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1. Integral membrane proteins are? a. Amphipathic
a. Amphipathic
b. Hydrophobic
c. Hydrophilic
2. When a virus integrates its DNA into the host cell's a. provirus
chromosomes, it is called?
a. provirus
b. early virus
c. pre-virus
3. Steroids are made of? c. four-ringed hydrocar-
a. two-ringed hydrocarbon skeleton bon skeleton
b. six-ringed hydrocarbon skeleton
c. four-ringed hydrocarbon skeleton
4. ATP is generated using? a. proton-motive force
a. proton-motive force
b. electron-motive force
c. both proton and electron motive force
5. Which of the microscopes allows users to visualize two c. Phase Contrast
dimensional images of nuclear membranes?
a. TEM
b. SEM
c. Phase Contrast
6. Cell wall is present in? b. bacteria and plant
a. plant and animal
b. bacteria and plant
c. animal and bacteria
7. a. CAM
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, Cell Biology Test 1 (retake)
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Which of the following type of carbon fixation is found
in plants that live on dry and arid region with high
temperature and low precipitation?
a. CAM
b. C3
c. C5
8. The number of substrate molecules converted to prod- b. turnover number
uct per unit time per enzyme molecule at V max is
called?
a. efficiency rate
b. turnover number
c. maximal velocity
9. According to a tenet of modern biology, all living or- b. LUCA
ganisms evolved from a single, common ancestral cell
that lived more than three billion years ago. This an-
cient cell is often referred to as?
a. last common cell
b. LUCA
c. first common cell
10. DNA sequencing is so rapid and cost-efficient that vir- a. metagenome
tually all of the genes present in the microbes of a giv-
en habitat can be sequenced, generating a collective
genome called?
a. metagenome
b. thetagenome
c. betagenome
11. The porphyrin ring of chlorophyll molecule has a cen- a. Magnesium atom
tral?
a. Magnesium atom
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