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BIOL 203 EXAM 2 TEST QUESTIONS AND ANSWERS LATEST UPDATED MULTIPLE CHOICE
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BIOL 203 EXAM 2 TEST QUESTIONS AND ANSWERS LATEST UPDATED MULTIPLE CHOICE
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BIOL 203 EXAM 2 TEST QUESTIONS ANDANSWERS LATEST UPDATED MULTIPLE
CHOICE.
A new disease is discovered that is due to lack of a type of growth factor
being released into the extracellular fluid around the cell.
What type of signaling is most likely impaired by this disease?
A) Be tacrine
B) Paracrine
C) Intracrine
D) Endocrine
E) Angiotensin
Verified Answer -B) Paracrine
The primary role of oxygen in cellular respiration is to
A) act as an acceptor for electrons and hydrogen, forming water
B) combine with carbon, forming CO2
C) combine with lactate, forming pyruvate
D) catalyze the reactions of glycolysis
E) yield energy in the form of ATP as it is passed down the respiratory chain
Verified Answer -A) act as an acceptor for electrons and hydrogen, forming
water
How does caffeine act on a cell?
, A) blocks phosphodiesterase thereby increasing cAMP levels
B) binds directly to receptor tyrosine kinase
C) opens ligand-gated ion channels
D) binds directly to G-protein coupled receptors
E) none of the above
Verified Answer -A) blocks phosphodiesterase thereby increasing cAMP
levels
What is the primary function of the Calvin Cycle?
A) use ATP to release carbon dioxide
B) use NADPH to release carbon dioxide
C) transport RuBP out of the chloroplast
D) split water and release oxygen
E) none of the above
Verified Answer -E) none of the above
Which of the following is true for catabolic pathways?
A) they are usually non-spontaneous chemical reactions
B) they consume energy to build up polymers from monomers
C) they release energy as they degrade polymers to monomers
D) they represent endergonic reactions
E) none of the above
Verified Answer -C) they release energy as they degrade polymers to
monomers
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