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Photosynthesis_Respiration

Total questions: 25

Worksheet time: 16mins

Name
Class
Date
1.
Plants need ________from the air for photosynthesis
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
2.
Which statement about photosynthesis is correct?
a)
Plants get the energy they need for photosynthesis from water.
b)
Plants get the energy they need for photosynthesis from soil.
c)
Plants get the energy they need for photosynthesis from sunlight.
d)
Plants do not require energy to perform photosynthesis.
3.
What do plants give off after photosynthesis?
a)
Oxygen
b)
carbon
c)
nitrogen
d)
hydrogen
4.

BLANK and BLANK create Glucose and Oxygen in plants during photosynthesis.

a)

Nitrogen and Water

b)

Carbon Dioxide and Water

c)

Sunlight and Phosphorus

d)

Sunlight and ATP

5.
In what part of the cell does photosynthesis occur?
a)
Nucleus
b)
Chloroplast
c)
Epidermis
d)
Vacuole
6.
What molecule absorbs sunlight during photosynthesis?
a)
Epidermis
b)
thylakoid
c)
the leaf
d)
chlorophyll
7.
After photosynthesis, plants store their energy as _________ .
a)
chlorophyll
b)
pigment
c)
glucose (sugar)
d)
Oxygen
8.

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

9.
Why do plants conduct photosynthesis?
a)
To make light
b)
To make mitochondria
c)
To make glucose
d)
To release carbon dioxide
10.
What major energy transformation occurs during photosynthesis?
a)
Thermal --> Chemical
b)
Kinetic --> Radiant
c)
Chemical --> Radiant
d)

Light --> Chemical

11.
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
12.

When light intensity goes up, the rate of photosynthesis goes _______.

a)

up

b)

down

c)

at the same rate. It does not change.

13.
Which of the following statement is true regarding photosynthesis
a)
creates oxygen for animals to breath
b)
creates energy for consumers to use
c)
creates food for plants to use
d)
all of these are correct
14.
Which of the following examples go through the process of photosynthesis?
a)
bees
b)
algae
c)
humans
d)
mushrooms
15.
What is the chemical formula for glucose?
a)
C6H12O6
b)
C6H6O12
c)
C12H6O12
d)
C6O2H6
16.

Which of the following equations represents the overall chemical reaction for photosynthesis?

a)

6O2+ 6H2O → C6H12O6+ 6O2

b)

C6H12O6 + 6H2O→ 6O2+ 6O2

c)

6CO2+ 6H2O→ C6H12O6+ 6O2

d)

6O2 + 6H2O→ C6H12O6 + 6CO2

17.

Glucose is a ... (choose all answers)

a)
sugar
b)

carbohydrate (Carbon and Hydrogen and Oxygen)

c)
source of quick energy
d)

starch

18.

Why are plants important to life on Earth? (multiple answers)

a)
They use carbon dioxide and give us oxygen
b)

They provide habitats for countless species

c)

They are at the start of Food Chain of all animals

d)

They also regulate the climate by absorbing carbon dioxide

e)

They prevent destruction of soil

19.
In which organism(s) does photosynthesis occur?
a)
plants
b)
algae
c)
some bacteria
d)
all of these
20.
What gas is needed in order to perform respiration at the cellular level?
a)
oxygen
b)
carbon dioxide
c)
hydrogen
d)
nitrogen
21.
In which part of the cell does respiration occur?
a)
vacuole
b)
mitochondria
c)
cell wall
d)
chloroplast
22.
How do animals get the carbon that they need?
a)
from the air
b)
from water
c)
from the soil
d)
from their food
23.

If the lights are left on, in which test tube would you expect to see the most CO2 after the experiment?

a)

A

b)

B

c)

C

d)

D

24.

If the lights are turned off, in which test tube(s) would respiration be taking place? Choose all correct answers.

a)

A

b)

B

c)

C

d)

D

25.

What results would you expect with one snail, one elodea, and the lights on?

a)

The amount of CO2 and O2 would stay about the same.

b)

The amount of CO2 would increase and O2 would decrease

c)

The amount of CO2 would decrease and O2 would increase

d)

The amount of CO2 and O2 would both decrease