Other Biology Answers

15. All of the following are functions of the nephron EXCEPT
a. maintenance of pH
b. maintenance of electrolyte balance
c. control of red blood cell absorption
d. regulation of sodium concentration
e. secretion of hydrogen ions

Frameshift mutations usually are
a. semiactive
b. able to mask the normal
c. lethal
d. capable of reversion
e. transitory

13. Which means of circulation is characteristic of all organisms
a. Capillary action
b. Necrosis
c. Phagocytosis
d. Diffusion
e. Crenation

During glycolysis energy is temporarily stored in NADH and then released during the production of
a. ATP
b. ADP
c. Pyruvic acid
d. Citric acid
e. Lactic acid

Sugar can be made in the dark if the chloroplasts are provided with a continuous supply of
a. chlorophyll
b. ATP and NADPH
c. ADP and NADP+
d. oxygen
e. water

A compound in cells that functions as an enzyme, a transport molecule, and a receptor site is
a. a lipid
b. a protein
c. a carbohydrate
d. a starch
e. water

Radioactive isotopes used in trace amounts are useful in diagnosing abnormal conditions. Radioiodine is used in studies of the
a. adrenal cortex
b. liver
c. spleen
d. gonads
e. thyroid

Chromosomes do NOT occur in pairs in
a. body cells
b. somatic cells
c. fertilized eggs
d. gametes
e. zygotes

In enzyme synthesis, mRNA functions as
a. an activator
b. an enzyme
c. a source of peptides
d. an adaptor
e. a template

List the assumptions required for the Hardy Weinberg equilibrium.