Acid-fast organisms are seen on a section of lung within normal alveolar sacs. They appear to lie slightly out of the plane of the section. This is most likely the result of:
a) contamination from the flotation bath
b) a section that is too thick
c) poor mounting technique
d) the disease process
Answer: a) contamination from the flotation bath
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The preassembled carbohydrate tree is added on_____ residue
Fill in the blank(s) with the appropriate word(s).
Each of the following molecules is an electron carrier in the electron transport system except
A) flavoproteins. B) iron-containing cytochromes. C) iron-sulfur proteins. D) coenzyme Q. E) All of the above are electron carriers.
In the sodium-potassium pump, sodium ion release causes two K+ ions to be released into the cell
__________________ Indicate whether the statement is true or false.
The absorption of fats differs from that of carbohydrates in that _____
A) fat absorption primarily occurs in the stomach, whereas carbohydrates are absorbed from the small intestine B) carbohydrates need to be emulsified before they can be digested, whereas fats do not C) most absorbed fat first enters the lymphatic system, whereas carbohydrates directly enter the blood D) fats, but not carbohydrates, are digested by bacteria before absorption