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photosynthesis for 7th grade

Total questions: 27

Worksheet time: 14mins

Name
Class
Date
1.

An organism that can make its own food

a)

autobot

b)

heterotroph

c)

autotroph

d)

heterobot

2.

An organism that cannot make its own food.

a)

autobot

b)

heterotroph

c)

autotroph

d)

heterobot

3.

The raw materials of a chemical reaction. Located on the left side of a chemical equation.

a)

water

b)

energy

c)

resources

d)

reactants

4.

The 'outputs' of a chemical reaction. Located on the right side of a chemical equation.

a)

products

b)

produce

c)

consumers

d)

detritis

5.

Small openings on the underside of a leaf through which oxygen and carbon dioxide can move. Where gas exchange occurs in a plant.

a)

nodules

b)

stomata

c)

chloroplasts

d)

chlorophyll

6.

Location inside of a plant cell where the process of photosynthesis occurs.

a)

nodules

b)

stomata

c)

chloroplasts

d)

chlorophyll

7.

Pigment which 'fills' chloroplast. This pigment absorbs sunlight.

a)

nodules

b)

stomata

c)

chlorine

d)

chlorophyll

8.

A simple sugar that is an important energy source in living organisms

a)

stevia

b)

fructose

c)

glucose

d)

glycerin

9.

A process plants use to turn sunlight into food: Conversion of light energy from the sun into chemical energy (stored in glucose).

a)

toxoplasmosis

b)

photosynthesis

c)

aqua-synthesis

d)

homeosynthesis

10.

A gas that plants release during photosynthesis

a)

oxygen

b)

methane

c)

propane

d)

carbon dioxide

11.

A gas that plants take in through small holes in their leaves for the process of photosynthesis.

a)

oxygen

b)

methane

c)

propane

d)

carbon dioxide

12.

Taken in by the leaves of the plant to give the chloroplasts energy for food production.

a)

chlorophyll

b)

oxygen

c)

water

d)

sunlight

13.

A product in photosynthesis

a)

CO2

b)

O2

c)

H2O

d)

heat

14.

A reactant in Photosynthesis

a)

PB

b)

NACL

c)

H20

d)

CO2

15.

glucose, also known as sugar

a)

ARETMIS1

b)

fructose

c)

C6H12O6

d)

C3POR2D2

16.

What is the science word for turning sunlight into food?

a)

Photosynthesis

b)

Cellular Respiration

c)

Decomposition

17.

A producer is a group of parts that work together to do a job.

So a producer is a ____.

a)

Component

b)

Function

c)

System

d)

Input

e)

Output

18.

The producer's job is turning sunlight into food.

Turning sunlight into food is a producer's ___.

a)

Component

b)

Function

c)

System

d)

Input

e)

Output

19.

Sunlight, water, and Carbon Dioxide go INTO a producer.

Sunlight, water, and Carbon Dioxide are ____.

a)

Component

b)

Function

c)

System

d)

Input

e)

Output

20.

Which 3 are Inputs for photosynthesis?

(Pick 3)

a)

Carbon Dioxide

b)

Oxygen

c)

Water

d)

Sugar

e)

Sunlight

21.

The gas that plants breathe in is called ____.

a)

Carbon Dioxide

b)

Oxygen

c)

Nitrous Oxide

22.

Chlorophyll is the PART of a producer that absorbs sunlight.

Chlorophyll is a ____.

a)

Component

b)

Function

c)

System

d)

Input

e)

Output

23.

Sugar and Oxygen come OUT of a producer.

Sugar and Oxygen are ____.

a)

Component

b)

Function

c)

System

d)

Input

e)

Output

24.

Which 2 are outputs for photosynthesis?

(Pick 2)

a)

Carbon Dioxide

b)

Oxygen

c)

Water

d)

Sugar

e)

Sunlight

25.

The sugar plants produce is called ____.

a)

Glucose

b)

Fructose

c)

Lactose

26.

After the plant produces glucose, ___.

a)

It must be used right away.

b)

It must be stored for 3 months before it is used.

c)

It can be used right away or stored for later.

27.

The gas that plants breathe out is called ____.

a)

Carbon Dioxide

b)

Oxygen

c)

Nitrous Oxide