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Worksheetsม4 Leaf Structure & Function
Total questions: 11
Worksheet time: 7mins
Name
Class
Date
1.
Most of the chloroplast cells are found in the
a)
upper epidermis
b)
pallisade mesophyll layer
c)
lower epidermis
d)
stomata
2.
The water needed for photosynthesis comes into the leaves through the
a)
upper epidermis
b)
stomata
c)
guard cells
d)
xylem cells
3.
The important gases, carbon dioxide and oxygen, enter and leave the leaf through the
a)
upper epidermis
b)
phloem
c)
stomata
d)
guard cells
4.
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
5.
Which structure helps prevent water loss and protects the leaf?
a)
Palisades mesophyll
b)
Spongy mesophyll
c)
Vascular tissue
d)
Cuticle
6.
The column-like cells that lie directly underneath the epidermis makes up the
a)
spongy mesophyll
b)
palisade mesophyll
c)
cuticle
d)
bundle sheath
7.
Which of the following is pointing to the "guard cell"?
a)
B
b)
C
c)
D
d)
E
8.
The outermost layer of CELLS of the leaf is the
a)
cuticle
b)
epidermis
c)
spongy mesophyll
d)
bundle sheath
9.
This layer of cells is where photosynthesis occurs within the leaf; there are air spaces within this layer
a)
spongy mesophyll
b)
palisade mesophyll
c)
chloroplast
d)
upper epidermis
10.
thin stalk that connects the blade of the leaf to the plant's stem
a)
blade
b)
cuticle
c)
petiole
d)
epidermis
11.
Most of the chloroplast cells are found in the
a)
upper epidermis
b)
pallisade mesophyll layer
c)
lower epidermis
d)
stomata
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