Which of the following does correctly match the mineral with one of its functions?
a. manganese—may enhance the function of insulin
b. selenium—important for the metabolism of carbohydrates and amino acids
c. fluoride—hardens tooth enamel
d. chromium—a co-factor for only four enzymes
Ans: c. fluoride—hardens tooth enamel
You might also like to view...
Some cyanobacteria are not blue-green, rather they are red or brown; this is due to the presence of the photosynthetic pigment ________.
Fill in the blank(s) with the appropriate word(s).
Bacterial sexually transmitted diseases include all of the following except
A. gonorrhea. B. syphilis. C. chlamydia. D. herpes.
After the discovery of T. aquaticus, biologists found
forms of life adapted to extraordinary levels of a. acidity. b. alkalinity. c. salinity. d. pressure. e. all of these.
Plants cannot fix nitrogen, but legumes are often called nitrogen fixers. Explain why this label is appropriate
What will be an ideal response?