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Photosynthesis

Total questions: 60

Worksheet time: 15hrs 0mins

Name
Class
Date
1.

2. What gas goes into the plant during photosynthesis?

a)

Oxygen

b)

Nitrogen

c)

Carbon dioxide

d)

Hydrogen

2.

3. What does a plant release into the air after photosynthesis?

a)

Carbon dioxide

b)

Sugar

c)

Oxygen

d)

Energy

3.

4. Most plant appear green because of _________________ .

a)

oxygen

b)

chlorophyll

c)

carbon dioxide

d)

water

4.

6. Where do plants get the energy for photosynthesis to take place?

a)

Nutrients in the soil

b)

The Sun

c)

Pollination

d)

Chlorophyll

5.

7. TRUE or FALSE: Plants make their own food and use the energy from the food that is made.

a)

True

b)

False

6.

8. Which of the following is NOT needed for plants to survive?

a)

Sunlight

b)

Pestisides

c)

Carbon dioxide

d)

Water

7.

9. What are the 3 main ingredients needed for photosynthesis

a)

glucose, oxygen, carbon dioxide

b)

carbon dioxide, water, glucose

c)

water, soil, sunlight

d)

sunlight, water, carbon dioxide

8.

10. Which of the following statement is true regarding photosynthesis

a)

creates oxygen for animals to breath

b)

creates energy for plants to use

c)

creates food for plants to use

d)

all of these are correct

9.
The process of converting sunlight energy into chemical energy stored in a molecule is called
a)
Cellular respiration
b)
Photosynthesis
c)
Mitochondria
d)
Carbon dioxide
10.
Photosythesis happens in a cell's 
a)
Mitochondria
b)
Chloroplast
c)
Nucleus
d)
Cell Wall
11.

Which plant structure transforms light into glucose?

a)

Chromoplasts

b)

Leukoplasts

c)

Chloroplasts

d)

Neuroplasts

12.
Oxygen is...
a)
A product of photosynthesis and cellular respiration
b)
A reactant of photosynthesis and cellular respiration
c)
A product of photosynthesis and a reactant of cellular respiration
d)
A reactant of photosynthesis and a product of cellular respiration
13.
Organisms that cannot make their own food and must obtain energy from external sources are called
a)
autotrophs
b)
heterotrophs
c)
thylakoids
d)
plants
14.
What is an autotroph?
a)
an organism that can make their own food. 
b)
an organism that cannot make their own food
c)
Herbivore
d)
Omnivore
15.
Plants need carbon dioxide from their environment to produce glucose during which stage of photosynthesis? 
a)
The light-dependent stage
b)
The light-independent stage 
c)
The electron transport chain
d)
ATP formation
16.

Which structure in the figure above represents a single thylakoid?

a)

Structure A

b)

Structure B

c)

Structure C

d)

Structure D

17.

If carbon dioxide is completely removed from a plant's environment, what would you expect to happen to the plant's production of high-energy sugars?

a)

More sugars will be produced.

b)

The same number of sugars will be produced but without carbon dioxide.

c)

No sugars will be produced.

d)

Fewer sugars will be produced at first, but then the plant will recover.

18.

Which chemical is an electron carrier molecule?

a)

NADP+

b)

H2O

c)

carbon dioxide

d)

oxygen

19.

What two energy molecules are made by the light reaction? Select both answers.

a)

NADPH

b)

glucose

c)

ATP

d)

oxygen gas

20.

Which molecule supplies chlorophyll with electrons

a)

sun

b)

water

c)

oxygen gas

d)

NADPH

21.

What are the 2 products shown this diagram? (select 2 correct)

a)

production of carbon dioxide

b)

production of oxygen gas

c)

production of sugar

d)

production of water

22.

What is the name of a stack of thylakoids?

a)

stroma

b)

chromoplast

c)

granum

d)

choloroplast 

23.

Chloroplasts and mitochondria are the same in that they both...

a)

are green in color.

b)

are found in plant and animal cells.

c)

have a liquid stroma.

d)

produce energy.

24.

The light reactions (those that need light to operate) are located in the...

a)

Chloroplast double membrane.

b)

Stroma

c)

Stomata

d)

Thylakoid membranes

25.

Which of the following is NOT a product of the light reactions?

a)

Oxygen

b)

NADPH

c)

ATP

d)

Glucose (Sugar)

26.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
27.

Photosynthesis is used to produce food for plants in the form of glucose. In the process, oxygen is released. As shown in the diagram, plants require water and carbon dioxide (from the air). What else is required for photosynthesis and what role does it play?

a)

Light is required to provide energy for photosynthesis.

b)

ATP is required as an energy source for photosynthesis.

c)

Glucose is required as an energy source for photosynthesis

d)

Oxygen is required to split water molecules in photosynthesis.

28.

What two things are the product (end result) of photosynthesis?

a)

Oxygen

b)

Glucose

c)

Chloroplasts

d)

Carbon Dioxide

29.

