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Q:
The integumentary system functions in
a. ion transport.
b. support.
c. covering.
d. contraction.
e. resistance.
Q:
Of the following organs, which is NOT in the abdominal cavity?
a. stomach
b. liver
c. heart
d. intestine
e. pancreas
Q:
Which system produces red blood cells?
a. endocrine
b. skeletal
c. muscular
d. defense
e. integumentary
Q:
Integration of body functions is controlled by the
a. respiratory system.
b. nervous system.
c. endocrine system.
d. defense system.
e. nervous system and the endocrine system.
Q:
Which system is directly involved with heat production?
a. endocrine system
b. nervous system
c. muscular system
d. respiratory system
e. skeletal system
Q:
The maintenance of the volume and composition of body fluids is the primary responsibility of which system?
a. integumentary
b. immune
c. digestive
d. urinary
e. circulatory
Q:
The endocrine system functions in
a. conduction.
b. contraction.
c. hormonal control of the body.
d. protection against disease.
e. cell production.
Q:
The above figure is a photomicrograph of what kind of tissue?
a. cardiac muscle
b. skeletal muscle
c. nerve tissue
d. cartilage
e. dense connective
Q:
Rapid communication throughout the body is accomplished by
a. neurons.
b. blood.
c. hormones.
d. muscles.
e. connective tissue.
Q:
Which of the following junctions influences the passage of ions and small molecules between cells?
a. gap
b. adhering
c. loose
d. tight
e. gated
Q:
Smooth muscles
a. are not striated.
b. have spindle-shaped cells.
c. are found in the walls of hollow structures such as blood vessels and the stomach.
d. are involuntary.
e. include all of these descriptions.
Q:
The above figure is a photomicrograph of what kind of tissue?
a. cardiac muscle
b. skeletal muscle
c. smooth muscle
d. cartilage
e. dense connective
Q:
Cardiac muscle cells are
a. involuntary.
b. spindle-shaped.
c. multinucleated.
d. slow contracting.
e. all of these.
Q:
The figure shown above is of what kind of tissue?
a. blood
b. adipose
c. bone
d. cartilage
e. dense connective
Q:
People with a large amount of which tissue are least likely to be sensitive to cold?
a. cartilage
b. adipose
c. blood
d. dense connective
e. bone
Q:
Collagen fibers are characteristic of which tissue?
a. muscle
b. epithelial
c. connective
d. nervous
e. glandular
Q:
Bones are held together at joints by
a. tendons.
b. intercellular junctions.
c. ligaments.
d. cartilage.
e. collagen.
Q:
Which of the above would provide a stretchable attachment between body parts?
a. A
b. B
c. C
d. D
e. none of the above
Q:
Which of the following is NOT a connective tissue?
a. bone
b. muscle
c. cartilage
d. adipose
e. blood
Q:
The following questions refer to the figure above of epithelial tissues.
This is a squamous cell.
a. A
b. B
c. C
d. D
e. E
Q:
The following questions refer to the figure above of epithelial tissues.
This tissue is found in the gut.
a. A
b. B
c. C
d. D
e. E
Q:
The following questions refer to the figure above of epithelial tissues.
This tissue lines blood and lymph vessels.
a. A
b. B
c. C
d. D
e. E
Q:
Exocrine glands secrete all of the following EXCEPT
a. mucus.
b. hormones.
c. earwax.
d. milk.
e. digestive enzymes.
Q:
The outer layer of skin is mostly ____ epithelium.
a. simple squamous
b. simple cuboidal
c. stratified squamous
d. simple columnar
e. stratified cuboidal
Q:
The secretion of tears, milk, saliva, and earwax is a function of what tissue?
a. epithelial
b. loose connective
c. lymphoid
d. nervous
e. adipose
Q:
The tissue that lines all internal surfaces is
a. epithelium.
b. loose connective.
c. supportive connective.
d. fibrous.
e. adipose.
Q:
____ is the process of maintaining a constant internal environment.
a. Hybridization
b. Osmostasis
c. pH adjustment
d. Homeostasis
e. None of these
Q:
An organ is made up of
a. a single type of tissue.
b. glandular tissue.
c. 2 or more tissues working together to perform a specific task.
d. muscle tissue that has differentiated from stem cells.
e. none of these.
Q:
A tissue consists of interacting cells and
a. blood cells.
b. pigmented skin cells.
c. extracellular substances.
d. nerve cells.
e. none of these.
Q:
Stem cells show promise for mending damage due to
a. spinal cord injuries.
b. Parkinson's disease.
c. muscular dystrophy.
d. heart attacks.
e. all of these.
Q:
Which of the following is false concerning stem cells?
a. They are undifferentiated cells.
b. They arise from a fertilized egg.
c. They can be coaxed to differentiate.
d. They are obtained from a portion of a plant body.
e. They may help mend damaged tissue.
Q:
Would plant roots exhibit gravitropism in outer space? Why or why not?
Q:
A mutant plant is found in which the seeds germinate far too early. Which hormone is likely involved and why?
Q:
What happens when a plant has "foolish seedling" disease?
Q:
A mutant plant that does not exhibit phototropism is found. This plant has a mutation involving what hormone?
Q:
__________ is a response to changes in length of night relative to length of day.
Q:
In some plants, the direction of growth changes in response to contact with an object. This is called __________.
