Biology - Heart and Blood

Question 1

What is the primary function of the heart?

Answer 1

To pump blood throughout the body.

Question 2

True or False: The heart is a muscular organ.

Answer 2

True

Question 3

What are the four chambers of the heart?

Answer 3

Right atrium, right ventricle, left atrium, left ventricle.

Question 4

Fill in the blank: The _____ carries oxygenated blood from the lungs to the heart.

Answer 4

pulmonary vein

Question 5

What is the function of the aorta?

Answer 5

To distribute oxygenated blood from the heart to the rest of the body.

Question 6

Which side of the heart pumps deoxygenated blood?

Answer 6

The right side.

Question 7

What is the name of the valve between the left atrium and left ventricle?

Answer 7

Bicuspid valve (or mitral valve).

Question 8

Multiple Choice: What type of blood vessel carries blood away from the heart? A) Veins B) Arteries C) Capillaries

Answer 8

B) Arteries

Question 9

True or False: Veins carry oxygenated blood.

Answer 9

False

Question 10

What is the role of red blood cells?

Answer 10

To transport oxygen from the lungs to the body’s tissues.

Question 11

Fill in the blank: The _____ is responsible for the exchange of gases in the lungs.

Answer 11

alveoli

Question 12

What component of blood helps in clotting?

Answer 12

Platelets.

Question 13

What is plasma?

Answer 13

The liquid component of blood that carries cells, nutrients, hormones, and waste.

Question 14

Multiple Choice: Which blood type is considered the universal donor? A) A B) B C) O

Answer 14

C) O

Question 15

What is the function of white blood cells?

Answer 15

To fight infections and protect the body against foreign invaders.

Question 16

True or False: The heart has its own blood supply.

Answer 16

True

Question 17

What is the term for the electrical system that regulates the heartbeat?

Answer 17

The conduction system.

Question 18

Fill in the blank: The _____ node initiates the heartbeat.

Answer 18

sinoatrial (SA) node

Question 19

What is hypertension?

Answer 19

High blood pressure.

Question 20

Multiple Choice: Which of the following conditions can result from high blood pressure? A) Stroke B) Diabetes C) Asthma

Answer 20

A) Stroke

Question 21

What is the function of the coronary arteries?

Answer 21

To supply blood to the heart muscle.

Question 22

True or False: The left ventricle is thicker than the right ventricle.

Answer 22

True

Question 23

What is an electrocardiogram (ECG)?

Answer 23

A test that records the electrical activity of the heart.

Question 24

Fill in the blank: Blood is made up of cells suspended in _____.

Answer 24

plasma

Question 25

What is anemia?

Answer 25

A condition characterized by a deficiency of red blood cells or hemoglobin.

Question 26

Multiple Choice: Which part of the blood is responsible for transporting nutrients? A) Red blood cells B) Plasma C) White blood cells

Answer 26

B) Plasma

Question 27

What is the primary role of the pulmonary artery?

Answer 27

To carry deoxygenated blood from the heart to the lungs.