Question: The more the number of protein molecules in the sample solution, the greater is absorbance.
Answer Choices:
True
False
Answer: True
Question: Both glycogenesis and glycogenolysis are controlled primarily by the interplay between the two hormones insulin and glucagon.
Answer Choices:
Insulin
Glucagon
Fructose kinase
Glucagon hyperbolism
Answer: Both A and B are correct
Question: In glycoproteins carbohydrate is most often linked to threonine, asparagine or ______.
Answer: Serine
Question: Under stressful conditions epinephrine is released from the adrenal medulla. The release of epinephrine has which of the following effects on glucose metabolism?
Answer Choices:
Glycogenolysis is stimulated
Gluconeogenesis is inhibited
Adenylate cyclase is activated
Both A and B are correct
All of the above are correct
Answer: Both A and B are correct
Question: If the free energy change ΔG for a reaction is -46.11 kJ/mol, the reaction is:
Answer Choices:
ΔG equilibrium
endergonic
exothermic
exergonic
isothermic
Answer: exergonic
Question: Which is a measure of the pressure on the arterial wall as blood is being pumped through them?
Answer Choices:
Pulse Pressure
Diastolic Blood Pressure
Systolic Blood Pressure
Pulse Pressure
Answer: Systolic Blood Pressure
Question: Peptide bonds in the protein will react with the reagent and form a _____ colored complex.
Answer Choices:
Green
Yellow
Purple
Black
Answer: Purple
Question: What is a spectrophotometer?
Answer Choices:
An instrument used to measure the acidity/alkalinity of liquid samples.
An instrument used to measure the conductivity of electrical current through fluids.
An instrument used to measure the amount of light absorbed by liquid samples.
An instrument used to measure the density of liquid samples.
Answer: An instrument used to measure the amount of light absorbed by liquid samples.
Question: Determine the net charge of the following tetrapeptide at pH 4 that contains the amino acids represented by the single letters “KLTW”, such that K is at the amino-terminal end of the peptide and W is at the carboxyl-terminal end.
Answer Choices:
+2
+1
0
-1
-2
Answer: +1
Question: Enzymes are biological catalysts that enhance the rate of a reaction by:
Answer Choices:
decreasing the activation energy
decreasing the amount of free energy released
increasing the activation energy
increasing the amount of free energy released
increasing the energy of the transition state
Answer: decreasing the activation energy
Question: The detection reagent used in this lab experiment forms the colored product under _____ conditions.
Answer Choices:
We do not know
Acidic
Neutral
Alkaline
Answer: Alkaline