Consider a glucose molecule that is completely oxidized during the process of cellular respiration. What is
the correct sequence in the series of reactions?
I. glycolysis
II. phosphorylation
III. Krebs cycle
a. I >>> II >>> III
b. I >>> III >>> II
c. II >>> I >>> III
d. II >>> III >>> I
e. III >>> I >>> II
ANSWER: b
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The movement of these blocks suggests that _____
A) during evolutionary time, these sequences have separated and have returned to their original positions B) DNA sequences within these blocks have become increasingly divergent C) sequences represented have duplicated at least three times D) chromosomal translocations have moved blocks of sequences to other chromosomes E) higher mammals have more convergence of gene sequences related in function
An allele of the pea color gene specifies the enzyme Sgr, which normally functions in a pathway to break down chlorophyll during pea maturation, resulting in yellow mature peas. A second allele of the Sgr gene produces no enzyme and is the ________ allele.
A) dominant B) recessive C) wild-type D) functioning
A chemical interaction in which the products contain less free energy than the reactants is called a(n)
____________________ reaction.
Fill in the blank(s) with the appropriate word(s).A(n) ____ is the transition zone where two ecosystems meet and intergrade
a. intertidal zone b. ecotone c. range d. biome e. thermocline