Which describes a tissue in the human body that will most likely undergo
anaerobic respiration?
a. stomach muscles as they churn food
b. heart muscle during normal heart function
c. skeletal muscle near the end of an intense exercise session
d. skin tissue in a foot, which is far from the heart and lungs

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.