BILD 2 Midterm 2 Review Sheet

BILD 2 Midterm 2 Review Sheet - 1) Which of the following...

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1) Which of the following is NOT descriptive of endotherms? A. efficient circulatory and gas exchange systems B. ability to sustain vigorous activity C. high metabolic rate and retained metabolic heat D. ability to deal with terrestrial temperature fluctuations E. energetically efficient and relatively inexpensive 2) The least  reliable indicator of an animal's metabolic rate would be the amount of A. ATP produced within its cells. B. water it drinks. C. oxygen it inspires. D. carbon dioxide it expires. 3) A synaptic terminal needs to actively pump out (to the extracellular space) the following ions? i. Na + ii. K + iii. Ca 2+ iv. endorphins A. i. and iii. B. iii. only C. ii. and iii. D. i. and iv. E. i., ii., and iii. 4) Consider the energy budgets for a human, an elephant, a penguin, a mouse, and a python. The ________ would have the highest total annual energy expenditure, and the ________ would have the highest energy expenditure per unit mass. A. elephant; mouse B. elephant; human C. human; penguin D. mouse; python E. penguin; mouse 5) Channels that pass the major ion current during the initial, rising phase of an action potential have which of the following properties? i. pass K+, but not Na+ ions ii. pass Na+, but not K+ ions iii. open in response to the neuron membrane potential becoming more positive than a threshold value iv. close after the membrane potential drops to a negative value v. are refractory to further stimulation after their inactivation gate closes (for a few msec) vi. do not open immediately upon stimulation, but open after a delay of a few msec A. i., iii and v. only B. ii, iii, iv and vi only C. ii, iii, and v only D. ii, iv, and vi only E. i, v and vi only 6) The drug Prozac is used to treat depression. It works by A. blocking reuptake of serotonin. B. preventing the death of dopamine-producing neurons. C. increasing the synthesis of endorphins.
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D. increasing the rate of action potential firings. E. stimulating neurotransmitter release. 7) Given the steps shown below, which of the following is the correct sequence for transmission at a chemical synapse? 1. Neurotransmitter binds with receptors associated with the postsynaptic membrane. 2. Ca2+ ions rush into neuron's cytoplasm. 3. Action potential depolarizes the synaptic terminal membrane. 4. Ligand-gated ion channels open. 5. Synaptic vesicles release neurotransmitter into the synaptic cleft. A. 1, 2, 3, 4, 5 B. 2, 3, 5, 4, 1 C. 3, 2, 5, 1, 4 D. 4, 3, 1, 2, 5 E. 5, 1, 2, 4, 3 8) Which of the following does not form part of the thin filaments of a muscle cell? A. actin B. troponin C. tropomyosin D. myosin E. calcium-binding site 9) Which of the following animals is mismatched with its nervous system? A. sea star (echinoderm) – central nerve ring with radial nerves
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BILD 2 Midterm 2 Review Sheet - 1) Which of the following...

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