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The Circulatory System: Blood, Heart, and Immunity: Understanding Their Components and Functions in the Body

Last updated 20 days ago

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Question 1

1.

What is the primary function of red blood cells?

Transport carbon dioxide

Transport oxygen

Fight infections

Regulate temperature

Question 2

2.

Which component of blood is responsible for clotting?

Red blood cells

White blood cells

Platelets

Plasma

Question 3

3.

What role does plasma play in the blood?

Carries oxygen only

Transport nutrients and waste

Fights off disease

Regulates hormones only

Question 4

4.

How do red blood cells adapt to their function of oxygen transport?

They have a nucleus

They are shaped like discs

They can divide

They produce hormones

Question 5

5.

What do phagocytes do as part of the immune response?

Release hormones

Ingest pathogens

Transport oxygen

Produce antibodies

Question 6

6.

How do vaccines work in the immune system?

They produce new red blood cells

They help manufacture memory cells

They immediately kill pathogens

They reduce blood clotting

Question 7

7.

The heart pumps blood to the lungs for oxygenation before sending it to the rest of the body.

True

False

Question 8

8.

What happens to heart rate during exercise?

It decreases

It stays the same

It increases

It stops temporarily

Question 9

9.

What is hemoglobin?

A type of plasma protein

A carbohydrate

A protein that binds oxygen

A type of white blood cell

Question 10

10.

The absence of a nucleus in red blood cells increases their oxygen-carrying capacity.

True

False

Question 11

11.

Which of the following is NOT transported by plasma?

Digested food

Carbon dioxide

Bacteria

Urea

Question 12

12.

Select all the components of blood.

Red blood cells

Glucose

Question 13

13.

In what part of the body do white blood cells primarily function?

Heart

Liver

Lungs

Bloodstream

Question 14

14.

What is the main purpose of antibodies?

Clot blood

Transport oxygen

Fight off specific pathogens

Provide energy

Question 15

15.

Which part of the heart pumps oxygenated blood to the body?

Right atrium

Left atrium

Right ventricle

Left ventricle

Question 16

16.

Question 17

17.

Question 18

18.

True

False

Question 19

19.

Question 20

20.

Question 21

21.

Question 22

22.

True

False

Question 23

23.

Question 24

24.

Question 25

25.

Question 26

26.

True

False

Question 27

27.

Question 28

28.

Question 29

29.

Question 30

30.

Question 31

31.

Question 32

32.

Question 33

33.

True

False

Question 34

34.

Question 35

35.

Question 36

36.

Plasma

White blood cells

Platelets