WorksheetsPlants year 7
Total questions: 20
Worksheet time: 23mins
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)
palisade 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 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
6.
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
7.
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
8.
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
9.
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
10.
What is the name of the clear layer of cells (H) on top of the leaf?
a)
Cuticle
b)
Air space
c)
Guard cell
d)
Upper epidermis
11.
What is the name of cells (part D) that surround the pores of a leaf?
a)
Palisade cells
b)
Guard cell
c)
Spongy layer
d)
Lower epidermis
12.
If guard cells are swollen with water, then the are more likely to be ...
a)
OPEN with stomata
b)
CLOSED with no stomata
c)
Cannot tell - the water amount doesn't affect it at all.
13.
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
14.
In a chemical equation, which is true?
a)
reactants--> products
b)
products--> reactants
15.
Which cells of a leaf undergo the MOST photosynthesis?
a)
Guard cells
b)
Palisade cells
c)
Epidermal cells
d)
Cells in the spongy layer
16.
What is chlorophyll's main function?
a)
to make the plant a vegetable
b)
to blend into their environment
c)
to capture energy from sunlight for photosynthesis
d)
to help prevent water loss
17.
Plants need ________ as a reactant for photosynthesis.
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
18.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
19.
What is letter "A" pointing to?
a)
cuticle
b)
upper epidermis
c)
lower epidermis
d)
palisade mesophyll
20.
What is letter "D" pointing to?
a)
upper epidermis
b)
palisade mesophyll
c)
spongy mesophyll
d)
bundle sheath
100 %
