Name: ________________________ Class: ___________________ Date: __________
Grade 7 Science - Plants Quiz Topics 1-3
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1.
Which of the following is not one of the seven major food crops?
____
____
____
____
a.
A) sorghum
c.
C) oats
b.
B) barley
d.
D) cassava
2. Which of the following is not a remedy for pain?
a.
A) aspirin
c.
C) quinine
b.
B) codeine
d.
D) morphine
3. Plants release which of the following substances?
a.
A) water
c.
C) carbon dioxide
b.
B) oxygen
d.
D) All of the above
4. Which process do plants use to remove carbon dioxide from the air?
a.
A) transpiration
c.
C) photosynthesis
b.
B) respiration
d.
D) diffusion
5. Water is pushed up the plant by which of the following processes?
a.
A) osmosis
c.
C) respiration
b.
B) transpiration
d.
D) A and B
1
ID: A
Name: ________________________
____
ID: A
6. In an interview with aliens, Charlee was asked to explain, scientifically, the difference between a
carrot and a lettuce plant. Which of the following would not be an accurate description.
____
____
____
a.
A) A carrot has a taproot and a lettuce c.
plant has a fibrous root system.
C) The roots make up 60 – 80 % of
the carrot. The leaves make up 60 –
80 % of the lettuce plant
b.
B) Carrots take in water through
osmosis and lettuce plants take in
water through transpiration
D) Carrots store water in their roots.
Lettuce plants store water in their
leaves.
d.
7. Organisms containing chlorophyll produce food through which of the following processes?
a.
A) osmosis
c.
C) photosynthesis
b.
B) transpiration
d.
D) germination
8. Which of the following is not a function of stems?
a.
A) transpiration
c.
C) transportation of nutrients
b.
B) support
d.
D) storage
9. Misha noticed that roots have the following functions:
I. Absorption of water and minerals.
II. Support and anchoring of the plant.
III. Food storage.
Which of these functions will help the plant in times of scarcity?
a.
A) I
c.
C) III
b.
B) II
d.
D) all of the above
____ 10. What is a function of roots?
a.
A) To keep the soil together.
c.
C) To release excess water from the
plant.
b.
B) To keep carbon dioxide from
sliding down slopes.
d.
D) A and B
2
Name: ________________________
ID: A
____ 11. Which of the following is the growing part of the tree stem?
a.
A) xylem
c.
C) bark
b.
B) phloem
d.
D) cambium
____ 12. When do guard cells swell to open the stomata?
a.
A) When water is plentiful to slow the c.
gas exchange needed for
photosynthesis.
C) When water is plentiful to increase
the gas exchange needed for
photosynthesis.
b.
B) When water is scarce to slow the
gas exchange needed for
photosynthesis.
D) When water is scarce to increase
the gas exchange needed for
photosynthesis.
d.
____ 13. Which part of the plant is responsible for absorbing water?
a.
A) roots
c.
C) leaves
b.
B) stems
d.
D) flowers
____ 14. Where does most photosynthesis occur?
a.
A) roots
c.
C) leaves
b.
B) stems
d.
D) flowers
____ 15. A plant researcher was able to take a gene from a bacterium and add it to a potato. This process
helped the plant by repelling pests that normally eat the potato plant. What do we call this type of
technology?
a.
A) selective breeding
c.
C) layering
b.
B) asexual reproduction
d.
D) genetic modification
3
Name: ________________________
ID: A
Short Answer
16.
Word Bank:
Sepal, Chloroplast, Petal, Stigma, Photosynthesis, Receptacle, Receptional, Stamen, Peduncle, Filament,
Pistil, Anther, Flower, Cotyledon, Jelly, Osmosis, Ovary.
4
ID: A
Grade 7 Science - Plants Quiz Topics 1-3
Answer Section
MULTIPLE CHOICE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
C
C
D
C
A
B
C
A
C
A
D
C
A
C
D
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
SHORT ANSWER
16. ANS:
1. Petal
2. Ovary
3. Stigma
4. Pistil
5. Anther
6. Filament
7. Stamen
8. Peduncle
9. Receptacle
10. Sepal
PTS: 1
1