Question 1

Digestion of protein begins in the

Accepted Answer

A)  mouth. 
B)  stomach. 
C)  duodenum. 
D)  small intestine. 
A)  mouth. 
B)  stomach. 
C)  duodenum. 
D)  small intestine.

Question 2

Which of the following is the path an oxygen molecule would take from the air outside your body to your blood?

Accepted Answer

A)  Alveoli $\rightarrow$ bronchioles $\rightarrow$ bronchi $\rightarrow$trachea $\rightarrow$ capillaries 
B)  Bronchi $\rightarrow$ alveoli $\rightarrow$ trachea $\rightarrow$ bronchioles $\rightarrow$ capillaries 
C)  Bronchioles $\rightarrow$ trachea $\rightarrow$ alveoli$\rightarrow$bronchi $\rightarrow$ capillaries 
D)  Trachea $\rightarrow$bronchi $\rightarrow$ bronchioles $\rightarrow$ alveoli $\rightarrow$capillaries 
A)  Alveoli $\rightarrow$ bronchioles $\rightarrow$ bronchi $\rightarrow$trachea $\rightarrow$ capillaries 
B)  Bronchi $\rightarrow$ alveoli $\rightarrow$ trachea $\rightarrow$ bronchioles $\rightarrow$ capillaries 
C)  Bronchioles $\rightarrow$ trachea $\rightarrow$ alveoli$\rightarrow$bronchi $\rightarrow$ capillaries 
D)  Trachea $\rightarrow$bronchi $\rightarrow$ bronchioles $\rightarrow$ alveoli $\rightarrow$capillaries

Question 3

In humans, hemoglobin is contained within

Accepted Answer

A)  plasma. 
B)  red blood cells. 
C)  oxygen. 
D)  platelets. 
A)  plasma. 
B)  red blood cells. 
C)  oxygen. 
D)  platelets.

Question 4

The primary function of the blood is

Accepted Answer

A)  transportation. 
B)  metabolism. 
C)  increasing temperature. 
D)  to supply the lymphatic system. 
A)  transportation. 
B)  metabolism. 
C)  increasing temperature. 
D)  to supply the lymphatic system.

Question 5

The main function of the large intestine is to

Accepted Answer

A)  supply enzymes for digestion. 
B)  remove water. 
C)  absorb nutrients. 
D)  produce vitamins. 
A)  supply enzymes for digestion. 
B)  remove water. 
C)  absorb nutrients. 
D)  produce vitamins.

Question 6

Blood vessels that carry blood from one set of capillaries to another are known as

Accepted Answer

A)  arteries. 
B)  veins. 
C)  arterioles. 
D)  portal veins. 
A)  arteries. 
B)  veins. 
C)  arterioles. 
D)  portal veins.

Question 7

Systolic blood pressure is the

Accepted Answer

A)  pressure in veins. 
B)  pressure in major arteries caused by the contraction of the left ventricle. 
C)  pressure in major arteries when the heart is relaxing. 
D)  difference in pressure that causes the pulse. 
A)  pressure in veins. 
B)  pressure in major arteries caused by the contraction of the left ventricle. 
C)  pressure in major arteries when the heart is relaxing. 
D)  difference in pressure that causes the pulse.

Question 8

This is the most plentiful plasma protein and is the primary molecule involved in maintaining osmotic balance.

Accepted Answer

A)  hemoglobin 
B)  albumin 
C)  carbonic anhydrase 
D)  bilirubin 
A)  hemoglobin 
B)  albumin 
C)  carbonic anhydrase 
D)  bilirubin

Question 9

Gastric juice

Accepted Answer

A)  contains hydrochloric acid. 
B)  digests fats. 
C)  assists the function of saliva. 
D)  is produced by the pancreas. 
A)  contains hydrochloric acid. 
B)  digests fats. 
C)  assists the function of saliva. 
D)  is produced by the pancreas.

Question 10

The primary function of capillaries is to

Accepted Answer

A)  allow exchange of materials between the blood and cells. 
B)  carry blood through the body. 
C)  manufacture blood cells. 
D)  connect arteries to veins. 
A)  allow exchange of materials between the blood and cells. 
B)  carry blood through the body. 
C)  manufacture blood cells. 
D)  connect arteries to veins.

Question 11

The proximal convoluted tubule

Accepted Answer

A)  reabsorbs most of the valuable materials that leave the glomerulus and enters the nephron. 
B)  secretes ions into the nephron. 
C)  simply conducts fluid to the loop of Henle. 
D)  reabsorbs fats and proteins. 
A)  reabsorbs most of the valuable materials that leave the glomerulus and enters the nephron. 
B)  secretes ions into the nephron. 
C)  simply conducts fluid to the loop of Henle. 
D)  reabsorbs fats and proteins.

Question 12

This lymph organ is responsible for producing red and white blood cells and platelets.

Accepted Answer

A)  thymus 
B)  red bone marrow 
C)  spleen 
D)  lymph nodes 
A)  thymus 
B)  red bone marrow 
C)  spleen 
D)  lymph nodes

Question 13

The normal flow of blood through the heart would be

Accepted Answer

A)  right atrium $\rightarrow$ right ventricle $\rightarrow$ lungs $\rightarrow$ left atrium $\rightarrow$ left ventricle. 
B)  right atrium $\rightarrow$ left atrium $\rightarrow$ left ventricle $\rightarrow$aorta. 
C)  lungs $\rightarrow$right atrium $\rightarrow$ right ventricle $\rightarrow$ aorta. 
D)  right atrium $\rightarrow$ right ventricle $\rightarrow$ aorta $\rightarrow$ left atrium $\rightarrow$ left ventricle $\rightarrow$lungs. 
A)  right atrium $\rightarrow$ right ventricle $\rightarrow$ lungs $\rightarrow$ left atrium $\rightarrow$ left ventricle. 
B)  right atrium $\rightarrow$ left atrium $\rightarrow$ left ventricle $\rightarrow$aorta. 
C)  lungs $\rightarrow$right atrium $\rightarrow$ right ventricle $\rightarrow$ aorta. 
D)  right atrium $\rightarrow$ right ventricle $\rightarrow$ aorta $\rightarrow$ left atrium $\rightarrow$ left ventricle $\rightarrow$lungs.

