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Lesson 3 Assessment/Test

Total questions: 13

Worksheet time: 3hrs 15mins

Name
Class
Date
1.

Use the "What did we learn?" slides to help answer this question.

The idea that matter is conserved is shown because

a)

there are the same type and number of atoms on each side of an chemical equation

b)

energy is released in reactions

c)

matter is not conserved, you may start with more mass than you end with

2.

Use the "What did we learn?" slides to help answer this question.

What is the science term used for the phrase "burning energy"?

a)

cellular photosynthesis

b)

cellular circulation

c)

cellular respiration

3.

Use the "What did we learn?" slides to help answer this question.

During cellular respiration, complex molecules react with _____ to form the product of _____, _____ and other materials.

a)

carbon dioxide. oxygen, energy

b)

energy, oxygen, carbon dioxide

c)

oxygen, carbon dioxide, energy

4.

Use the "What did we learn?" slides to help answer this question.

The scientific definition of food says that food ....

a)

provides energy

b)

provides building materials

c)

provides energy and building materials

5.

Use the "What did we learn?" slides to help answer this question.

What causes carbohydrates, proteins and fats to provide different amounts of energy?

a)

the differences in the type and arrangement of atoms

b)

the difference in the way they are cooked

c)

they all actually give us the same amount of energy

6.

Use the "What did we learn?" slides to help answer this question.

Food is considered _____ energy.

a)

kinetic

b)

thermal

c)

chemical

7.

Use the "What did we learn?" slides to help answer this question.

When food molecules are not used right away they can be _____.

a)

excreted

b)

stored

8.

Use the "What did we learn?" slides or page 61 to help answer this question.

What is special about the subunit/complex molecule of fat that allows it to provide more energy than others?

a)

it has more oxygen proportionally than the others

b)

It has fewer oxygen proportionally than the others

c)

it has no oxygen atoms unlike the others

9.

Use page 65 to help answer this question.

What controls how many calories we use each day?

a)

our various daily activities

b)

the amount of muscle we have

c)

how much you are growing

d)

all answers are correct

10.

Use the "What did we learn?" slides to help answer this question.

If a turtle's body contained 1 kg of water and it's body temperature increased from 22 degrees Celsius to 24 degrees Celsius, how many Calories were used by the turtle?

a)

1 Calorie

b)

2 Calories

c)

22 Calories

d)

24 Calories

11.

Page 37-38

Our bodies need vitamins, mineral and water so why are they considered nutrients rather than "food"?

a)

they do not provide both energy and building materials

b)

they do not keep us awake

c)

nutrients and food are the same thing

12.

Page 55

Food molecules can be simple or complex depending on the number of subunits. What is a subunit?

a)

a property of a substance

b)

a simple molecule that can be linked with other similar molecules

c)

a complex molecule that does not combine with other similar molecules

13.

Page 67

The only way to gain weight is to eat too much fatty foods.

a)

true

b)

false