DNA molecules that shorten and thicken during cell division are known as _____
a. chromatids
b. chromatin units
c. chromosomes
d. ribosomes
c
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In the centrifuged sample of blood illustrated, which number indicates the layer containing water, plasma proteins, nutrients, and waste products?
A. 1 B. 2 C. 3 D. None of the answers is correct.
What happens to the ammonium ions that are removed from amino acids during deamination?
A) they combine with pyruvate and enter the citric acid cycle B) they combine with CO2 and enter the urea cycle C) they combine with fatty acids and enter beta-oxidation D) they are removed directly by the kidneys E) they combine with CO2 and are exhaled
Hyaluronic acid is a component of the ________
A) organic matrix B) osteocyte C) inorganic matrix D) mineralized salts
________ is the symptom generally brought on by coronary ischemia
A) Angina pectoris B) Memory loss C) A rash D) Hematuria E) Fluid in the lungs