Biology B2.2.1 - B2.2.3

Question 1

What is the primary function of the respiratory system?

Answer 1

To facilitate gas exchange, primarily oxygen intake and carbon dioxide removal.

Question 2

True or False: The heart is a muscular organ that pumps blood throughout the body.

Answer 2

True

Question 3

Fill in the blank: The major artery that carries oxygenated blood from the heart to the body is called the _______.

Answer 3

aorta

Question 4

What is the role of hemoglobin in the blood?

Answer 4

To transport oxygen from the lungs to the body’s tissues and carbon dioxide from the tissues back to the lungs.

Question 5

Which part of the heart receives deoxygenated blood from the body?

Answer 5

Right atrium

Question 6

What is the function of the alveoli in the lungs?

Answer 6

To facilitate the exchange of oxygen and carbon dioxide between the air and the blood.

Question 7

True or False: Veins carry oxygenated blood away from the heart.

Answer 7

False

Question 8

What type of blood vessel carries blood back to the heart?

Answer 8

Veins

Question 9

Multiple Choice: Which structure prevents backflow of blood in the heart?

Answer 9

Valves

Question 10

What is the term for the rhythmic contraction of the heart muscles?

Answer 10

Cardiac cycle

Question 11

Fill in the blank: The _______ is the lower right chamber of the heart that pumps blood to the lungs.

Answer 11

right ventricle

Question 12

What is the main function of the circulatory system?

Answer 12

To transport nutrients, gases, hormones, and waste products throughout the body.

Question 13

True or False: The left ventricle pumps oxygenated blood to the lungs.

Answer 13

False

Question 14

What is the primary gas exchanged in the lungs?

Answer 14

Oxygen

Question 15

Multiple Choice: Which of the following is NOT a component of blood?

Answer 15

Bone

Question 16

What is the role of platelets in the blood?

Answer 16

To aid in blood clotting.

Question 17

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

Answer 17

pulmonary capillaries

Question 18

True or False: The right side of the heart handles oxygenated blood.

Answer 18

False

Question 19

What is the primary function of the pulmonary circulation?

Answer 19

To carry deoxygenated blood from the heart to the lungs for oxygenation.

Question 20

Multiple Choice: Which chamber of the heart has the thickest walls?

Answer 20

Left ventricle

Question 21

What is the function of the sinoatrial node?

Answer 21

To act as the natural pacemaker of the heart.

Question 22

Fill in the blank: The _______ carries deoxygenated blood from the heart to the lungs.

Answer 22

pulmonary artery

Question 23

What is the average resting heart rate for adults?

Answer 23

60 to 100 beats per minute

Question 24

True or False: Capillaries are the smallest blood vessels in the body.

Answer 24

True

Question 25

What is the function of the aorta?

Answer 25

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

Question 26

Multiple Choice: Which type of blood cell is responsible for immune response?

Answer 26

White blood cells

Question 27

Fill in the blank: Blood is composed of plasma, red blood cells, white blood cells, and _______.

Answer 27

platelets

Question 28

True or False: The left atrium receives oxygenated blood from the lungs.

Answer 28

True

Question 29

Multiple Choice: Which vessel carries oxygenated blood from the lungs to the heart?

Answer 29

Pulmonary veins

Question 30

Fill in the blank: The _______ is the largest vein in the body.

Answer 30

vena cava

Question 31

True or False: The coronary arteries supply blood to the heart muscle itself.

Answer 31

True

Question 32

What is the role of the pulmonary capillaries?

Answer 32

To allow for the exchange of gases between the alveoli and the blood.

Question 33

Multiple Choice: Which part of the heart is responsible for pumping blood to the body?

Answer 33

Left ventricle

Question 34

What is the term for the volume of blood pumped by the heart in one minute?

Answer 34

Cardiac output

Question 35

Fill in the blank: The _______ is a network of blood vessels that supply blood to the heart muscle.

Answer 35

coronary circulation

Question 36

True or False: Blood pressure is measured in millimeters of mercury (mmHg).

Answer 36

True

Question 37

Multiple Choice: Which component of blood is primarily responsible for transporting oxygen?

Answer 37

Red blood cells