TRUE or FALSE: Animals can make their own food inside themselves.

a)

True

b)

False

30.

What is the waste product of photosynthesis?

a)

Oxygen

b)

Carbon Dioxide

c)

Glucose

d)

Chlorophyll

31.
Which sentence correctly describes photosynthesis. (assume there is enough sunlight)
a)
CO2 and water combine and make O2 and glucose
b)
O2 and water combine to make glucose and CO2
c)
O2 and CO2 combine to make water and glucose
d)
CO2 and glucose combine to make O2 and water
32.
The raw ingredients (reactants) of photosynthesis are sunlight along with ?
a)
CO2 and H20
b)
CO2 AND C6H12O6
c)
oxygen and water
d)
oxygen and CO2
33.
What is the opposite reaction of photosynthesis called?
a)
Cellular Respiration
b)
Fermentation
c)
Photosynthetic Process
d)
Non-photosynthesis
34.
Where does CO2 enter the leaves through?
a)
Roots
b)
Stem
c)
Chloroplasts
d)
Stomata
35.
Plants take in Oxygen to give us Carbon Dioxide to breathe.
a)
True
b)
False
36.
What are the reactants of photosynthesis?
a)
carbon dioxide and oxygen
b)
water and oxygen
c)
carbon dioxide and water
d)
water and glucose
37.

This is the chemical formula for a molecule of...

a)

Oxygen

b)

Carbon dioxide

c)

Glucose

d)

Water

38.

How many molecules of carbon dioxide are in the photosynthesis equation?

a)

1 molecule

b)

2 molecules

c)

6 molecules

d)

12 molecules

39.

How many molecules of water are in the photosynthesis equation?

a)

1 molecule

b)

2 molecules

c)

6 molecules

d)

12 molecules

40.

What side of the photosynthesis equation are the products of photosynthesis?

a)

right side

b)

left side

c)

over the arrow

41.

What side of the photosynthesis equation are the raw materials of photosynthesis?

a)

right side

b)

left side

c)

over the arrow

42.

How many molecules of glucose are in the photosynthesis equation?

a)

1 molecule

b)

2 molecules

c)

6 molecules

d)

12 molecules

43.

How many molecules of oxygen are in the photosynthesis equation?

a)

1 molecule

b)

2 molecules

c)

6 molecules

d)

12 molecules

44.

Glucose is a type of sugar. It is the "food" that is made during photosynthesis.

a)

True

b)

False

45.

Which product of photosynthesis is released into the air?

a)

carbon dioxide

b)

oxygen

c)

water vapor

d)

glucose

46.

What is CO2?

a)

carbon dioxide

b)

oxygen

c)

glucose

d)

water

47.

What is O2?

a)

carbon dioxide

b)

oxygen

c)

glucose

d)

water

48.

What is H2O?

a)

carbon dioxide

b)

oxygen

c)

glucose

d)

water

49.

What is C6H12O6?

a)

carbon dioxide

b)

oxygen

c)

glucose

d)

water

50.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
51.
What is the correct equation for photosynthesis?
a)
C6H12O6 + 6O2 --> 6CO2 + 6H2O
b)
6CO2 + 6O2 --> C6H12O6  + 6H2O
c)
 6CO2 + 6O2 --> 6H2O + C6H12O6
d)
6CO2 + 6H2O  -->  6O2 + C6H12O6
52.
Which of the following is an example of a HETEROTROPH?
a)
Grass
b)
Algae
c)
Lemon Tree
d)
Bear
53.

Which product is "waste" and mostly released by the producer (plant)?

a)

oxygen

b)

carbon dioxide

c)

sugar

d)

glucose

54.
What is the name of the simple sugar that is produced in photosynthesis?
a)
Sucrose
b)
Dextrose
c)
Glucose
d)
Lactose
55.

6CO2 + 6H2O ® C6H12O6 + 6O2

This chemical equation describes:

a)

Cellular respiration

b)

Glycolysis

c)

Photosynthesis

d)

Photolysis

e)

Electron Transport Chain

56.

Where does dark reaction or light independent specifically occur?

a)

thylakoid membrane

b)

Stroma of the chloroplast

c)

Grana

d)

nuclear membrane

57.

Where does light dependent specifically occur?

a)

thylakoid membrane of the grana

b)

Stroma of the chloroplast

c)

mitochondria

d)

nuclear membrane

58.

What is/are the products of light independent reaction?

a)

ATP

b)

NADPH

c)

H2O

d)

C6H12O6

e)

pyruvate

59.

What is NOT the product of light dependent reaction?

a)

ATP

b)

NADPH

c)

H2O

d)

O2

60.

Which of the following statements does not describe Light independent reaction?

a)

aka Calvin cycle

b)

Produce ATP and NADPH

c)

Produce glucose

d)

Occur in the stroma of the chloroplast

e)

Use ATP and NADPH for the reaction

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