During strenuous exercise, you may notice that your muscles burn. Which of the following statements best explains this phenomenon?
A) Proteins are being digested to provide energy.
B) Carbon dioxide is building up in muscle and changing the pH.
C) Without oxygen, pyruvate is being converted to lactic acid.
D) ADP is accumulating, which produces a burning sensation.
E) Pyruvic acid causes muscle pain.
C) Without oxygen, pyruvate is being converted to lactic acid.
You might also like to view...
Answer the following statements true (T) or false (F)
1. All human warts are caused by viruses in the genus Papillomavirus. 2. Chickenpox and shingles are caused by the same virus. 3. Koplik spots are a sign of smallpox. 4. Mumps is a rather mild disease, without any serious complications. 5. West Nile virus is most commonly transmitted by tick bite.
What is the correct path a smell sensation takes
on its way to the brain?
a. mechanoreceptors>>olfactory bulb>>olfactory tract>>cerebrum b. chemoreceptors>>olfactory bulb>>olfactory tract>>cerebrum c. mechanoreceptors>>olfactory tract>>olfactory bulb>>cerebrum d. chemoreceptors>>olfactory tract>>olfactory bulb>>cerebrum e. chemoreceptors>>olfactory bulb>>olfactory tract>>cerebellum
Blockage of the common bile duct would be expected to affect
A. protein digestion. B. lipid digestion. C. carbohydrate digestion. D. cellulose digestion. E. nucleotide digestion.
A(n) ________ is an example of a chordate that is not a vertebrate
A) lancelet B) echinoderm C) bird D) fish