Zwitterions are amino acids that have no net electrical charge because ____
A) ?their side chains are not charged
B) ?they migrate to a neutral place in an electrical field
C) ?they are essential/indispensable
D) ?they have an amino group in their side chain
A
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Which hormones are responsible for maintaining blood glucose levels?
A) bicarbonate and chyme B) leptin and ghrelin C) testosterone and estrogen D) glucagon and insulin
Drying has been used as a method of preserving fruit for thousands of years.
Answer the following statement true (T) or false (F)
The sides of the tongue have taste buds that are only able to detect sweet-tasting items.
Answer the following statement true (T) or false (F)
An experiment in which the participants do not know whether they are receiving the treatment or placebo but the scientists do is called a
A. disorganized study. B. double-blind study. C. single-blind study. D. cause and effect study.