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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
anti-codons, codons
D
exons, introns
2) translation occurs in
A
mitochondria
B
the rough endoplasmic reticulum
C
the cytoplasm
D
the golgi
3) each 3 base codon in an mRNA molecule codes for a specific
A
exon
B
lipopolysaccharide
C
intron
D
amino acid
4) _____ RNA brings the amino acids to the ribosome during translation
A
nuclear
B
messenger
C
transfer
D
ribosomal
5) which of the following is NOT true of a catalyst?
A
it changes the reaction equilibrium to favor the product
B
it lowers the activation energy
C
it is not consumed in the reaction
D
it increases the reaction rate
6) the substrate binds to the ____ of the enzyme
A
reactive site
B
active site
C
allosteric 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
inactive, zymogen
B
reactive, cataligen
C
active, pepsinogen
D
inorganic, protozyme
9) negative feedback type regulation of a metabolic pathway by its final product is called
A
antangonistic inhibition
B
RNA interference
C
end-product inhibition
D
allosteric inhibition
10) metal ions commonly seen in vitamins are often
A
components of electolyte balance
B
polypeptide subunits
C
enzyme cofactors
D
antagonistic effectors
11) the flow of energy in living systems is
A
bioenergetics
B
entropy
C
thermodynamics
D
vitadynamics
12) a calorie is a measure of ____, specifically the amount of it required to raise 1 gram of ___ by 1 _____
A
heat, water, degree centigrade
B
biodynamic potential, cells, milivolt/minute
C
energy, a substance, degree kelvin
D
how good food tastes, flavor, umami unit
13) the capital 'C' dietary Calorie is actually _____ science lab calories
A
1/1000
B
100
C
10
D
1000
14) the energy used by cells is in the form of
A
chemiosmotic gradients
B
thermal gradients
C
chemcial bonds
D
ionic potentials
15) the universal 'energy carrier' of the cell is, a ____
A
ATP, nucleic acid
B
ATP, amino acid
C
triglyceride, lipid
D
Glucose, carbohydrate
16) in an oxidation reaction, the thing being oxidized
A
is simultaneously reduced
B
has the lower energy level
C
loses electrons
D
gains electrons
17) in living things, ______ reactions break down molecules, while ______ reactions build more complex molecules
A
chemical, biological
B
aerobic, anaerobic
C
catabolic, anabolic
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 liver
B
the heart
C
the brain
D
resting skeletal muscle
20) glycogenolysis, the ____ of _____, is the opposite of ______
A
bane, physiology students, an easy word like 'pancreas'
B
formation, glycogen, glyconeolysis
C
breakdown, glycogen; glycogenesis
D
addition, fatty acids to glycerol, delipification
*select an answer for all questions
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