film to the air space
(4) Oxygen is released from the mesophyll cells.
(3) -> (1) -> (4) -> (2)
(4) -> (2) -> (3) -> (1)
(3) -> (4) -> (1) -> (2)
(4) -> (3) -> (1) -> (2)
The leaf has a shiny, waxy cuticle around it to
increase the rate of photosynthesis
attract more light
control water loss
stop carbon dioxide and oxygen gases escaping
What is letter "A" pointing to?
cuticle
upper epidermis
lower epidermis
palisade mesophyll
What is letter "D" pointing to?
upper epidermis
palisade mesophyll
spongy mesophyll
bundle sheath
Which of the following is pointing to the "guard cell"?
B
C
D
E
Which part of the leaf consists of xylem and phloem?
vascular bundle
bundle sheath
palisade mesophyll
spongy mesophyll
Which of the following is true for the fate of Glucose produced by photosynthesis
Used in respiration to make energy
Evaporated from the leaf
Leaves through the stomata
Which of the following correctly describes the plant at 1200 hour?
It carried out photosynthesis, but not respiration.
It carried out photosynthesis at the maximum rate.
The rate of photosynthesis was equal to the rate of respiration.
The rate of photosynthesis was lower than the rate of respiration.
What gas do plants need for aerobic respiration?
Oxygen
Carbon Dioxide
Nitrogen
Water
Hydrogen carbonate indicator is pink. Which colour does it turn if carbon dioxide is added to it?
Purple
Blue
Yellow
Orange
