Why do people need to eat more when it gets colder? All factors of life style stay the same year round.  a.the body has to produce more heat to mantain its set point, which requires a lot of extra energy b. the body undergoes more anaerobic metabolism in the winter c. vasconstruction is impeding how much energy is getting to the cells

Water-breathing aquatic endotherms are very rare because of... A. The low solubility of O2 in water B. The high rate of heat conduction in water C. The high metabolic rate required for heat generation D. The high rate of heat loss to water E. All of the above

Some cells that grow in the absence of O2 produce CO2. True or false justifies false ones.

Can you help me explain the counter-current exchange of heat between arteries and veins. Give examples where it happens and why?

In contrast to resting cells, muscle tissue in an active metabolic state will have ___________ ATP/ADP and __________ NADH/NAD+. Justify.a. high; highb. high; lowc. low; highd. low; lowe. medium; medium

1. If you start going to the gym and increase your muscle mass, your % of body fluids will a. increase. b. decrease. c. stay the same

CHOOSE THE CORRECT LETTER. 1.Glycogenesis is favored when there is low ATP concentration. Glycogenolysis is favored when there is a low ATP concentration.A.Only the second statement is correctBoth statements are correctC.Only the first statement is correctD.Neither statements are correct

In the 1930's a chemical known as DNP was touted as en effective diet pill. Weight loss was dramatic in patients taking this drug. However, to quote Efraim Racker (A New Look at Mechanisms in Bioenergetics, Academic Press, 1976, p. 155), ..."the treatment eliminated not only the fat but also the patients,...This discouraged physicians for awhile..." This drug works for weight loss, by causing the leakage of H+ across the inner mitochondrial membrane. Which of the following would you expect to see in patients taking DNP? Select the best answer. Question options:   decreased ability to produce ATP    increased ability to produce ATP   decreased ability to use Krebs cycle to produce ATP   slowing down the citric acid cycle.

6. The anaerobic ATP-PC system gives an individual to seconds of energy. a. 30; 60 b. 1; 5 c. 10; 15 d. 60; 120 7. What is/are the common method(s) used to measure energy expenditure by the body? a. Calorie (kcal) b. MET (metabolic equivalent) c. Pulses per second d. B and C