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WorksheetsLeaf Structure
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
The leaf has a shiny, waxy cuticle around it to
a)
increase the rate of photosynthesis
b)
attract more light
c)
control water loss
d)
stop carbon dioxide and oxygen gases escaping
2.
Most of the chloroplast cells are found in the
a)
upper epidermis
b)
pallisade mesophyll layer
c)
lower epidermis
d)
stomata
3.
The water needed for photosynthesis comes into the leaves through the
a)
upper epidermis
b)
stomata
c)
guard cells
d)
xylem cells
4.
The important gases, carbon dioxide and oxygen, enter and leave the leaf through the
a)
upper epidermis
b)
phloem
c)
stomata
d)
guard cells
5.
The reactants needed for photosynthesis to occur are:
a)
carbon dioxide & water
b)
carbon dioxide & oxygen
c)
oxygen & water
d)
carbon dioxide, oxygen & water
6.
The role of the guard cell is to
a)
help control the temperature of the plant
b)
control how much water enters the leaf
c)
control how much glucose is stored
d)
control the movement of water vapour & gases
7.
Plants need to take in oxygen gas for respiration
a)
only at night
b)
only during the day
c)
both during the day & the night
8.
Transpiration helps the plant
a)
make more sugars at night
b)
move water from the roots to the stem and leaves
c)
move sugars from the leaf to be stored in the stem & roots
d)
make more chloroplasts
9.
Water & soluble nutrients move through the plant in
a)
the phloem cells
b)
the xylem cells
c)
the root hair cells
d)
palisade mesophyll layer
10.
Sugar and the products of photosynthesis move through the plant in
a)
the phloem cells
b)
the xylem cells
c)
the root hair cells
d)
palisade mesophyll layer
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