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WorksheetsBiology_07_Nutrition in Plants
Total questions: 20
Worksheet time: 11mins
In which organelle does photosynthsis take place in?
Chlorophyll
Chloroplast
Mitochondria
Nucleus
Which statement is true about stomata?
It is completely closed at night
It only opens in the presence of light
It's opening and closing is controlled by a pair of guard cells
Which statement is true about guard cells
Guard cells have chloroplasts. They control the opening and closing of the stomata
Guard cells do not have chloroplasts. They control the opening and closing of the stomata
Which statement about the internal structure of the leaf is true
There are less chloroplasts in the palisade mesophyll than spongy mesophyll
All cells in the leaf have chloroplasts
There is a thin film of moisture surrounding the spongy mesophyll
There are more stomata on the top side of the leaf than the under side.
Which statement correctly dscribes how the leaf is adapted for photosynthesis?
It has a thin lamina that provides a lage surface area to absorb maximum sunlight
It has phloem that transports food from the rest of the plant to the leaf
It has a petiole that holds the leaf in position to absorb maximum sunlight
It has a waxy cuticle that is thin and allows a short diffusion distance for gases to reach all mesophyll cells
Which are factors affecting the rate of photosynthesis? (There are 3 correct answers)
Oxygen concentration
Carbon dioxide concentration
Temperature
Light intensity
The diagram shows a plant cell. Which energy conversion happens in structure X?
chemical energy to light energy
heat energy to chemical energy
heat energy to light energy
light energy to chemical energy
In which tissue/cells does photosynthesis NOT take place?
epidermis
palisade mesophyll
spongy mesophyll
guard cells
A plant has variegated leaves. After placing the leaf under sunlight for 12 hours, the leaf is cue into portions 1-4. These leaf portions are tested for starch. In which portion of the leaf is starch found?
1 only
1 and 2
2 only
3 and 4
State the name of structure 1
(a)
State the name of structure 5
(a)
State the name of structure 3
(a)
State the name of structure 2
(a)
What is the limiting factor(s) of photosynthesis at region 1 of the graph?
light intensity
carbon dioxide concentration
temperature
light intensity
Which statement is true at part 2 of the graph?
light intensity is a limiting factor
light intensity is no longer the limiting factor
How does carbon dioxide enter the leaf?
Carbon dioxide enters by osmosis through the stomata of the leaf
Carbon dioxide enters by diffusion through the stomata of the leaf
Carbon dioxide enters by dissolving through the guard cells of the leaf
Carbon dioxide enters by diffusing through the guard cells of the leaf
Glucose made by the leaf will be converted into ____________ for transport around the plant
fructose
starch
sucrose
glucose
Glucose made by the leaf will be converted into ____________ for storage in the plant
fructose
starch
sucrose
glucose
Which is NOT a fate of glucose in the leaf?
Glucose is converted into fats
Glucose is converted into amino acids
Glucose is converted into cellulose
Glucose is converted into glycogen
