Answers should be typed in Arial/Times New Roman, font 12, single line spacing, one-inch margins.
• Each answer should be ½-1 page long.
• Calculation questions should show the formula and all steps.
• References (as applicable) to be formatted using American Journal of Physiology. Provide references at the end of each question. Also include in-text citations.
1. A student decided to determine which food supplement would ideally give him more energy- maltose or pyruvic acid He decided to calculate the net ATP yield from one molecule of maltose (disaccharide composed of 2 glucose molecules) and compare to three molecules of pyruvic acid. Provide the calculations for ATP generation from both molecules if they were completely oxidized and justify your answer. (Note: Assume the energy required to break these molecules is negligible compared to energy generated)
2. State whether true or false AND in each case explain why.
a. Transporters allow solutes to cross the membranes at a much higher rate than channels.
b. Ouabain/digitalis is used for patients with heart disease as it blocks calcium channels.
c. Some amphiphilic molecules form micelles in aqueous environments while others form bilayers.
d. Photosynthesis is affected by wavelength of light, temperature, and duration of light exposure.
3. Briefly explain the following statements:
a. Neither aqueous pores nor active transporters are gated. Why are ion channels gated?
b. Neuromuscular transmission involves the sequential activation of several ion channels.
c. Rotenone causes cell death by increasing oxidative stress.
4. Differentiate the following-
a. Electron transport in mitochondria and electron transport in chloroplast.
b. Glucose transport in intestinal epithelial cells after a meal compared to glucose uptake after an overnight fast.
Last Completed Projects
| topic title | academic level | Writer | delivered |
|---|