這是考卷B~
黃色字體為答案
=============================這是考古題分隔線=================================
General Biolody Midterm Exam (B)
01. The committed step of glycolysis is phosphofructokinase, which is inhabited
by:
a) high concentration of fructose 6-phosphate
b) high concentration of ADP
c) high concentration of ATP
d) high concentration of fructose 1,6-bisphosphate
02. In eukaryotic organisms, fermemtation occurs:
a) in the presence of oxygen
b) in the absence of oxygen
c) at all times
d) in the presence of CO2
03. How many carbon atoms are in the molecues that participate in the energy-
yielding (eergy pay-off) reactions in the process of glycolysis
a) six carbons
b) four carbons
c) three carbons
d) two carbons
04. Why not just stop at pyruvate in the absence of oxygen? Why lactate?
a) The reaction from pyruvate to lactate converts NADH back to NAD,
which is required for glycolysis.
b) The reaction from pyruvate to lactate converts ADP to ATP.
c) The reaction from pyruvate to lactate converts ATP to ADP.
d) The reaction from pyruvate to lactate generates energy.
05. Of the following processes, which feeds the elctron transport chain?
a) just the Kerbs cycle
b) glycosis
c) All NADH generating processes including glycolysis, the Kerbs
cycle, and the conversion of pyruvate to acetly CoA
d) fermentation
06. What is the final electron acceptor in the electron transport chain?
a) NADH
b) carbon dioxide
c) acetyl CoA
d) oxygen
07. In prokaryotes, the components of the electron transport chain are located
in the:
a) Inner membrane of mitochondria
b) outer membrane of mitochondria
c) in the cell membrane
d) in the matrix of mitochondria
08. Which of the following is the correct path of electrons during the light
reactions?
a) photosystem II: electron transport chain: photosystem I
b) photosystem I: electron transport chain: photosystem II
c) electron transport chain: photosystem I: photpsystem II
d) photosystem II: photosystemI: electron transport chain
09. Which electron transport chain produce NADPH in the chloroplast?
a) the electron transport chain after the last photosystem
b) the electron transport chain between the two photosystems
c) the electron transport chain priduces ATP
10. When photosystem I absorbs a photon, electrons are ejected from the
reaction center. What is the final destination of these electrons?
a) The electrons are used to replace other electrons lost from
photosystem II
b) Electrons end up being captured by the elctron carrier NADPH
c) They are accepted directly by ATP
d) They were last seen at the tables in Vegas
11. Which of the following property of carotenoids pigments is not true?
a) extend the range of wavelength that can drive photosynthesis
b) can protective chlorophyll from bleaching
c) can destroy free radicals
d) which absorb blue and red wavelength
e) protect pkants from the damaging effects of sunlight
12. When a sample of algae was illuminated, which of the following light
quality is the most effective in the rate of photosynthesis?
a) wavelength 700nm
b) wavelength 680nm
c) wavelength of both 100nm and 680nm
d) wavelength 600nm
e) wavelength of both 700nm and 600nm
13. which component of the electron transport chain can carry protons from one
side of the thylakoid membrane to the other side
a) plastoquinone
b) chlorophyll
c) cytochrome complex
d) ferredoxin
14. The initial product of the Calvin cycle (carbon reduction) is:
a) glyceraldehydes 3-P (G3P)
b) ribulose-1, 5-bisphosphate (RuBP)
c) 3-phosphoglycerate
d) glucose
15. Which of the following can oxidize water?
a) photosystem I and II
b) photosystem I
c) photosystem II
d) ATP synthase
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