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Cross section of leaf

Total questions: 29

Worksheet time: 18mins

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 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.
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
6.

What is the name of the elongated, packed cells (part G) directly under the upper epidermis?

a)

Palisade cells

b)

Guard cell

c)

Spongy layer

d)

Lower epidermis

7.

What is letter "A" pointing to?

a)

cuticle

b)

upper epidermis

c)

lower epidermis

d)

palisade mesophyll

8.

What is letter "D" pointing to?

a)

upper epidermis

b)

palisade mesophyll

c)

spongy mesophyll

d)

bundle sheath

9.
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
10.
Most of the chloroplast cells are found in the
a)
upper epidermis
b)
pallisade mesophyll layer
c)
lower epidermis
d)
stomata
11.
The important gases, carbon dioxide and oxygen, enter and leave the leaf through the
a)
upper epidermis
b)
phloem
c)
stomata
d)
guard cells
12.
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 
13.
The important gases, carbon dioxide and oxygen, enter and leave the leaf through the
a)
upper epidermis
b)
phloem
c)
stomata
d)
guard cells
14.
The water needed for photosynthesis comes into the leaves through the
a)
upper epidermis
b)
stomata
c)
guard cells
d)
xylem cells
15.

What is the function of the structure labeled A in the diagram?

a)

intake of water

b)

intake of gases for photosynthesis

c)

intake of minerals for plant growth

d)

intake of sugar for energy

16.

Which of these structures control the closing and opening of the part labeled A?

a)

cuticle

b)

stigma

c)

epidermis

d)

guard cells

17.
Which organelle does photosynthesis take place in?
a)
Mitochondrion
b)
Chloroplast
c)
Cytoplasm
d)
Nucleus
18.
The important gases, carbon dioxide and oxygen, enter and leave the leaf through the
a)
upper epidermis
b)
phloem
c)
stomata
d)
guard cells
19.
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
20.
Most of the chloroplast cells are found in the
a)
upper epidermis
b)
pallisade mesophyll layer
c)
lower epidermis
d)
stomata
21.
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 
22.

What is letter "A" pointing to?

a)

cuticle

b)

upper epidermis

c)

lower epidermis

d)

palisade mesophyll

23.

What is letter "D" pointing to?

a)

upper epidermis

b)

palisade mesophyll

c)

spongy mesophyll

d)

bundle sheath

24.
The reactants needed for photosynthesis to occur are:
a)
carbon dioxide & water
b)
carbon dioxide & oxygen
c)
oxygen & water
d)
carbon dioxide, oxygen & water
25.

What's the main function of the leaf?

a)

Absorb Sunlight

b)

Make Food

c)

Attract Insects

d)

Move Water and Minerals

26.

In which organelle does photosynthesis occur?

a)

Cell Wall

b)

Chlorophyll

c)

Chloroplast

d)

Cytoplasm

27.

The outermost layer of CELLS of the leaf is the

a)

cuticle

b)

epidermis

c)

spongy mesophyll

d)

bundle sheath

28.

Most of the photosynthesis in a leaf occurs in the

a)

mesophyll layer (palisades and spongy layers).

b)

epidermis.

c)

xylem and phloem.

d)

stomates.

29.

This layer protects the leaf.

a)

palisade

b)

spongy

c)

epidermis

d)

cuticle

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