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Worksheets

Digestive, Respiratory & Circulatory Systems

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

Where in the Respiratory System are the ALVEOLI located?

a)

In the lungs

b)

In the Heart

c)

In the Trachea

d)

In the Pharynx

2.

Place the following events in the correct order:


A) Food Enters the Esophagus

B) Food enters the Stomach

C) Food enters the Pharynx

a)

A, B, C

b)

B, A, C

c)

C, A, B

d)

C, B, A

3.

Your teeth in your mouth break down food while chewing. This is

a)

Chemical Digestion

b)

Mechanical Digestion

c)

Regurgitation

d)

Defecation

4.

When you exhale, or breathe out, your lungs remove (?) and take in (?)

a)

Oxygen / Carbon Dioxide

b)

Air / Waste

c)

Carbon Dioxide / Oxygen

d)

Glucose / Carbon Monoxide

5.

During gas exchange oxygen moves into the blood and carbon dioxide moves into the alveoli.

a)

TRUE

b)

FALSE

c)

NEVER

d)

Only on odd numbered Thursdays

6.

The main difference between OPEN and CLOSED circulatory systems is...

a)

Closed has blood LOOSE within the body cavity. Open has blood WITHIN blood vessels

b)

Closed are for Insects ONLY

c)

Open has blood LOOSE within the body cavity. Closed has blood WITHIN blood vessels.

d)

Open are ONLY in Mammals

7.

In the large intestine or colon, which liquid nutrient is being absorbed into the bloodstream, or we would be very dehydrated?

a)

Carbohydrate

b)

Water

c)

Vitamins

d)

Protein

8.

Which type of blood vessel only allows gas and other materials to be exchanged through the vessel walls?

a)

Arteries

b)

Capillaries

c)

Septum

d)

Veins

9.

A waste product of the respiratory system is:

a)

Glucose

b)

Oxygen

c)

Methane

d)

Carbon Dioxide

10.

A chamber behind the nose and mouth that leads to the trachea

a)

Nose

b)

Stomach

c)

Pharynx

d)

Lungs

11.

Most chemical digestion of our food takes place in which organ?

a)

Esophagus

b)

Large Intestine

c)

Small Intestine

d)

Stomach

12.

Why does the blood turn DARK RED (blue blood) as it circulates through the body?

a)

As it circulates, Blood delivers Oxygen and picks up Carbon Dioxide from the cells.

b)

As it circulates, Blood delivers Carbon Dioxide and picks up Oxygen from the cells.

c)

As it circulates, Blood delivers Glucose and picks up Chlorophyll from the cells.

d)

As it circulates, Blood delivers Carbon Monoxide and picks up Oxygen from the cells.

13.

What are five important organs part of the respiratory system?

a)

Nose, Trachea, Windpipe, Esophagus, Lungs

b)

The Nose, Trachea , Throat (Pharynx). Voice box (Larynx) and Heart

c)

The Nose, Throat, Lungs, and Sub system

d)

The Nose, Throat (pharynx) ,Windpipe (trachea), Bronchi, and Lungs

14.

In the digestion process, where does it begin to break the food down?

a)

Colon (Large Intestine)

b)

Mouth

c)

Stomach

d)

Small Intestine

15.

How is carbon dioxide released from the body?

a)

When we urinate

b)

When we inhale

c)

When we exhale

d)

When we sweat

16.

Which blood vessel carries blood from the body Towards the heart?

a)

Arteries

b)

Capillaries

c)

Valves

d)

Veins

17.

Within the lungs, the exchange of oxygen and carbon dioxide occurs between the _________ and the capillaries.

a)

Bronchi

b)

Esophagus

c)

Alveoli

d)

Trachea

18.

As waste moves through the digestive system, the _______________ absorbs useable water before storing waste in the rectum?

a)

Large Intestine

b)

Esophagus

c)

Stomach

d)

Small Intestine

19.

What is the main function of the respiratory system?

a)

To break down food and absorb nutrients

b)

To provide oxygen and remove carbon dioxide from the body

c)

To remove oxygen from the body and deliver carbon dioxide

d)

To break down food and absorb nutrients

20.

This part of the respiratory system cleans, moistens, and warms the air.

a)

Larynx

b)

Trachea

c)

Nasal Passage

d)

Windpipe

21.

Which type of blood vessel carries blood Away from the heart?

a)

Arteries

b)

Capillaries

c)

Alveoli

d)

Veins

22.

Which of the following is NOT part of the digestive tract? (Hint: Food does NOT pass through here; it is a "secondary" digestive organ.)

a)

Esophagus

b)

Liver

c)

Mouth

d)

Small Intestine

23.

The correct sequence (order) for the path of blood through the body is _________.

a)

Rest of the Body --Lungs -- Heart -- Lungs

b)

Heart -- Rest of the Body -- Lungs -- Heart

c)

Heart---Lungs---Rest of the Body -- Lungs -- Heart

d)

Heart -- Lungs -- Heart -- Rest of the Body -- Heart

24.

What type of cells carry oxygen in the blood?

a)

Plasma

b)

Platelets

c)

Red Blood Cells

d)

White Blood Cells

25.

During the time we are inhaling, our diaphragm does what?

a)

Contracts Up

b)

Pulls Up

c)

Pulls Down

d)

Stays the Same

26.

What is the contraction called that moves food along the digestive tract?

a)

Gag-Reflex

b)

Hiccup

c)

Peristalsis

d)

Voluntary

27.

The circulatory system includes these FOUR parts...

a)

Heart

b)

Diaphragm

c)

Arteries

d)

Capillaries

e)

Veins

28.

Nutrients are exchanged between the blood and the body cells in the _________.

a)

Arteries

b)

Bronchioles

c)

Capillaries

d)

Veins

29.

What are the two major organs of the respiratory system?

a)

Alveoli

b)

Bronchioles

c)

Capillaries

d)

Lungs

30.

Name of the muscular tube that takes the chewed food once swallowed in the mouth to the stomach.

a)

Duodenum

b)

Esophagus

c)

Ileum

d)

Jejunum