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Photosynthesis Gizmo

Total questions: 15

Worksheet time: 30mins

Name
Class
Date
1.
___ is a simple sugar that plants use for energy and as a building block for larger molecules.
a)
glucose
b)
photosynthesis
c)
carbon dioxide
d)
chlorophyll
2.
A green pigment that absorbs lights and converts its energy into a form that the plant can use:
a)
glucose
b)
photosynthesis
c)
carbon dioxide
d)
chlorophyll
3.

You can monitor the rate of photosynthesis by measuring which of the following?

a)

Temperature

b)

Light intensity

c)

CO2 level

d)

Oxygen flow

4.

During the Gizmo, what light color was LEAST productive for photosynthesis?

a)

red

b)

blue

c)

green

d)

yellow

5.

What are the products of photosynthesis?

a)

glucose, oxygen

b)

sunlight, carbon dioxide, oxygen

6.

Which of the following can be used to measure the rate of photosynthesis?

a)

light intensity (%)

b)

oxygen production (mL/hr)

c)

temperature

d)

CO2 level

7.

According to the graph below, what temperature will result in the highest rate of photosynthesis?

a)

5°C

b)

25°C

c)

30°C

d)

40°C

8.
What is the chemical formula for water?
a)
H2O
b)
HO2
c)
CHO2
d)
CO2H
9.
What is the chemical formula for carbon dioxide?
a)
H2O
b)
CO2
c)
CHO2
d)
CO2H
10.
What is the chemical formula for oxygen?
a)
H12O2
b)
C6O2
c)
O3
d)
O2
11.

Which is the correct formula for photosynthesis?

a)

6CO2 + 6H2O (sunlight) ---> C6H12O6 + 6O2

b)

sunlight + CO2 + H2O ---> C6H12O6 + O2

c)

C6H12O6 +6 O2 ---> (sunlight) 6CO2 + 6H2O

d)

6CO2 + 6H2O ---> C6H12O6 + 6O2 + sunlight

12.
What is the chemical formula for glucose?
a)
C6H12O6
b)
C6H6O12
c)
C12H6O12
d)
C6O2H6
13.

Why are plants usually green?

a)

Because the chlorophyll reflects green light

b)

Because the chlorophyll absorbs green light

c)

Because the accessory pigments combine to make green

d)

Because the accessory pigments only absorb green light

14.

Which of the following are limiting factors for photosynthesis?

a)

water

b)

light

c)

carbon dioxide

d)

temperture

e)

All of the above

15.

What does the word "ideal" mean?

a)

worst

b)

best

c)

smart

d)

unique