Mass Transport (Chapter 7) AI Generated

Question 1

What is mass transport?

Answer 1

The movement of substances within an organism or between organisms.

Question 2

True or False: Mass transport only occurs in animals.

Answer 2

False

Question 3

What is the main transport system in mammals?

Answer 3

The circulatory system.

Question 4

Fill in the blank: In humans, oxygen is primarily transported by _____ in the blood.

Answer 4

hemoglobin

Question 5

What are the two main types of circulatory systems?

Answer 5

Open and closed circulatory systems.

Question 6

Multiple choice: Which of the following is a feature of a closed circulatory system? A) Blood is not contained in vessels B) Blood flows in a loop C) Blood is pumped by a heart

Answer 6

C) Blood is pumped by a heart

Question 7

What is the role of the heart in mass transport?

Answer 7

To pump blood throughout the body.

Question 8

True or False: The left side of the heart pumps deoxygenated blood.

Answer 8

False

Question 9

What are the main components of blood?

Answer 9

Red blood cells, white blood cells, plasma, and platelets.

Question 10

Fill in the blank: The _____ circuit carries blood to and from the lungs.

Answer 10

pulmonary

Question 11

What is the function of capillaries?

Answer 11

To facilitate the exchange of substances between blood and tissues.

Question 12

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

Answer 12

B) Arteries

Question 13

What is the significance of the double circulatory system in mammals?

Answer 13

It allows for efficient oxygenation and nutrient delivery.

Question 14

True or False: Veins have thicker walls than arteries.

Answer 14

False

Question 15

What is the role of plasma in the blood?

Answer 15

To transport nutrients, hormones, and waste products.

Question 16

Fill in the blank: The _____ is the largest artery in the body.

Answer 16

aorta

Question 17

What is the function of red blood cells?

Answer 17

To transport oxygen from the lungs to the body tissues.

Question 18

Multiple choice: Which component of blood is responsible for clotting? A) Red blood cells B) White blood cells C) Platelets

Answer 18

C) Platelets

Question 19

What is the function of white blood cells?

Answer 19

To defend the body against infection.

Question 20

True or False: The heart has four chambers.

Answer 20

True

Question 21

Fill in the blank: The _____ valves prevent backflow of blood into the atria.

Answer 21

atrioventricular

Question 22

What is the role of the sinoatrial node?

Answer 22

To act as the natural pacemaker of the heart.

Question 23

Multiple choice: Which part of the heart receives deoxygenated blood? A) Left atrium B) Right atrium C) Aorta

Answer 23

B) Right atrium

Question 24

What is the primary gas exchanged in the lungs?

Answer 24

Oxygen

Question 25

True or False: Blood pressure is highest in the veins.

Answer 25

False

Question 26

Fill in the blank: The _____ system helps in the transport of lymph.

Answer 26

lymphatic

Question 27

What is the function of the lymphatic system?

Answer 27

To transport lymph and help with immune responses.

Question 28

Multiple choice: Which type of blood vessel has valves to prevent backflow? A) Arteries B) Veins C) Capillaries

Answer 28

B) Veins

Question 29

What is the role of the pulmonary veins?

Answer 29

To carry oxygenated blood from the lungs to the heart.

Question 30

True or False: The right ventricle pumps blood to the body.

Answer 30

False

Question 31

Fill in the blank: The _____ is the muscle layer of the heart.

Answer 31

myocardium

Question 32

What is the primary function of the circulatory system?

Answer 32

To transport nutrients, gases, hormones, and waste products.

Question 33

Multiple choice: Which blood component is involved in immune response? A) Red blood cells B) Platelets C) White blood cells

Answer 33

C) White blood cells

Question 34

What is cardiac output?

Answer 34

The volume of blood the heart pumps per minute.

Question 35

True or False: Blood flows in one direction through the heart.

Answer 35

True

Question 36

Fill in the blank: The _____ is the pressure exerted by the blood against the walls of blood vessels.

Answer 36

blood pressure

Question 37

What is the difference between systolic and diastolic pressure?

Answer 37

Systolic pressure is the pressure during heart contraction; diastolic pressure is during relaxation.

Question 38

Multiple choice: What type of circulation involves blood flow through the kidneys? A) Systemic B) Pulmonary C) Renal

Answer 38

C) Renal

Question 39

What does the term 'homeostasis' refer to?

Answer 39

The maintenance of stable internal conditions in an organism.

Question 40

True or False: Oxygen and carbon dioxide are exchanged in the capillaries.

Answer 40

True

Question 41

Fill in the blank: The _____ is the outer layer of blood vessels.

Answer 41

tunica externa

Question 42

What is the primary role of the heart valves?

Answer 42

To ensure unidirectional blood flow.

Question 43

Multiple choice: Which structure prevents backflow of blood into the ventricles? A) Atrioventricular valves B) Semilunar valves C) Both A and B

Answer 43

C) Both A and B

Question 44

What is the significance of the aortic arch?

Answer 44

It distributes blood to the upper body and head.

Question 45

True or False: The circulatory system is responsible for thermoregulation.

Answer 45

True

Question 46

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

Answer 46

alveoli

Question 47

What is the role of the coronary arteries?

Answer 47

To supply blood to the heart muscle itself.

Question 48

Multiple choice: Which type of circulation supplies oxygen to the heart muscle? A) Pulmonary B) Systemic C) Coronary

Answer 48

C) Coronary

Question 49

What is the importance of the exchange surfaces in mass transport?

Answer 49

To maximize the efficiency of gas and nutrient exchange.

Question 50

True or False: The blood-brain barrier allows all substances to pass into the brain.

Answer 50

False

Question 51

Fill in the blank: The _____ is the smallest blood vessel where exchange occurs.

Answer 51

capillary