Synthetic compounds similar to ____ are used to prolong the shelf life of vegetables such as lettuces and mushrooms
and to keep cut flowers fresh.
a. salicylic acid
b. jasmonates
c. abscisic acid
d. gibberellins
e. cytokinins
ANSWER: e
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Humans have a quasi-exponential growth curve because they can do which of the following?
a. Adapt to their current environment quickly. b. Produce many offspring at one time. c. Alter their environment like no other species on Earth. d. Produce offspring rapidly.
Which of these phases produces ATP?
Consider the three phases of glycolysis: (1) preparation and cleavage (Gly-1 to Gly-5) (2) oxidation (Gly-6 to Gly-7) (3) pyruvate formation (Gly-8 to Gly-10) A) 1 B) 2 C) 3 D) 1 and 2 E) 2 and 3
In the biosynthetic pathway for conversion from homoserine to methionine, you identify a Neurospora crassa double mutant Met1/Met2. This mutant will grow only if which supplement(s) are added to the minimal media?
A) homoserine only B) cysteine only C) homocysteine only D) cystathionine and homocysteine E) methionine only
Infection with Helicobacter pylori can cause ________
A) gallstones B) constipation C) tooth decay D) peptic ulcers