Biology Quiz #6
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
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1. The plant hormone that is apparently involved in tropisms is
a. abscisic acid
b. auxin
c. gibberellin
d. ethylene
e. cytokinin
2. Which of the following is an exocrine gland?
a. mammary gland
b. thyroid gland
c. adrenal gland
d. anterior pituitary gland
e. thymus gland
3. Most of the functions of plasma membranes are carried out by
a. cholesterol.
b. proteins.
c. phosphate "heads" on the phospholipids.
d. fatty acid "tails" on the phospholipids.
e. water.
4. In general, what do plants require to meet their metabolic needs?
a. carbohydrates, light, water, and nitrogen
b. light, carbon dioxide, water, and minerals
c. carbon dioxide, oxygen, proteins, and minerals
d. water, carbohydrates, proteins, and minerals
e. light, water, proteins, and carbon dioxide
5. What type of macromolecule are antibodies?
a. carbohydrate
b. lipid
c. steroid
d. nucleic acid
e. protein
6. Each strand of DNA molecule has a backbone that is composed of alternating
a. purines and pyrimidines.
b. nitrogen-containing bases.
c. hydrogen bonds.
d. sugar and phosphate molecules.
e. amino acids.
7. Charles Darwin believed that artificial selection was
a. a common natural phenomenon.
b. impossible.
c. similar in many ways to natural selection.
d. something that had never been done but was possible.
e. a process essentially identical to natural selection.
8. Which of the following types of cells stimulates the other cells listed to perform their normal
functions?
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a. plasma B cells
b. memory B cells
c. helper T cells
d. supressor T cells
e. cytotoxic T cells
Which of the following groups of plants has the msot species living today?
a. bryophytes
b. angiosperms
c. ferns
d. gymnosperms
e. ginkgoes
Fossilized ____organisms have been discovered in rocks that are at least 3.5 billion years old.
a. eukaryotic
b. prokaryotic
c. fungal
d. protistan
e. algal
Why do people who don't get enough iron in their diet feel weak and tired?
a. Iron is an essential part of muscles.
b. Iron is an essential part of proteins.
c. Iron is directly involved in the production of ATP.
d. Iron is an essential part of hemoglobin.
e. Iron is essential for deep sleep.
Filtration of the blood in the kidneys occurs in the
a. distal tubule.
b. proximal tubule.
c. loop of Henle.
d. glomerulus.
e. collecting duct.
Which of the following kingdoms does not have any autotrophic members?
a. Kingdom Monera
b. Kingdom Fungi
c. Kingdom Plantae
d. Kingdom Protista
e. All of the above have autotrophic members.
From which embryonic tissue layer(s) does the human nervous system develop?
a. endoderm
b. ectoderm
c. mesoderm
d. mesoderm and ectoderm
e. all of the above.
Urea is the product of the breakdown of
a. lipids.
b. carbohydrates.
c. proteins.
d. nucleic acids.
e. all of the above
Biology Quiz #5
Answer Section
MULTIPLE CHOICE
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A
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B
B
A
D
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E
E
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E
A
A
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D