Soil mineral particles that are less than 0.002 mm in diameter are called ____
a. sand
b. humus
c. clay
d. silt
e. microparticles
ANSWER: c
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Enzymes classified as ________ convert chemical
bond energy to light energy. a. catalases b. lipases c. proteases d. amylases e. luciferases
It is believed that eukaryotes evolved their mitochondria from a symbiotic relationship with a free-living aerobic bacteria.
Answer the following statement true (T) or false (F)
Who is credited with proposing that prebiotic chemical conditions could lead to the evolution of complex molecules and, eventually, to living organisms?
A) Alexander Oparin and John Haldane B) Stanley Miller C) Francisco Redi D) Louis Pasteur E) Sidney Altman
Several amino acids joined together form a(n):
A) monosaccharide. B) polypeptide. C) fatty acid. D) polysaccharide. E) amine.