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Unit 3: Organization and Energy in the Body

Total questions: 25

Worksheet time: 24mins

Name
Class
Date
1.
Which organ system works with the digestive system to digest and move food through the body? 
a)
Muscular System 
b)
Skeletal System
c)
Nervous System
d)
Endocrine System 
2.
 A group of cells that work together to perform a similar function is:
a)
tissue
b)
organs
c)
organ systems 
d)
organisms
3.
The most basic unit of life and the smallest level of organization is: 
a)
cell
b)
tissue
c)
organs
d)
bacteria 
4.
What is mechanical digestion? 
a)
When food is chemically broken down into usable energy
b)
When food is broken down by acids and enzymes
c)
When food is physically broken down into smaller pieces 
d)
When food is not broken down at all
5.
What is chemical digestion? 
a)
When food is moved through the digestive system
b)
When food is physically broken down into smaller pieces 
c)
When food is not broken down at all
d)
When food is broken down by acids and enzymes into usable energy 
6.
Which of the following organisms transforms radiant energy into chemical energy?
a)
Bird
b)
Dog
c)
Flower
d)
Spider 
7.
Which of the following transforms mechanical energy into thermal energy? 
a)
A windmill 
b)
Kicking a soccer ball 
c)
Placing hands over a lightbulb
d)
Rubbing your hands together
8.
Which of the following transforms chemical energy into mechanical energy? 
a)
A flower
b)
An animal 
c)
Clouds 
d)
A pot of boiling water
9.
Groups of different tissues that work together to carry our a specific task is: 
a)
tissues
b)
a cell
c)
an organ
d)
an organ system
10.
Which of the following organ to organ system combinations goes together? 
a)
Heart in the Circulatory System
b)
Kidneys in the Respiratory System
c)
Brain in the Excretory System
d)
Lungs in the Nervous System
11.
Groups of different organs working together to complete a series of tasks is:
a)
a cell
b)
tissues
c)
an organ 
d)
an organ system
12.
Which of the following is the CORRECT order of levels of organization from smallest to largest? 
a)
cell, tissues, organisms, populations, organs, organ systems
b)
cells, tissues, organs, organ systems, organisms, populations 
c)
tissues, cells, organs, organ systems, organisms, populations 
d)
organisms, tissues, cells, organ systems, populations, organs 
13.
What is an energy transformation that takes place during DIGESTION?
a)
chemical --> mechanical
b)
thermal --> radiant
c)
radiant --> mechanical 
d)
chemical --> radiant 
14.
Plants make their own food, how do animals get the energy they need? 
a)
From plants and other animals they eat
b)
From the oxygen they breathe
c)
From the sun 
d)
From water they drink
15.

Food, fuel and batteries are always examples of.....

a)

chemical energy

b)

sound energy

c)

radiant energy

d)

electric energy

16.
Which of the following is a PHYSICAL change to food during digestion?
a)
breaking down food by chewing
b)
breaking down food by enzymes in saliva 
c)
breaking down food by stomach acid 
d)
breaking down food by bile 
17.
"Saliva in the mouth starts to break down food"  is...
a)
Chemical Digestion 
b)
Mechanical Digestion
18.
"The muscles in the esophagus push food down into the stomach"  is... 
a)
Chemical Digestion
b)
Mechanical Digestion 
19.
"Enzymes from the pancreas break down carbohydrates and proteins" is...
a)
Chemical Digestion
b)
Mechanical Digestion
20.
"The large intestine removes water from food to hydrate the body" is...
a)
Chemical Digestion
b)
Mechanical Digestion
21.

Where do animals and birds get the energy they need to create their BODY HEAT?

a)

the air they breathe

b)

the food they eat

c)

from sunlight they absorb

d)

from the amount of blood their bodies produce

22.

When saliva starts to break down food in the mouth, this is-

a)

chemical

b)

mechanical

c)

chemical and mechanical

d)

physical

23.

A person eats an egg for breakfast. Which one is a PHYSICAL change to the egg?

a)

teeth chewing the egg

b)

saliva breaking down the egg

c)

bile breaking down fat in the egg

d)

the pancreas secretes insulin to control your blood sugar after you eat the egg.

24.

Where does chemical digestion begin?

a)

The mouth- with saliva

b)

The mouth-with teeth chewing

c)

The stomach with HCl acid

d)

The small intestine with enzymes

25.

What is a POPULATION?

a)

A group of the SAME SPECIES of organisms

b)

A group of DIFFERENT SPECIES in their non-living environment.

c)

A group of non-living things

d)

A group of living and non-living things that live in the same type environment

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