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1. The diagram below represents a portion of the human
body.
The principal function of structure X is to
A)
B)
C)
D)
produce salivary enzymes
secrete sex hormones
absorb water
digest bile
2. Base your answer to the following question on the diagram and graph below and on your knowledge of
biology. The diagram represents the human digestive system. Pepsin and trypsin are human digestive
enzymes.
The graph indicates that pepsin would function best in the
A) mouth
B) stomach
C) small intestine
D) large intestine
3. Which lettered structure in the diagram below produces
enzymes for the digestion of nutrients in the small
intestine?
A) A
B) B
C) C
Base your answers to questions 5 and 6 on your
knowledge of biology and on the graph below which
shows the extent to which carbohydrates, proteins, and
fats are chemically digested as food passes through the
human digestive tract. The letters represent sequential
structures that make up the digestive tract.
D) D
4. Which process is illustrated in the diagrams below?
5. Water is removed from the undigested material in
A) A
B) B
C) E
D) D
6. The final products of digestion are absorbed almost
entirely in
A) F
A) circulation
C) peristalsis
B) absorption
D) ingestion
B) B
C) C
D) D
7. The absorptive surface of the small intestine is greater
than that of other human digestive organs because of its
length and the presence of
A) alveoli
C) villi
B) neurons
D) nephrons
8. Which structures secrete chemicals utilized for the
completion of digestion within the small intestine?
A)
B)
C)
D)
liver and pancreas
glomerulus and villi
esophagus and alveoli
gallbladder and pharynx
9. Which structure produces a substance that aids in the
mechanical breakdown of fats?
A) liver
C) testes
B) thyroid gland
D) pituitary gland
10. Which statement correctly describes the activities of the
components of human blood shown in the diagram
below?
A) Both A and B function in immune responses, and
C transports oxygen.
B) A, B, and C are able to synthesize hemoglobin.
C) Both B and C provide immunity, and A transports
nutrients.
D) A transports oxygen, B initiates clots, and C
functions in immune responses.
14. What is a major difference between red blood cells and
white blood cells?
A) Red blood cells contain hemoglobin, but white
blood cells do not.
B) Red blood cells can move, but white blood cells
cannot.
C) Red blood cells contain nuclei, but white blood
cells do not.
D) Red blood cells engulf foreign bacteria, but white
blood cells do not.
15. The diagram below represents a microscopic view of
blood.
11. The lack of which blood component interferes most
with the transport of oxygen in humans?
A) white blood cells
C) platelets
B) red blood cells
D) antibodies
12. Red blood cells are produced in the
A) bone marrow
C) liver
B) lymph nodes
D) arteries
13. Which part of human blood transports hormones and
nutrients?
A) plasma
C) red blood cells
B) platelets
D) white blood cells
Cell A protects the body by producing specific
chemicals in response to pathogens. Cell A is
A)
B)
C)
D)
a red blood cell
a bacteria cell
an insulin-producing cell
a white blood cell
Answer Key
Hwk #4
1.
C
2.
B
3.
D
4.
C
5.
C
6.
D
7.
C
8.
A
9.
A
10.
D
11.
B
12.
A
13.
A
14.
A
15.
D