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BIO 156 EXAM 2 QUESTIONS AND CORRECT ANSWERS WITH COMPLETE SOLUTIONS | UPDATED 2025
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BIO 156 EXAM 2 QUESTIONS AND CORRECT ANSWERS WITH COMPLETE SOLUTIONS | UPDATED 2025
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BIO 156 EXAM 2 QUESTIONS ANDCORRECT ANSWERS WITH COMPLETE
SOLUTIONS | UPDATED 2025
NAME each of the following reaction types:
HCl + NaOH -> NaCl + H20
Glucose + galactose -> lactose + H20
H+ + HCO3- <-> H2CO3
Amylose + H20 -> many glucoses - ANSWER HCl + NaOH -> NaCl + H20
(EXCHANGE REACTION)
-Acid-base reactions
Glucose + galactose -> lactose + H20
(ANABOLIC REACTION)
-Dehydration synthesis reaction
H+ + HCO3- <-> H2CO3 (REVERSIBLE REACTION)
-ATP discharge/recharge reaction
Amylose + H20 -> many glucoses (CATABOLIC REACTION)
,-Hydrolysis reaction
List one example of a HUMAN reaction of the
decomposition/breakdown/catabolic type: - ANSWER Amylose --> many
glucoses
List one example of a HUMAN synthetic/combination/anabolic reaction type: -
ANSWER many glucoses -> Amylose
How does the CENTRAL DOGMA of MODERN BIOLOGY describe the relationship
between proteins and DNA? - ANSWER -Explains that all the RECIPES for
proteins are stored as Information (ATCG) in the DNA molecule.
A GENE is a segment of DNA that contains the nucleotide
code for the primary structure of a protein.
In one or two sentences, explain the CENTRAL DOGMA OF MODERN BIOLOGY: -
ANSWER -Explains that...DNA is a molecule that contains protein recipes
(genes) but DNA is "stuck" in the nucleus. RNA molecules carry a copy of the
protein recipe out into the cytoplasm and coordinate the production of proteins in
the cytoplasm
-DNA is used to form RNA and RNA is used to form PROTEINS.
If the ocular magnifies 15X & the objective lens magnifies 20X, what is the total
magnification of the lens system? - ANSWER 300x
(multiply the two numbers)
, What is the total magnification of YOUR microscope at LOW power? - ANSWER
100x
SCAN:
-Magnification: 40x
-Field view of diameter: 5000um
LOW:
-Magnification: 100x
-Field view of diameter: 2000um
HIGH:
-Magnification: 400x
-Field view of diameter: 500um
ULTRA HIGH:
-Magnification: 1000x
-Field view of diameter: 200um - ANSWER when calculating how many LONG a
cell is:
divide FOVD by # of cells
FVOD/# of cells = ...um
ex: 2000um/5 cells = 400um
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