BIOD171 Portage Microbiology Final Exam with complete solutions
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Course
Microbiology
Institution
Microbiology
BIOD171 Portage Microbiology Final Exam with complete solutions
BIOD171 Portage Microbiology Final Exam with complete solutions
BIOD171 Portage Microbiology Final Exam with complete solutions
BIOD171 Portage Microbiology Final Exam with complete solutions
BIOD171 Portage Microbiology Final Exam...
BIOD171 Portage Microbiology Final
Exam with complete solutions
BIOD171 Portage Microbiology Final
Exam with complete solutions
What various functions do proteins have in a cell - CORRECT ANSWER Proteins may
facilitate the movement of materials in or out of a cell.
Some can act as enzymes that catalyze, or speed up, biochemical processes.
Others play a structural role while other proteins, such as filaments, enable movement.
What are the main morphologies of bacteria? - CORRECT ANSWER Bacteria can be
described as coccus (round/spherical),
bacillus (rod),
vibrio (curved rod)
spirillum (spiral/corkscrew).
What are the 4 main classifications of Eukarya - CORRECT ANSWER Animalia,
Plantae, Fungi or Protista
What are the primary cellular organelles described in this module? Be sure to know the
roles of each. - CORRECT ANSWER Ribosomes (protein synthesis)
ER (site of protein synthesis)
Golgi (protein modification and distribution) lysosomes (waste disposal),
mitochondria (ATP generation)
chloroplasts (plants only; site of photosynthesis).
True or False: Enzymes are polysaccharides that catalyze chemical reactions. -
CORRECT ANSWER False. Enzymes are proteins
What are usually metal ions known to assists enzyme during the catalysis reaction? -
CORRECT ANSWER Cofactors
Define catabolism - CORRECT ANSWER the breakdown of complex molecules in living
organisms, release of energy
Upon cellular injury, which metabolic process is involved during the growth and repair
phases of the cell? - CORRECT ANSWER The anabolic process would be active as it is
involved in the building up of small complexes into larger complexes.
Describe the energy transfer process relative to both ATP and ADP. - CORRECT
ANSWER ATP has the energy (phosphate group) to donate while ADP can accept
energy in the form of a phosphate group. Thus, ATP can be reduced (ATP →ADP + Pi)
while ADP can be built into ATP (ADP + Pi →ATP).
, BIOD171 Portage Microbiology Final
Exam with complete solutions
An organism that derives its energy (generates ATP) from photons of light is called a
_________ - CORRECT ANSWER Phototrophic microorganism.
An organism that derives its energy by removing electrons from elemental sulfur would
be classified as a __________? - CORRECT ANSWER Lithotroph
A reactive intermediate would be present in which phosphorylation process? -
CORRECT ANSWER The chemical compound losing the phosphate group is referred
to as the phosphorylated reactive intermediate.
What is the primary byproduct of the TCA cycle? - CORRECT ANSWER NADH and
FADH2
True or False. The reactants of the TCA cycle directly enter and fuel the electron
transport system. - CORRECT ANSWER False.
True or False. The β-oxidation pathway catabolizes the fatty acid chains of lipids. -
CORRECT ANSWER True
The process of carbon fixation begins with which of the following reactants: select all
that apply.
A. ATP B. Glyceraldehyde-3-phosphate C. CO2 D. NADPH E. H2O - CORRECT
ANSWER A, C, D, and E. Carbon fixation uses the ATP/NADPH produced during light
reactions to convert CO2 and H2O into useful sources of energy (carbohydrates).
What is one of the main functions of light reactions? - CORRECT ANSWER Similar to
the electron transport chain, one of its main functions is to generate a proton
concentration gradient to generate ATP.
True or False: Dark reactions can occur in the presence or absence of light. -
CORRECT ANSWER True.
How many turns (or repititions) of the Calvin Cycle are required to generate one
molecule of glucose? - CORRECT ANSWER 6
Complete the following equation by placing the appropriate numbers where indicated.
Match the following reactions to its corresponding enzyme:
1. A + B → A-B
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