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WorksheetsLEAF STRUCTURE AND FUNCTION
Total questions: 7
Worksheet time: 4mins
K, L, M, N and O are some of the internal structures of a leaf.
K - Guard cell
L - Companion cell
M - Lower epidermis cell
N - Spongy mesophyll cell
O - Palisade mesophyll cell
Which structures can carry out photosynthesis?
K, L, M and N
K, L, N and O
K, M, N and O
K, L, M and O
Which of the following statements about respiration in plants is true?
Respiration occurs only in the daytime
Only green plants carry out respiration
Cellular respiration involves oxidation of food
Respiration occurs only at night
Diagram shows a pair of guard cells and the stoma.
Which parts labelled A, B, C or D is responsible for the opening and closing of the stoma?
A
B
C
D
What is the purpose of plucking the leaves from a seedling before transferring it from the nursery to an orchard?
To reduce the rate of respiration
To reduce the rate of photosynthesis
To reduce the rate of water absorption
To reduce the rate of transpiration
Which of the following is produced during the light-dependent reaction of photosynthesis?
ATP
Oxygen
Glucose
Carbon dioxide
The graph shows the effect of light intensity on the rate of photosynthesis.
What can be concluded about the rate of photosynthesis for curves J and K?
It is not influenced by the concentration of carbon dioxide
It is limited by the concentration of carbon dioxide
It is limited by the light intensity
It is not influenced by the temperature
Which of the following refers to compensation point?
The rate of respiration is lower than the rate of photosynthesis
The rate of respiration is higher than the rate of photosynthesis
The rate of respiration is the same as the rate of photosynthesis
The rate of respiration increases and the rate of photosynthesis does not change
