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Photosynthesis

Total questions: 25

Worksheet time: 20mins

Name
Class
Date
1.

What are the 3 reactants of photosynthesis? The reactants are the things needed for photosynthesis to occur.

a)

oxygen, glucose, sunlight

b)

sunlight, oxygen, water

c)

water, oxygen, carbon dioxide

d)

carbon dioxide, sunlight, water

2.

What pigment captures/absorbs sunlight?

a)

stomata

b)

chlorophyll

c)

chloroplast

d)

phloem

3.

What is the tiny openings that let in the carbon dioxide needed for photosynthesis?

a)

stomata

b)

xylem

c)

phloem

d)

chloroplast

4.

Which organelle is responsible making food (Glucose) using sunlight?

a)

Cell Membrane

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

5.

Select all that are products of Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

6.

Which organelle stores water for use in photosynthesis?

a)

Chloroplast

b)

Cell Membrane

c)

Vacuole

d)

Nucleus

7.

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 stem

c)

It's made during a chemical reaction in the leaf

d)

The flowers capture water and deliver it to the leaves

8.
What molecule absorbs sunlight for photosynthesis?
a)
chloroplast
b)
thylakoid
c)
grana
d)
chlorophyll
9.
Most plants appear green because chlorophyll
a)
absorbs green light.
b)
absorbs violet light.
c)
does not absorb green light.
d)
does not absorb violet light.
10.
Plants need what to do photosynthesis?
a)
Food absorbed from ground
b)
Sun's energy
c)
Food broken down
d)
Minerals from the soil
11.
What gas goes into the plant before photosynthesis?
a)
Carbon Dioxide
b)
Carbon Monoxide
c)
Oxygen
d)
Nitrogen
12.
Which plant part collects the sun's energy and makes food?
a)
Leaf
b)
Stem
c)
Roots
d)
Flower
13.
Which of these is NOT A TRUE statement about why photosynthesis is important:
a)
It captures and makes the sun's energy available to all species
b)
It turns deadly CO2 into Oxygen for us to breath
c)
It helps plants create energy to send to rest of food chain
d)
It makes the water for our planet
14.
Which of these is NOT AN IMPACT photosynthesis has on an ecosystem:
a)
Oxygen for animals and humans to breathe
b)
Food for us to eat
c)
Taking CO2 out of the air
d)
Taking oxygen out of the air
15.

True or False: All plants need the same amount of sun to make enough food to be healthy

a)

true

b)

false

16.

True or False: Photosynthesis is responsible for the world's oxygen supply which is needed for animals to survive.

a)

true

b)

false

17.
__________ energy from the sun is changed intto __________ energy during photosynthesis
a)
Chemical energy to light energy
b)
Light energy to chemical energy
c)
Thermal energy to light energy
d)
Electrical energy to chemical enerfy
18.
What are the 3 key ingredients needed for photosynthesis
a)
glucose, oxygen, carbon dioxide
b)
carbon dioxide, water, glucose
c)
water, soil, sunlight
d)
sunlight, water, carbon dioxide
19.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
carbon dioxide + water --> oxygen + glucose
b)
carbon dioxide + glucose + water --> oxygen 
c)
oxygen + water --> carbon dioxide + glucose
d)
glucose+ oxygen ---> water + carbon dioxide 
20.
The fluid like substance found inside the chloroplast is called
a)
Cytoplasm
b)
Stroma
c)
Thykloids
d)
Cell Wall
21.
Which organelle does photosynthesis take place in?
a)
Mitochondrion
b)
Chlorplast
c)
Cytoplasm
d)
Nucleus
22.
What is the source of energy for photosynthesis?
a)
carbohydrates-chemical
b)
sunlight-radiant
c)
heat-thermal
d)
television-electrical
23.

Chlorophyll is:

a)

The substance that makes plants green.

b)

Found inside the chloroplast cells.

c)

Used to absorb energy from the sun.

d)

All of the above.

24.
Chloroplasts are...
a)
Structures of animal cells to produce ATP
b)
Organelles where lipids are elaborated
c)
Specialized structures of plants where food is made
d)
Waste organelle of plants
25.

Which part of a plant anchors the plant to the ground and soaks up water and minerals?

a)

stem

b)

leaves

c)

roots

d)

petals

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