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Human Physiology Unit 1 Exam Review C
Test Description: BIOL G225
Instructions: Answer all questions to get your test result.
1) pre-mRNA is processed to form 'mature' mRNA by cutting out the non-coding ____ and splicing the ____ together
A
introns, exons
B
codons, anti-codons
C
exons, introns
D
anti-codons, codons
2) translation occurs in
A
mitochondria
B
the golgi
C
the rough endoplasmic reticulum
D
the cytoplasm
3) each 3 base codon in an mRNA molecule codes for a specific
A
amino acid
B
lipopolysaccharide
C
intron
D
exon
4) _____ RNA brings the amino acids to the ribosome during translation
A
messenger
B
nuclear
C
ribosomal
D
transfer
5) which of the following is NOT true of a catalyst?
A
it is not consumed in the reaction
B
it changes the reaction equilibrium to favor the product
C
it increases the reaction rate
D
it lowers the activation energy
6) the substrate binds to the ____ of the enzyme
A
allosteric site
B
reactive site
C
active site
D
conjugate site
7) which of the following are NOT true about enzymes?
A
most enzymes are not sensitive to changes in pH
B
all of the rest are not true
C
as temperature increases from 25C to 37C, enzyme activity decreases
D
very few enzymes require cofactors
8) digestive enzymes are typically produced in a(n) ______ form, known as a ____
A
reactive, cataligen
B
inactive, zymogen
C
inorganic, protozyme
D
active, pepsinogen
9) negative feedback type regulation of a metabolic pathway by its final product is called
A
end-product inhibition
B
RNA interference
C
antangonistic inhibition
D
allosteric inhibition
10) metal ions commonly seen in vitamins are often
A
antagonistic effectors
B
components of electolyte balance
C
enzyme cofactors
D
polypeptide subunits
11) the flow of energy in living systems is
A
bioenergetics
B
entropy
C
vitadynamics
D
thermodynamics
12) a calorie is a measure of ____, specifically the amount of it required to raise 1 gram of ___ by 1 _____
A
biodynamic potential, cells, milivolt/minute
B
how good food tastes, flavor, umami unit
C
energy, a substance, degree kelvin
D
heat, water, degree centigrade
13) the capital 'C' dietary Calorie is actually _____ science lab calories
A
1/1000
B
10
C
1000
D
100
14) the energy used by cells is in the form of
A
chemcial bonds
B
chemiosmotic gradients
C
thermal gradients
D
ionic potentials
15) the universal 'energy carrier' of the cell is, a ____
A
ATP, amino acid
B
triglyceride, lipid
C
Glucose, carbohydrate
D
ATP, nucleic acid
16) in an oxidation reaction, the thing being oxidized
A
gains electrons
B
has the lower energy level
C
loses electrons
D
is simultaneously reduced
17) in living things, ______ reactions break down molecules, while ______ reactions build more complex molecules
A
catabolic, anabolic
B
chemical, biological
C
aerobic, anaerobic
D
endergonic, exergonic
18) organic reactions that require an input of energy are said to be ____, while those that release energy are _____
A
enthalpic, entropic
B
endergonic, exergonic
C
aerobic, anaerobic
D
catabolic, anabolic
19) fats are not an energy source for
A
the brain
B
the liver
C
resting skeletal muscle
D
the heart
20) glycogenolysis, the ____ of _____, is the opposite of ______
A
breakdown, glycogen; glycogenesis
B
addition, fatty acids to glycerol, delipification
C
formation, glycogen, glyconeolysis
D
bane, physiology students, an easy word like 'pancreas'
*select an answer for all questions
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