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module5
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1992-01-01
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219 lines
NEW SET
A
Type the letter of the best reason.
(A) Respiration produces carbon dioxide.
(B) More stomata are usually found on the underside of leaves.
(C) Carbon dioxide is consumed during photosynthesis.
(D) Some chemical changes occur in the presence of enzymes.
(E) Photosynthesis requires chlorophyll.
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1
1. Limewater turned milky white when gas produced during respiration in
a yeast plant was bubbled through it.
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a
0
2
Correct.
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wrong answer explanation
2
(A) In plants, the end products of anaerobic respiration are alcohol and
carbon dioxide.
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2
2. When stained with iodine, the variegated (green and white) coleus
leaf turned blue-black only where the leaf was originally green.
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e
0
3
Correct.
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wrong answer explanation
3
(E) Iodine turns blue-black when carbohydrate material is present.
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3
3. When disks of cobalt chloride paper (which turn pink when moistened)
were placed on the lower epidermis of a geranium leaf, the disks turned
pink.
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b
0
4
Correct.
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wrong answer explanation
4
(B) Stomata permit the escape of excess water vapor during transpiration.
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4
4. The bromthymol blue in the opaque tube containing a sprig of ELODEA
remained yellow, but turned blue again in the clear tube containing
a similar sprig of ELODEA.
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c
0
5
Correct.
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wrong answer explanation
5
(C) Light allowed photosynthesis.
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5
5. A small amount of starch was mixed with water and saliva in a test
tube, resulting in a cloudy mixture. After 24 hours at room temperature,
the mixture became clear.
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e
0
B
Correct.
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wrong answer explanation
B
(D) The enzyme amylase digests starch.
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NEW SET
B
Type the letter of the illness that is prevented by the following
procedures.
(A) smallpox
(B) tuberculosis
(C) malaria
(D) rickets
(E) scurvy
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1
6. Inoculation with a related but milder disease germ
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a
0
2
Correct.
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wrong answer explanation
2
(A) Smallpox vaccine contains the mild virus of cowpox.
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2
7. Quinine or atabrine tablets
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c
0
3
Correct.
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wrong answer explanation
3
(C) Atabrine and quinine are the two principal drugs used to fight malaria.
Quinine was first used by the Indians of South America. It comes from the
bark of the cinchona tree.
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3
8. Fish-liver oils in the diet
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d
0
4
Correct.
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wrong answer explanation
4
(D) Rickets is a disease which is found in children. Bones become soft
because they lack either vitamin D or calcium. Fish-liver oils supply the
necessary vitamin D to prevent this disease.
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4
9. Citrus fruits in the diet
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e
0
5
Correct.
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wrong answer explanation
5
(E) Scurvy is caused by a lack of vitamin C in the diet. Citrus fruits
contain sufficient vitamin C to prevent this disease.
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5
10. Pasteurization of milk
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b
0
C
Correct.
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wrong answer explanation
C
(B) Pasteurization kills the bacteria in milk that can cause tuberculosis.
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NEW SET
C
Type the letter of the best answer.
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1
11. Which of the following is the correct choice for the flow of filtrate
through a nephron?
(A) proximal convolution, loop of Henle, distal convolution,
glomerulus, collecting tubule
(B) loop of Henle, proximal convolution, distal convolution,
collecting tubule
(C) glomerulus, proximal convolution, loop of Henle, distal
convolution, collecting tubule
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c
0
2
Correct.
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wrong answer explanation
2
(C) Kidneys are excellent products of millions of years of evolution.
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2
12. The tricuspid valve is in the:
(A) kidney
(B) liver
(C) heart
(D) lungs
(E) brain
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c
0
3
Correct.
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wrong answer explanation
3
(C) The tricuspid valve separates the right auricle and right ventricle in
the heart.
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3
13. Enucleate erythrocytes are characteristic of which one of the following?
(A) reptiles
(B) fish
(C) amphibians
(D) mammals
(E) arthropods
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d
0
D
Correct.
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wrong answer explanation
D
(D) Bacteria and mammals have been separate for so long that almost
everything that could be different between them is different, except for
the genetic code and method of protein synthesis.
end