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Unit 2 Exam Micro
Terms in this set (56)
What do all living organism use to get instant energy?
Feedback Inhibition is another term for
Enzymes work by increasing the number of collisions between substrate molecules
The breakdown of large molecules into small ones is termed
Creatine phosphate+ADP---->Creatine+ATP is an example of
The loss of electrons by an organic compound is termed
In an irreversible enzymatic reaction, what is consumed
Enzymes are which biomolecule
Where does a substrate bind to an enzyme?
Many enzyme coenzyme are actually
How many major pathways are in cellular respiration?
The first pathway in cellular respiration is
How many ATP does it require to "kickstart" glycolysis?
Cellular respiration requires ____ to get the maximum energy out of glucose
How many ATP (net) do you get from the glycolysis from 1 glucose molecule?
The Krebs Cycle is also known as the
Citric acid cycle
These 2 vitamins carry high energy electrons
NADH and FADH2
Where are glycolysis and The Krebs cycle located in a bacterial cell?
During respiration, how many total NET ATP do bacteria get from 1 glucose molecule?
Where are the electron transport proteins in bacteria?
cell (plasma) membrane
Bacteria that grow at high temperatures are called
where do you find halophiles
oceans & seas
bacteria divide by a process called
Growth curves of bacteria are plotted using a
logarithmic base 10 scale
Staring with 1 bacterium, after 3 generations how many bacteria would be present?
Which phase of the growth curve are bacteria dying and dividing at the same rate?
The most common indirect method to measure bacterial growth is
When performing plate counts only with ___ to ___ CFU's shpuld be counted
Bacteria that grow at low temperatures are called ?
Starting with 1 bacterium, after 4 generations how many bacteria would be present?
Which phase of the growth curve are bacteria adapting to their environment?
A modern instrument that uses a laser to count cells is a
Which of the following are the LAST source most bacteria use to generate energy?
. Lipids are made of which 2 components below?
glycerol and fatty acids
Where in ATP are the high energy bonds located ?
between the last 2 phosphate groups
How many TOTAL ATP are made by a bacteria during Glycolysis from one glucose molecule ?
4 (4 Total - 2 Net)
Which kind of ATP synthesis occurs in the Kreb's cycle ?
Cytochromes are found in WHICH pathway?
electron transport chain
Most bacterial human pathogens are ______ and grow in a(n) ___________.
mesophiles ; neutral pH
Bacteria that can grow in atmospheric O2 or without any O2 are called :
You inoculate a broth with 4 bacteria. The generation time of the bacteria is 2 hours. Ignoring the time for the lag phase, how many bacteria would you have after 16 hours ?
A Petroff-Houser chamber is used to :
Which technique would you use to count a bacteria that is an aerobe?
To sterilize liquids in an autoclave the temperature must reach _____; the pressure _______; for at least ___________.
121 C; 15 psi; 15 minutes.
An example of a halogen disinfectant is :
The primary target in bacteria of solvent disinfectants like alcohol is :
Disk diffusion is a method used to :
measure antimicrobial activity of chemicals
Which is the most resistant to disinfectants?:
Mycobacteria (waxy cell walls)
When disinfecting surfaces, a heavier bacterial load _________ when compared to a lightly contaminated area.
takes more time
Which of these enzymes is missing from anaerobic bacterial species?
The generation time GT for a species of bacteria can be calculated from which portion of the growth curve.
Exponential growth Phase
Which of these pathways is primarily anabolic (only) ?
Calvin Benton cycle
Which of these is an enzyme ?
lactic dehydrogenase (ends in -ase )
Which of these is an heavy metal disinfectant ?
How many ATP can be created by 1 molecule of NADH entering the Electron Transport System ?
Which processes are occurring in the Electron Transport System ?
chemiosmosis and oxidative phosphorylation
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