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Conservation of Mass & Cellular Respiration/ Photosynthesis

Total questions: 12

Worksheet time: 10mins

Name
Class
Date
1.

Jordan adds some soil and plants to a large glass jar to build a

terrarium. He waters the plants and then adds two snails, two crickets,

and an earthworm to the jar. Jordan then places the lid tightly on the

jar and sets it on a sunny windowsill. Based on the law of conservation

of mass, which of the following is expected to occur inside Jordan’s

terrarium?

a)

The mass will increase as the plants grow and decrease when the

snails eat the plants.

b)

The mass will increase as the earthworm digests the soil.

c)

The mass will decrease when the crickets die.

d)

The mass will neither increase nor decrease.

2.

What evidence should be present to show that labels B and D support the Law of Conservation of Mass and Energy?

a)

oxygen coming in and water being released

b)

glucose being taken in and oxygen being released

c)

carbon dioxide coming in and glucose being created

d)

sunlight being absorbed and carbon dioxide being released

3.

What is the importance of the part labeled E?

a)

What is the importance of the part labeled E

b)

Oxygen is converted into carbon dioxide and released from the plant

c)

Water is the source of hydrogen that is found in the glucose

d)

Carbon dioxide is used to create the glucose for the plant

4.

Which of these pieces of evidence would support the Law of Conservation shown in process C?

a)

Glucose is broken down into oxygen that is then taken up by plants for photosynthesis

b)

Cellular respiration produces the oxygen that will be used to convert the glucose into carbon dioxide

c)

Glucose in the bread is converted into energy so that the organism can carry out all of its required processes

d)

Carbon dioxide from the breakdown of glucose is used to create more glucose for plants during photosynthesis

5.

Why is sunlight so important to the process of photosynthesis?

a)

It transforms the carbon dioxide into oxygen that is released through the leaves

b)

It provides the needed temperatures to change glucose into water

c)

It provides the energy needed to combine the atoms in glucose

d)

It raises the levels of gases in the air so that water can change into oxygen

6.

During the forest fire, chemical potential energy is converted to thermal energy when trees and plants burn. How does this demonstrate the law of conservation of energy?

a)

Heat is transferring to the forest’s surroundings

b)

Energy is changing form

c)

Some plants and animals survive

d)

Energy continues to enter the ecosystem

7.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
8.

Which organisms perform cellular respiration?

a)

b)

Dog

c)

Cat

d)

Mushroom

9.

Which organisms photosynthesize?

a)

Flower

b)

Algae

c)

d)

Bacteria

10.

Which cell organelle is where photosynthesis takes place?

11.

Which cell organelle is where cellular respiration takes place?

12.

Label the following Carbon cycle.