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Could someone plz help me solving these questions:
124. Which of the following processes occur after prolonged muscular exercise when oxygen debt is being paid?
a. Lactic acid in muscles continues to increase.
b. Most lactic acid undergoes gluconeogenesis in muscles.
c. Most lactic acid undergoes gluconeogenesis in the liver.
d. Most lactic acid undergoes gluconeogenesis in the brain and heart.
I think is C???
125. An analysis of an EKG shows P-waves occuring in the ST segment. This would indicate ectopic beats originating in the
a. Atria.
b. A-V node.
c. Lower portion of the Bundle of His.
d. Upper portion of the bundle of His.
I think is C ???
169. Which of the following explains why an increased filling of the ventricle during diastole causes a more forceful heart beat? The increased ventricular volume
a. Diminishes the refractory period of the ventricle.
b. Increases end-diastolic fiber length.
c. Facilitates conduction in the heart.
d. Produces a less than optimal load.
173. The process requiring a membrane and nonpenetrating solutes (e.g. proteins) BEST describes which of the following?
a. Osmosis.
b. Diffusion.
c. Epithelial transport.
d. Facilitated diffusion.
Ans: D.
176. Which of the following statements BEST describes GTP-binding proteins (G-Proteins)?
a. Are important components of steroid hormone signal transduction.
b. Catalyze the reaction which produces diacylglycerol/
c. Are tightly bound to adenylate cyclase.
d. Usually inactivate protein kinase C.
e. Are membrane proteins.
184. Cushing's syndrome is characterized by each of the following conditions EXCEPT one. Which one is this exception>
a. Increased protein anabolism.
b. Increased androgen levels.
c. Hyperglycemia.
d. Hypertension.
e. Hyperkalemia.
Have a, but not sure.
Please help, or correct me if I am wrong.
Toothcol.
124. Which of the following processes occur after prolonged muscular exercise when oxygen debt is being paid?
a. Lactic acid in muscles continues to increase.
b. Most lactic acid undergoes gluconeogenesis in muscles.
c. Most lactic acid undergoes gluconeogenesis in the liver.
d. Most lactic acid undergoes gluconeogenesis in the brain and heart.
I think is C???
125. An analysis of an EKG shows P-waves occuring in the ST segment. This would indicate ectopic beats originating in the
a. Atria.
b. A-V node.
c. Lower portion of the Bundle of His.
d. Upper portion of the bundle of His.
I think is C ???
169. Which of the following explains why an increased filling of the ventricle during diastole causes a more forceful heart beat? The increased ventricular volume
a. Diminishes the refractory period of the ventricle.
b. Increases end-diastolic fiber length.
c. Facilitates conduction in the heart.
d. Produces a less than optimal load.
173. The process requiring a membrane and nonpenetrating solutes (e.g. proteins) BEST describes which of the following?
a. Osmosis.
b. Diffusion.
c. Epithelial transport.
d. Facilitated diffusion.
Ans: D.
176. Which of the following statements BEST describes GTP-binding proteins (G-Proteins)?
a. Are important components of steroid hormone signal transduction.
b. Catalyze the reaction which produces diacylglycerol/
c. Are tightly bound to adenylate cyclase.
d. Usually inactivate protein kinase C.
e. Are membrane proteins.
184. Cushing's syndrome is characterized by each of the following conditions EXCEPT one. Which one is this exception>
a. Increased protein anabolism.
b. Increased androgen levels.
c. Hyperglycemia.
d. Hypertension.
e. Hyperkalemia.
Have a, but not sure.
Please help, or correct me if I am wrong.
Toothcol.