BIOL 133 (18) Questions with CORRECT Answers
Question:
What is an example of potential energy? Select all that apply.
Answer:
light B. heat C. sound D. energy in chemical bonds E. concentration gradients
Question:
What examples describe the second law of thermodynamics? Select all that apply.
Answer:
a penny will fall when you pick up and let it drop B. a frying pan is on a hot
stove, when removed it will cool C. ice cubes will melt in a warm room D. donuts
nutrients are used to help you exercise
Question:
After many years of difficult research, your company invented a drug that
increases the enzyme rate for the synthesis of an important metabolite. Patients
with mutations in the enzyme lack the metabolite and have devastating symptoms.
Your team is thrilled to have a drug that speeds up the enzymatic rate. At your
celebration, the new intern pipes up: "You guys didn't have to do all that work
after all! Instead of giving patients this new drug, you could have just given
them the metabolite directly." Your response?
Answer:
Each enzyme can catalyze multiple reactions. It is not feasible to provide enough
of the metabolite to each cell directly. B. products of metabolic reactions are
not easily digestible, so it would pass through the patient undigested. C. she is
correct - this is an example of how pharmaceutical companies create expensive
drugs when a cheap solution would solve the problem D. it would have been much
easi
Question:
Neostigmine is a drug used to treat the disease myasthenia gravis. The drug binds
to the active site of acetylcholinesterase preventing breakdown of acetylcholine.
This drug is a(n)
Answer:
competitive inhibitor B. allosteric activator C. allosteric inhibitor D.
noncompetitive inhibitor
Question:
What is an example of potential energy? Select all that apply.
Answer:
light B. heat C. sound D. energy in chemical bonds E. concentration gradients
Question:
What examples describe the second law of thermodynamics? Select all that apply.
Answer:
a penny will fall when you pick up and let it drop B. a frying pan is on a hot
stove, when removed it will cool C. ice cubes will melt in a warm room D. donuts
nutrients are used to help you exercise
Question:
After many years of difficult research, your company invented a drug that
increases the enzyme rate for the synthesis of an important metabolite. Patients
with mutations in the enzyme lack the metabolite and have devastating symptoms.
Your team is thrilled to have a drug that speeds up the enzymatic rate. At your
celebration, the new intern pipes up: "You guys didn't have to do all that work
after all! Instead of giving patients this new drug, you could have just given
them the metabolite directly." Your response?
Answer:
Each enzyme can catalyze multiple reactions. It is not feasible to provide enough
of the metabolite to each cell directly. B. products of metabolic reactions are
not easily digestible, so it would pass through the patient undigested. C. she is
correct - this is an example of how pharmaceutical companies create expensive
drugs when a cheap solution would solve the problem D. it would have been much
easi
Question:
Neostigmine is a drug used to treat the disease myasthenia gravis. The drug binds
to the active site of acetylcholinesterase preventing breakdown of acetylcholine.
This drug is a(n)
Answer:
competitive inhibitor B. allosteric activator C. allosteric inhibitor D.
noncompetitive inhibitor
