Clicker Questions For Test 3
Animal Development
- 1.If Ca++ is not present in a myofibril, a muscle cannot contract because
- A.
ATP cannot bind to myosin
- B.
Myosin cannot bind from tropomyosin
- C.
Myosin cannot bind to actin
- D.
ADP cannot be converted to ATP
- 2.Which of the following is the correct statement about cells of the human retina?
- A.
Cone cells can detect color, but rod cells cannot
- B.
Cone cells are more sensitive to light than rod cells
- C.
Cone cells, but not rod cells, have a visual pigment
- D.
Rod cells are most highly concentrated in the center of the retina
- 3.When an odorant molecule binds to an olfactory receptor,
- A.
The odorant molecule is transported into the sensory cell
- B.
The odorant molecule serves as a neurotransmitter
- C.
The odorant molecule results in a change in the membrane potential of the sensory cell
- D.
The odorant molecule destroys the neurotransmitters
- 4.The pathway leading to the perception of sound by mammals begins with the
- A.
Hair cells of the organ of Corti, which rests on the basilar membrane
- B.
Hair cells of the organ of Corti, which rests on the hympanic membrane
- C.
Hair cells of the organ of Corti, which rests on the tectorial membrane
- D.
Hair cells of the organ of Corti coming in contact with the tectorial membrane
- 5.Why does your arm feel cold when you reach inside the refrigerator to get a container of milk?
- A.
Circulating levels of prostoglandins increase
- B.
The temperature of the blood circulating to the arm decreases
- C.
Thermoreceptors in the skin undergo accomodation, which increases their sensitivity
- D.
Theremoreceptors send signals to the posterior hypothalamus
- 6.sensory receptors
- A.
Produce different types of action potentials based on the stimulus
- B.
Respond to a single type of stimulus (heat, pressure, light, etc)
- C.
Increase the frequency of the action potentials when stimulated
- 7.Which of the following structures or regions is incorrectly paired with its function?
- A.
Limbic system-motor control of speech
- B.
Medulla oblongata-homeostatic control
- C.
Cerebellum-coordination of movement and balance
- D.
Corpus callosum-communication between the left and right cerebral cortices
- 8.The establishment and expression of emotions involves the
- A.
Frontal lobes and limbic system
- B.
Frontal lobes and parietal loes
- C.
Parietal lobes and limbic system
- D.
Frontal and occipital lobes
- 9.What part of the brain controls the heart rate?
- A.
Neocortex
- B.
Medulla
- C.
Thalamus
- D.
Pituitary
- 10.Which of the following activities would be associated with the parasympathetic division of the nervous system?
- A.
Rest and digestion
- B.
Release of both acetylcholine and epinephrine
- C.
Increased metabolic rate
- D.
Fight-or-flight response
- 11.Which of the following is associated with the evolution of a central nervous system?
- A.
Bilateral symmetry
- B.
Radial symmetry
- C.
Nerve nets
- D.
Excitable membranes
- 12.Neurotransmitters are released from axon terminals via
- A.
Osmosis
- B.
Active transport
- C.
Diffusion
- D.
Transcytosis
- E.
Exocytosis
- 13.The surface on a neuron the discharges synaptic vesicles is the
- A.
Dendrite
- B.
Axon hilock
- C.
Node of Ranvier
- D.
Postsynaptic membrane
- E.
Presynaptic membrane
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