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36 Cards in this Set
- Front
- Back
Which of the following is the correct statement regarding competitive inhibition of enzymes? |
Competitive inhibition can be reversed by increasing substrate concentration |
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Which of the following is the correct statement regarding non–competitive inhibition of enzymes? |
Non–competitive inhibitors bind to the enzyme at a site other than the active site |
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How many molecules of ATP are produced by metabolizing 1 molecule of glucose in aerobic conditions? |
36 ATP for EUKARYOTES 38 ATP for PROKARYOTES |
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How many molecules of ATP are produced by metabolizing 1 molecule of glucose in anaerobic conditions? |
2 ATP for EUKARYOTES 2 ATP for PROKARYOTES |
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Fermentation is carried out in which environmental conditions? |
Anaerobic conditions |
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Fermentation allow cells to regenerate which molecule? |
NAD+ |
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What is the purpose of light dependent reactions of photosynthesis? |
Produce ATP |
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What is the purpose of light independent reactions of photosynthesis? |
Fixing carbon Produce glucose |
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How does DNA polymerase differentiate between the newly synthesized DNA strand & template strand? |
Methylation of the template strand (Old Strand) |
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What is the primary purpose of polymerase chain reaction? |
Amplify amount of genetic material (DNA or RNA) |
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Which of the following is NOT a target of anti–microbial agent against prokaryotic cells? |
Mitochondria |
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What is the purpose of applying high pressures in the autoclave? |
High pressure increases the temperature at which water turns into steam; allowing higher temperature steam to be achieved |
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What is the most common mechanism of action for a chemical anti–microbial agent (DISINFECTANTS)? |
Inactivating proteins by denaturation or alteration |
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Which of the following antibiotics is bactericidal? |
Aminoglycoside |
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Which of the following antibiotic is NOT BROAD SPECTRUM (i.e. effective against both gram positive & gram negative)? |
Penicillin (Gram +) |
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Which of the following organisms is NOT a LACTOBACILLALE (PRODUCE LACTIC ACID DURING fermentation) |
Bacillus |
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Which of the following Actinobacteria have a cell wall composed of waxy lipids and could only be stained by acid–fast stains? |
Mycobacterium |
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Which of the following intracellular parasites DOES NOT contain CELL WALLS? |
Mycoplasma pneumoniae |
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Which of the following does NOT belong to the CLASS Gammaproteobacteria (gram -)? |
Clostridium Tetani (gram +) |
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Which GENERA is NOT in the PHYLUM Spirochaetes (gram +)? |
Listeria (gram negative) |
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Which of the following phylum is NOT gram negative? |
Firmicute (gram +) |
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Viral envelopes are composed of? |
Portions of the host's cell membrane |
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Which of the following in NOT direct/indirectly caused by the release of histamine? |
Dolor |
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Which of the following cells produce antibodies? |
Plasma cells (Mature B cells – short life, weeks) |
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Which of the following statements regarding lymphocyte CELL RECEPTORS is true? |
BCRs highly specific TCRs degenerate |
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Passive immunization is conferred by the administration of which agent? |
Antibodies |
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Which type of vaccine has a risk of reactivation? |
Attenuated |
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Which type of immunoglobulin is found in natural passive immunization? |
IgA (Mother passes milk to baby) |
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When enough people in a population are vaccinated/immune against a disease, it prevents the disease from spreading within the population. This property is know as? |
Community Immunity Population Immunity |
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Which of the following toxins is NOT PRODUCED by the VIBRIO SP.? |
Neurotoxins |
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Which of the following FUNGI is an OBLIGATE PARASITE? |
Pneumocystis |
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Which of the following viruses IS NOT CAPABLE of REACTIVATION? |
Adenoviridae |
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Which of the following VIRUSES is the MOST STABLE in the EXTERNAL ENVIRONMENT (outside of a human host)? |
Papillomaviridae (warts, survive fomites for months) |
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Which of the following is NOT A RNA virus? |
HepaDNAviridae |
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Enterovirus are susceptible to which of the following treatments? |
Ionizing Radiation (kills everything) |
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Which of the following viruses are enveloped? |
Hepadnaviridae |