Question 1 (a) Discuss the Factors affecting the role of ATP in metabolism (b) Discuss The role and importance of ATP in metabolism

Question 14   a) Radioactive decay produces ionising radiation. Like all ionising radiation this can lead to harmful effects on living tissue due to cell damage including damage to DNA, mutation and cell death.  Contrast the differing health risks associated when working with alpha, beta or gamma radiation sources.  b) Describe some ways in which those working with radioactive sources and people in general can be protected against the risks of radiation exposure from such sources.

QUESTION 39 If you look at the McDonald's website, you can see that a Big Mac contains 563 kilocalories of energy. This energy is in the form of: Thermal energy Kinetic energy Chemical energy O Potential energy QUESTION 40 Which of the following statements about fermentation is TRUE? O all fermentation produces ethanol O fermentation only occurs under high-oxygen conditions O fermentation converts NADH to NAD+ fermentation produces ATP all of the above are true

Question 7 A patient's LDL has a value of 30 mg/dL and he is told the value is high. The normal value is 40-110 mg/dL. The nurse explains that LDL is the "bad" cholesterol and it should be lower because LDL transports modified cholesterol A) for storage in muscle for energy B) to the tissues to be used for the synthesis of membranes. C) from the tissues to the liver for elimination. D) for binding to fiber to be excreted from the body. O B O D O A

Question #55

What metabolic pathways are aerobic and which are anaerobic? What are the advantages and disadvantages to aerobic and anaerobic metabolism?

Question 3

Question 31 FLAG QUESTION Which of the following is NOT true? Answers A- D A Alcohol dehydrogenases are a class of zinc containing enzymes B Enzyme ction is a factor that affects drug metabolism Flavin containing monooxygenases catalyze only oxygenation reactions Quinone oxidoreductases belong to the molybdenum hydrolase enzyme family

Question 23 2 pts As it turns out, arsenic is a competitive inhibitor of pyruvate dehydrogenase. Suppose you add arsenic to human muscle tissue in a laboratory. What results would you expect to observe? I. Decreased ability of the tissue to relax after contraction II. Increased concentration of ADP in the mitochondrial matrix III. Increased concentration of lactic acid in the cytosol IV. Increased concentration of NADH and FADH2 in the mitochondrial matrix I, II, and IV II, III, IV I and II I and IV I, II, and III

Question 2 of 13 Fill in the blanks: Write C if only statement A is correct, H if only statement B is correct, E if both statements are correct, M if both statements are incorrect. A. The Michaelis-Menten plot shows that initially, the increase in the reaction velocity is relatively fast. B. Then after sometime, the change in the reaction velocity slows down and tapers off to a certain limit.