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Photosynthesis

Total questions: 22

Worksheet time: 15mins

Name
Class
Date
1.

Which organelle in a plant cell is responsible making food (Glucose) using sunlight?

a)

Ribosomes

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

2.

Select all that are products (outputs) of Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

3.

What is the green pigment that "traps" sunlight?

a)

Chlorophyll

b)

Chloroplasts

c)

Photosynthesis

d)

ATP

4.

How does most of the water needed by the plant get into its leaves?

a)

It enters through the stomata

b)

The roots absorb it and then it travels up the xylem

c)

It's made during a chemical reaction in the stem

d)

The flowers capture water and deliver it to the leaves

5.

Why do plants perform photosynthesis?

a)

To make light

b)

To make mitochondria

c)

To transform light energy into chemical energy (sugar)

d)

To release carbon dioxide

6.
What major energy transformation occurs during photosynthesis?
a)
Thermal --> Chemical
b)
Kinetic --> Radiant
c)
Chemical --> Radiant
d)
Radiant --> Chemical
7.
How does carbon dioxide get into the leaves of a plant?
a)
It's absorbed by the roots
b)
It's made in a chemical reaction in the stem
c)
It enters through the stomata
d)
It goes through the flowers
8.
What is the source of energy for photosynthesis?
a)
Carbohydrates (chemical energy)
b)
Light (radiant energy)
c)
Heat (thermal energy)
d)
Wind (kinetic energy)
9.
Which of these conditions would decrease the rate of photosynthesis in a plant?
a)
Above average precipitation
b)
Changing the daylight hours from 14 hrs to 10 hrs
c)
Changing the CO2 concentration from 380 ppm to 410 ppm
d)
All of these choices
10.
Which choice correctly shows the gases that enter and exit plants during photosynthesis?
a)
Enter: Oxygen
Exit: Carbon dioxide
b)
Enter: Water vapor
Exit: Glucose
c)
Enter: Carbon dioxide
Exit: Oxygen
d)
Enter: Light
Exit: Water vapor
11.

Which of the following is the correct equation for PHOTOSYNTHESIS?

a)

CO2 + H2O + sunlight--> O2 + Sugar

b)

CO2 + sugar + H2O --> O2 + light

c)

O2 + light + H2O --> CO2 + Sugar

d)

CO2 + O2 + H2O --> Light+ Sugar

12.

Most plants appear green because chlorophyll

a)

absorbs green light.

b)

absorbs violet light.

c)

reflects green light.

d)

does not absorb violet light.

13.

Where does the matter come from that builds the wood, leaves, and roots of the tree?

a)

hydrogen

b)

oxygen

c)

nitrogen

d)

carbon dioxide

14.

Select the correct term for the following definition:

"The water transport system in plants."

a)

Villi

b)

Bronchi

c)

Bolus

d)

Xylem

15.

Select the correct term for the following definition:

"The nutrient transport system in plants."

a)

Enzyme

b)

Guard cells

c)

Phloem

d)

Proteins

16.

Recall the main funtion of a phloem cell.

a)

To transport nutrients (mainly sugar) to different parts of a plant.

b)

To transport water to different parts of a plant.

c)

To make energy for the plant via photosynthesis.

d)

To provide structural support to a plant.

17.
Xylem cells transport _______, Phloem cells transport ______.
a)
Glucose, Water
b)
Glucose, Minerals
c)
Oxygen, Water
d)
Water, Glucose
18.
The formula for glucose is...
a)
C12 H22 O11
b)
NaCl
c)
NaOH
d)
C6 H12 O6
19.

Chlorophyll absorbs ________ light the best.

a)

red - blue

b)

yellow

c)

green

d)

light greens

20.

According to the graph, which of the following has the most energy?

a)

CO2 and H2O

b)

Sugar and O2

c)

CO2 and Sugar

d)

H2O and Sugar

21.

According to the graph, which of the following has the least amount of energy?

a)

CO2 and H2O

b)

Sugar and O2

c)

CO2 and Sugar

d)

H2O and Sugar

22.

Select 2 reactants (inputs) of Photosynthesis

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Glucose (Sugar/food)