Q:
Abscisic acid promotes bud and seed __________, and it limits water loss by promoting stomatal closure.
Q:
__________ promotes senescence and abscission. It also inhibits growth of roots and stems.
Q:
__________ stimulate cell division, release lateral buds from apical dominance, and inhibit senescence.
Q:
Auxins lengthen coleoptiles, shoots, and roots by promoting cell __________.
Q:
__________ lengthen stems, break dormancy in seeds and buds, and stimulate flowering.
Q:
__________ secreted by one plant cell alter the activity of a different cell.
Q:
__________ and cues from the environment coordinate plant development, which is the formation and growth of tissues and parts in predictable patterns.
Q:
Abscission and dormancy are triggered by environmental cues such as seasonal changes in __________ or __________.
Q:
Respond to the following statements in reference to the five plant hormones listed below.
a. auxins
b. gibberellins
c. cytokinins
d. abscisic acid
e. ethylene
This hormone promotes bud and seed dormancy.
Q:
Respond to the following statements in reference to the five plant hormones listed below.
a. auxins
b. gibberellins
c. cytokinins
d. abscisic acid
e. ethylene
This hormone is a gas that promotes ripening.
Q:
Respond to the following statements in reference to the five plant hormones listed below.
a. auxins
b. gibberellins
c. cytokinins
d. abscisic acid
e. ethylene
This hormone stimulates embryo formation in seeds.
Q:
Respond to the following statements in reference to the five plant hormones listed below.
a. auxins
b. gibberellins
c. cytokinins
d. abscisic acid
e. ethylene
Hormones involved in stem elongation and closely related chemically to certain weed killers like 2,4-D.
Q:
Respond to the following statements in reference to the five plant hormones listed below.
a. auxins
b. gibberellins
c. cytokinins
d. abscisic acid
e. ethylene
Hormones most closely associated with cell division.
Q:
Vernalization
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Pfr
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Long-day plant
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Target cell
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Short-day plant
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Circadian
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Phytochrome
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Auxin
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Gibberellin
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Salicylic acid
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Ethylene
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Coleoptile
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Biennial
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Annual
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Abscisic acid
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Q:
Which plant hormone listed below is responsible for the symbiotic relationship shown in the above figure?
a. auxin
b. gibberellin
c. cytokinin
d. jasmonic acid
e. abscisic acid
Q:
A plant secretes ____ when it needs to respond defensively to a pathogen.
a. salicylic acid
b. systemin
c. brassinosteroids
d. mineralocorticoids
e. nitric oxide
Q:
The requirement of cold weather before a particular plant process occurs (e.g., germination) is known as
a. the biological clock.
b. vernalization.
c. photoperiodism.
d. biennial life cycle.
e. biorhythm.
Q:
Even though the autumn may be unusually warm, the leaves from deciduous trees begin to drop during September. Which of the following is the best explanation?
a. The trees are responding to shorter days.
b. The autumn months are usually drier because the summer rains have tapered off.
c. The effects of phototropism are operating "right on schedule."
d. There is not enough sunlight to carry on photosynthesis any longer.
e. None of these are the best explanation.
Q:
Use the figure above to answer the following questions.
Gene transcription is induced by
a. A.
b. B.
c. C.
d. D.
e. none of these.
Q:
Use the figure above to answer the following questions.
The effect of red light on phytochrome is indicated by
a. A.
b. B.
c. C.
d. D.
e. none of these.
Q:
Short-day plants
a. flower in early spring.
b. will not bloom until they have been exposed to a dark period longer than a critical length.
c. flower in the fall.
d. will not bloom if their dark period is interrupted by a short pulse of intense red light.
e. do all of these.
Q:
Plants cannot ____ in the dark.
a. grow
b. respire
c. move
d. utilize chlorophyll
e. sense light
Q:
Phytochrome is converted from the inactive to the active form by being exposed to light of what color?
a. far red
b. red
c. yellow
d. blue
e. none of these
Q:
The pigment responsible for photoperiodism is
a. chlorophyll.
b. xanthophyll.
c. anthocyanin.
d. phytochrome.
e. phytoerythrin.
Q:
Photoperiodism is the
a. duration of flowering in a plant.
b. amount of light needed by a plant to exhibit normal growth.
c. response of a plant to the duration of light and darkness.
d. light phase of photosynthesis during which photolysis of water occurs.
e. opposite of photorespiration.
Q:
Rhythms that are repeated every 24 hours are
a. sleep movements.
b. tropisms.
c. physiological requirements.
d. circadian rhythms.
e. biological clocks.
Q:
Which is(are) the principal substance(s) that regulate(s) thigmotropism?
a. auxin and ethylene
b. gibberellin and ethylene
c. abscisic acid and auxin
d. cytokinin and abscisic acid
e. none of these
Q:
The plant movement in the above figure is caused bya. auxin differences in two sides of the coleoptile.b. gibberellin released in one side of the leaf.c. abscisic acid in two sides of the stems.d. salicylic acid in two sides of the roots.e. none of these.
Q:
The effect of directional growth shown in the above figure is known to be caused bya. thigmotropism.b. gravitropism.c. abscisic acid.d. salicylic acid.e. all of these.