Seth purchased five pounds of live crayfish and realized that the outer shells were made of a tough carbohydrate similar to that used to make the carapace of a cockroach. What do you think the outer shells of the crawfish are made of?
A. glycogen
B. fibrin
C. chitin
D. cellulose
E. amylopectin
Answer: C
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Which condition is a major concern for IV drug users?
a. endocarditis b. tachycardia c. myocarditis d. “blue babies” e. rheumatic fever
The upper portion of the intestine through which most of the glucose and amino acids are absorbed into the bloodstream
What will be an ideal response?
The malleus is also called the
A) stirrup. B) hammer. C) anvil. D) cochlea. E) pinna.
What is different about the way that NADH and FADH2 donate electrons to the electron transport chain?
A. NADH is oxidized and FADH2 is reduced. B. NADH contributes its electrons to the first transmembrane complex in the electron transport chain and FADH2 contributes its electrons after the first transmembrane complex. C. More protons are transported into the intermembrane space of the mitochondria in response to one molecule of FADH2 as compared to the number of protons transported in response to one molecule of NADH. D. The electrons from NADH ultimately go on to reduce oxygen to generate water, whereas the electrons from FADH2 are used to reduce pyruvate to lactate.