1)Photoheterotrophs are best
described as organisms that obtain
energy to make ATP
A) from organic compounds, but use
sunlight to produce carbon sources.
B) and organic compounds from
sunlight.
C) from sunlight but cannot make
organic compounds from CO2.
D) from some forms of chemicals.
E) from organic compounds - ANSWER-c
10) NADP+ is the coenzyme of choice
in _______ while NAD+ is the
coenzyme of choice in _________
reactions.
A) anabolic; catabolic
B) catabolic; anabolic
C) metabolic; anabolic
D) anabolic; both catabolic and
anabolic
E) both catabolic and anabolic;
catabolic - ANSWER-a
11) Which of the following statements
correctly characterizes the
relationship between NADP+/NADPH
and NAD+/NADH?
,becker's world of the cell ch 11
A) Both are used extensively during
photosynthesis in oxygenic
phototrophs.
B) Neither are helpful to oxygenic
phototrophs.
C) NADP+/NADPH has an extra
phosphate compared to NAD
+/NADH.
D) NADP+/NADPH is used primarily
for catabolic reactions
E) Only NAD+/NADH is used to
transport electrons and protons - ANSWER-c
12) The Emerson enhancement effect
A) was proposed by Robert Emerson
in the 1980s.
B) states that there are three or four
separate photoreactions.
C) is a synergistic phenomenon.
D) is the result of two distinct
photosystems.
E) both C and D - ANSWER-e
, becker's world of the cell ch 11
13) The relationship between
photosystem I (PSI) and photosystem
II (P8II) is correctly described by
which of the following statements?
A) PSI absorbs only short wavelengths
of light.
B) Electrons are excited by PSI or
PSII, but not both.
C) PSI is designated P700, whereas
P5II is designated P680.
D) The absorption maximum of PSII is
700 nm.
E) The absorption maximum of PSI is
680 nm - ANSWER-c
14) Plastocyanin (PC)
A) is a mobile electron carrier.
B) is also called plastoquinol.
C) carries only a single electron at a
time.
D) both A and C
E) choices A, B, and C - ANSWER-d
15) The ATP synthase complex in the
thylakoid membrane
A) contains an embedded CF 1
component and a protruding CF0