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BIO 152 FINAL PRACTICE EXAM QUESTIONS AND ANSWERS
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BIO 152 FINAL PRACTICE EXAM QUESTIONS AND ANSWERS
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BIO 152 FINAL PRACTICE EXAM QUESTIONSAND ANSWERS.
High levels of ADH activity would result in:
Correct Answer -A smaller volume of more concentrated urine
Best description of the mechanism of steroid action
Correct Answer -Forms complexes with receptors that directly influence
transcription of DNA
True or False: A hormone will always have the same effect on every cell
that has receptors on it
Correct Answer -False
An example of a tropic hormone:
Correct Answer -ACTH
After thyroid removal, you would see:
Correct Answer -High TSH, low T3 and T4
A human with a functional SRY gene will:
Correct Answer -Produce testosterone and anti-Mullerian hormone
A mutation in the 5a reductase gene prevents:
Correct Answer -Conversion of testosterone into dihydrotestosterone
Semen is sperm combined with fluid from what 2 structures
Correct Answer -Seminal vesicles and prostate
,True or False: The vaginal opening and the urinary opening are the same
structure
Correct Answer -False
High levels of _____ are produces by the _____ after ovulation
Correct Answer -Progesterone
Corpus luteum
In many land animals, cell divisions during cleavage are unequal
because:
Correct Answer -The yolk is unevenly distributed between animal and
vegetal pole
Nervous and sensory systems are derived from what germ layer?
Correct Answer -Ectoderm
Adult stem cells:
Correct Answer -Are multipotent
Putting your hand on the stove will make what neuron carry that
information to the central nervous system
Correct Answer -Sensory neuron
A depolarizing graded potential will:
Correct Answer -Make membrane potential less negative
,During the falling phase of an action potential:
Correct Answer -Na+ channels close, K+ channels open
True or False: All action potentials lead to the same magnitude voltage
change no matter how strong the stimulus is
Correct Answer -True
Movement of what ion across neuron membranes allows
neurotransmitters to be released into the synapse:
Correct Answer -Ca2+
Inhibitory post-synaptic potentials (IPSPs):
Correct Answer -Make it more difficult to for a cell to generate an action
potential
After eating a large meal and relaxing, what divisions of the nervous
system are working
Correct Answer -Autonomic and parasympathetic
How do mutations contribute to evolution?
Correct Answer -Random mutations create raw material for natural
selection
Polynesians established new populations on islands by traveling in
groups of <100 people. This is an example of:
Correct Answer -The Founder Effect
, True or False: Evolution is fairly controversial among both the general
public and among scientist
Correct Answer -False
The fact that humans, whales, bats, and cats all have similar limb bones
is an example of:
Correct Answer -anatomical similarities
Why do viruses tend to mutate faster than humans genomes? (two
answers)
Correct Answer -Most viruses have RNA genomes
Viruses reproduce faster than humans
True or False: Natural selection is the mechanism by which all evolution
occurs
Correct Answer -False
According to the Biological Species Concept, two (2) organisms are
considered the same species if:
Correct Answer -They can mate together and produce fertile offspring
Warbler birds sing to attract mates. If a group split and songs diverge,
they may undergo:
Correct Answer -Behavioral reproductive isolation
The concept "punctuated equilibrium" states that:
Correct Answer -Evolution tends to occur rapidly at some times and more
slowly at other times
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