Question 14

Blood pressure is the measure of pressure in a large artery and is recorded as two numbers (120/80). These numbers stand for the pressure

Accepted Answer

A)  while the heart is contracting over the pressure while the heart is relaxed. 
B)  while the subject is exercising over the pressure while at rest. 
C)  while the heart is relaxed over the pressure while the heart is contracting. 
D)  in the pulmonary system over the pressure in the systemic system. 
A)  while the heart is contracting over the pressure while the heart is relaxed. 
B)  while the subject is exercising over the pressure while at rest. 
C)  while the heart is relaxed over the pressure while the heart is contracting. 
D)  in the pulmonary system over the pressure in the systemic system.

Question 15

Which of the following would be most likely to happen during exercise?

Accepted Answer

A)  Increased flow of blood to the skin 
B)  Slower heart rate 
C)  Increased flow of blood to the intestines 
D)  Reduced flow of blood to muscles 
A)  Increased flow of blood to the skin 
B)  Slower heart rate 
C)  Increased flow of blood to the intestines 
D)  Reduced flow of blood to muscles

Question 16

In comparing the four chambers of the heart, the _______ have weak, thin walls and the ____ have thick muscular walls.

Accepted Answer

A)  right atrium and right ventricle; left atrium and left ventricle 
B)  left atrium and left ventricle; right atrium and right ventricle 
C)  right and left atria; right and left ventricles 
D)  right and left ventricles; right and left atria 
A)  right atrium and right ventricle; left atrium and left ventricle 
B)  left atrium and left ventricle; right atrium and right ventricle 
C)  right and left atria; right and left ventricles 
D)  right and left ventricles; right and left atria

Question 17

Bile is produced in the

Accepted Answer

A)  liver. 
B)  duodenum. 
C)  pancreas. 
D)  stomach. 
A)  liver. 
B)  duodenum. 
C)  pancreas. 
D)  stomach.

Question 18

The duodenum is part of the

Accepted Answer

A)  stomach. 
B)  pancreas. 
C)  small intestine. 
D)  large intestine. 
A)  stomach. 
B)  pancreas. 
C)  small intestine. 
D)  large intestine.

Question 19

The primary function of the large intestine is to

Accepted Answer

A)  emulsify fats. 
B)  reabsorb water and other secretions. 
C)  absorb food molecules. 
D)  produce digestive juices. 
A)  emulsify fats. 
B)  reabsorb water and other secretions. 
C)  absorb food molecules. 
D)  produce digestive juices.

Question 20

Most of the oxygen carried by the blood is

Accepted Answer

A)  dissolved in the plasma. 
B)  bound to hemoglobin molecules. 
C)  present as tiny bubbles in the blood. 
D)  part of sugar molecules. 
A)  dissolved in the plasma. 
B)  bound to hemoglobin molecules. 
C)  present as tiny bubbles in the blood. 
D)  part of sugar molecules.

Exam 24: Materials Exchange in the Body

Digestion of protein begins in the

Which of the following is the path an oxygen molecule would take from the air outside your body to your blood?

In humans, hemoglobin is contained within

The primary function of the blood is

The main function of the large intestine is to

Blood vessels that carry blood from one set of capillaries to another are known as

Systolic blood pressure is the

This is the most plentiful plasma protein and is the primary molecule involved in maintaining osmotic balance.

Gastric juice

The primary function of capillaries is to

The proximal convoluted tubule

This lymph organ is responsible for producing red and white blood cells and platelets.

The normal flow of blood through the heart would be

Blood pressure is the measure of pressure in a large artery and is recorded as two numbers (120/80). These numbers stand for the pressure

Which of the following would be most likely to happen during exercise?

In comparing the four chambers of the heart, the _______ have weak, thin walls and the ____ have thick muscular walls.

Bile is produced in the

The duodenum is part of the

The primary function of the large intestine is to

Most of the oxygen carried by the blood is

What Is Biology

The Basics of Life: Chemistry

Organic Molecules: The Molecules of Life

Cell Structure and Function

Enzymes, Coenzymes, and Energy

Biochemical Pathways: Cellular Respiration

Biochemical Pathways: Photosynthesis

DNA and RNA: The Molecular Basis of Heredity

Cell Division: Proliferation and Reproduction

Patterns of Inheritance

Applications of Biotechnology

Diversity Within Species and Population Genetics

Evolution and Natural Selection

The Formation of Species and Evolutionary Change

Ecosystem Dynamics: The Flow of Energy and Matter

Community Interactions

Population Ecology

Evolutionary and Ecological Aspects of Behavior

The Origin of Life and the Evolution of Cells

The Classification and Evolution of Organisms

The Nature of Microorganisms

The Plant Kingdom

The Animal Kingdom

Nutrition: Food and Diet

The Bodys Control Mechanisms and Immunity

Human Reproduction, Sex, and Sexuality

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In comparing the four chambers of the heart, the ___ have weak, thin walls and the have thick muscular walls.