The portion of the molecule in box 5 of Figure 12-1 is:
a. a hydrogen bond.
b. a phosphate.
c. a nucleotide.
d. a pyrimidine.
e. a protein.
B
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The simplest sugars are called ____________________, and two of these sugars linked together form a(n) ____________________
Fill in the blank(s) with correct word
Bacteria that have a spherical shape are called ________.
A. coccus B. bacillus C. spheroid D. spirillum
What intestinal processes would be inhibited by a toxin that blocked the basolateral Na+/K+ ATPases on the intestinal epithelium? (Select all that apply.)
a. Movement of fatty acids across the apical membrane b. Transport of glucose into the epithelium across the apical membrane c. Transport of fructose into the epithelium across the apical membrane d. Transport of potassium into the epithelium across the basolateral membrane
As has been well-documented in recent years, certain populations and geographic regions can be much more vulnerable to environmental health issues like malaria and the use of DDT. Growing populations, with over 20-30% infected with HIV/AIDS, global climate change, and an environment that has experienced DDT applications for over 50 years, have led to increased outbreaks of malaria in the tropical regions of Africa. Which of the following nonhuman-related causes has most likely contributed the most to the increase in malaria in Africa?
A) increased insecticide resistance B) less money for mosquito abatement programs C) increased vulnerability of HIV-infected humans to malaria D) growing urban populations E) increased difficulty in treating malaria with antibiotics