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Photosynthesis

Total questions: 35

Worksheet time: 24mins

Name
Class
Date
1.

What is the primary pigment involved in photosynthesis?

a)

carbon dioxide

b)

chlorophyll

c)

chloroplasts

d)

stomata

2.

What is the equation for photosynthesis?

a)

H2O + CO2 → O2 + C6H12O6

b)

C6H12O6 + 6O2 → 6CO2 + 6H2O

c)

C6H12O6 + 6CO2 → 6H2O + light energy

d)

6CO2 + 6H2O + light energy → C6H12O6 + 6O2

3.

Where does photosynthesis occur in plants?

a)

Cytoplasm

b)

Chlorophyll

c)

Chloroplasts

d)

Mitochondria

4.

What is the main source of energy for photosynthesis?

a)

Water

b)

Glucose

c)

Carbon Dioxide

d)

Sunlight

5.

What is the role of chlorophyll in photosynthesis? Page 133

a)

Chlorophyll is responsible for the synthesis of water in photosynthesis

b)

Chlorophyll releases oxygen during photosynthesis

c)

Absorb light energy and convert it into chemical energy

d)

Chlorophyll helps in the breakdown of glucose

6.
Select all the "ingredients" needed for plants to engage in photosynthesis.
a)
sunlight
b)
water
c)
oxygen
d)

glucose

e)
carbon dioxide
7.
What part of a plant's cell contains chlorophyll?
a)

mitochondria

b)

cytoplasm

c)
nucleus
d)
chloroplast
8.

As part of the process of photosynthesis, water molecules are broken apart into hydrogen and oxygen atoms. Which atom is used by the plant to build the sugars that plants use for food?

(a)  

9.
What happens to the leftover oxygen?
a)
It is reabsorbed into the plant's cells.
b)
The plant uses it to breathe.
c)
It is released into the air.
d)
It is released by the roots into the soil.
10.
What do plants give off after photosynthesis?
a)
Oxygen
b)
carbon
c)
nitrogen
d)
hydrogen
11.
Plants need ________from the air for photosynthesis
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
12.
The products of photosynthesis are
a)
water and carbon dioxide
b)
oxygen and water
c)
sugar and cabon dioxide
d)
oxygen and sugar (glucose)
13.
Why are plants important to life on Earth?
a)
They make our world more beautiful
b)
They make the planet look green
c)
They use carbon dioxide and give us oxygen
d)
They provide shade for insects
14.
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
15.
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
16.
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
17.
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
18.
A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The gas being collected is probably ________.
a)
oxygen
b)
carbon dioxide
c)
ATP
d)
glucose
19.

​ (a)   is a gas that contains ​ (b)   atom and ​ (c)   atoms​

Choose from the below words
Carbon dioxide
Hydrogen oxide
one carbon
two carbon
two oxygen
one oxygen
20.

What is a group of atoms bonded together?

a)

Products

b)

Molecule

c)

Microorganism

d)

Reactants

21.

What is a substance that is a part of a reaction and goes through a change?

a)

Reactants

b)

Product

c)

Molecule

d)

Chloroplasts

22.

​ (a)   are an ​ (b)   (part of a cell) that contains ​ (c)   and where photosynthesis takes place.

Choose from the below words
Chloroplast
Cyanobacteria
organelle
atom
chlorophyll
organisms
23.

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

a)

Cell Membrane

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

24.
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
25.

Which of the following is the correct equation for PHOTOSYNTHESIS?

a)

light + carbon dioxide + water --> glucose + oxygen

b)

carbon dioxide + sugar + water --> oxygen + light

c)

oxygen + light + water --> carbon dioxide + sugar

d)

carbon dioxide + oxygen + water --> Light+ Sugar

26.

What pigment captures/absorbs sunlight?

a)

stomata

b)

chlorophyll

c)

chloroplast

d)

phloem

27.

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

a)

stomata

b)

xylem

c)

phloem

d)

chloroplast

28.

What are the 2 products of photosynthesis? The products are the things made in the process of photosynthesis.

a)

water, sunlight

b)

glucose, carbon dioxide

c)

oxygen, glucose

d)

sunlight, oxygen

29.

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

a)

oxygen

b)

carbon dioxide

c)

sugar

d)

glucose

30.

How does oxygen get released by the producer (plant)? Name the structure in the leaf.

a)

stomata

b)

xylem

c)

phloem

d)

chloroplast

31.

Which of the following are TRUE statements? (Select ALL that apply)

a)

Photosynthesis takes place in the chloroplasts of leaf cells

b)

Photosynthesis means "making food using sun"

c)

Photosynthesis can occur in the dark

d)

All plants, plant-like protists, and some bacteria go through photosynthesis

32.

These types of cells are packed tightly together allowing more light. They are near the top surface of the leaf.

a)

Palisade Mesophyll Cells

b)

Spongy Mesophyll Cells

c)

Chloroplasts

d)

Chlorophyll

33.

These types of cells have open spaces between them. Gases for photosynthesis flow through the spaces between them.

a)

Palisade Mesophyll Cells

b)

Spongy Mesophyll Cells

c)

Chloroplasts

d)

Chlorophyll

34.

A series of chemical reactions that convert light energy, water, and carbon dioxide into the food-energy molecule glucose, and give off oxygen.

a)

Cellular Respiration

b)

Photosynthesis

c)

Glycolysis

35.

What is the role of sunlight in photosynthesis?

a)

It helps the plant to grow.

b)

It provides energy to convert carbon dioxide and water into glucose.

c)

It is used to break down glucose into energy.

d)

It is absorbed by chlorophyll to give the plant its green color.