Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Biology Grade 8
Test Description: Biology grade 8
Instructions: Answer all questions to get your test result.
1) What is autotroph
A
All
B
Organism that produces it's own food
C
None
D
Is dependent on another source
2) What is photosynthesis
A
It causes a chemical reaction using light energy
B
All
C
Plants make their own food
D
None
3) Photo means _____ Synthesis means ______
A
None
B
Photo - light
C
Synthesis - putting together
D
All
4) Raw materials
A
Carbon dioxide
B
Water
C
All
D
Comes from the air and soil
5) Clhorplasts
A
Found in the energy of sunlight
B
None
C
Contains chlorophyll (found in plants)
D
Found in trees
6) What does Chlorophyll do
A
Absorbs energy from the sun
B
None
C
All
D
Allows carbon dioxide and water to react
7) Glucose is useful for _____
A
Plants
B
some converted to starch for storage and used later
C
Some of it is used straight away
D
All
8) What is oxygen
A
A waste product
B
None
C
It transports out of leaves into the air
D
All
9) Photosynthesis is used to convert
A
carbon dioxide
B
and water into glucose
C
and oxygen
D
All
10) Maximation
A
Leaves comes in all shapes and sizes but have common features
B
All
C
Light energy is absorbed by chlorophyll
D
Leaves are the most efficient solar panels on earth
11) Factors of a leave
A
As much light as possible
B
All
C
They are wide and flat
D
This creates a large surface to absorb
12) Factors of a leave
A
Has lots of veins to carry water to the cells
B
They are thin for gases to reach them easily
C
And carries glucose away
D
All
13) Factors of a leave
A
None
B
It has holes called stomata
C
All
D
where gases move in and out
14) Factors of a leave
A
The rate varies depending on 3 main factors
B
All
C
Photosynthesis is a chemical reaction
D
Light, carbon dioxide and temperature
15) Light and Rate
A
Light energy has to be absorbed by chlorophyll
B
none
C
all
D
for photosynthesis to take place
16) Light and rate
A
None
B
Brighter more energy
C
All
D
More light faster
17) Carbon Dioxide is used by plants for
A
the concentration is low (0.03%)
B
All
C
food
D
None
18) Photosynthesis works best
A
In warm temperatures
B
It is also controlled by enzymes
C
None
D
All
19) What is a limiting factor - What is the ideal combination of factors for the maximum rate photosynthesis
A
none
B
Ideal temperature
C
Enough light, Carbon dioxide
D
All
20) What is a limiting factor - What is the ideal combination of factors for the maximum rate photosynthesis
A
The restricted factor controls how quickly photosynthesis occurs
B
It limits the rate
C
All
D
If one is restricted the rate will be below maximum possible rate
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?