Rickets is caused by

a. overexposure to UV radiation.
b. an excess of calcitonin.
c. inadequate amounts of vitamin D.
d. an excess of ascorbic acid.
e. a fetal deficiency of thyroid hormone.


C

Biology & Microbiology

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Which type of yeast is referred to as “brewer’s yeast”?

a. Candida insectamens b. Brettanomyces bruxellensis c. Saccaromyces cerevisiae d. Sporidiobolus johnsonii

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What happens to an ATP molecule after it has released a phosphate?

A) It becomes AMP and is recycled into proteins. B) It is phosphorylated and becomes ADP. C) It is converted into lactic acid and transported to the liver for disposal. D) It is secreted in urine as a waste product of cellular respiration.

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Which of these is a source of lactose?

a. potatoes b. milk c. sugar cane d. starch e. sugar beets

Biology & Microbiology