Human Physiology Unit 1 Exam Review C Question Preview (ID: 36076)


BIOL G225. TEACHERS: click here for quick copy question ID numbers.

pre-mRNA is processed to form 'mature' mRNA by cutting out the non-coding ____ and splicing the ____ together
a) introns, exons
b) exons, introns
c) anti-codons, codons
d) codons, anti-codons

translation occurs in
a) the cytoplasm
b) the rough endoplasmic reticulum
c) the golgi
d) mitochondria

each 3 base codon in an mRNA molecule codes for a specific
a) amino acid
b) intron
c) exon
d) lipopolysaccharide

_____ RNA brings the amino acids to the ribosome during translation
a) transfer
b) messenger
c) ribosomal
d) nuclear

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

the substrate binds to the ____ of the enzyme
a) active site
b) allosteric site
c) reactive site
d) conjugate site

which of the following are NOT true about enzymes?
a) all of the rest are not true
b) as temperature increases from 25C to 37C, enzyme activity decreases
c) very few enzymes require cofactors
d) most enzymes are not sensitive to changes in pH

digestive enzymes are typically produced in a(n) ______ form, known as a ____
a) inactive, zymogen
b) active, pepsinogen
c) reactive, cataligen
d) inorganic, protozyme

negative feedback type regulation of a metabolic pathway by its final product is called
a) end-product inhibition
b) allosteric inhibition
c) RNA interference
d) antangonistic inhibition

metal ions commonly seen in vitamins are often
a) enzyme cofactors
b) polypeptide subunits
c) components of electolyte balance
d) antagonistic effectors

the flow of energy in living systems is
a) bioenergetics
b) vitadynamics
c) entropy
d) thermodynamics

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) energy, a substance, degree kelvin
c) biodynamic potential, cells, milivolt/minute
d) how good food tastes, flavor, umami unit

the capital 'C' dietary Calorie is actually _____ science lab calories
a) 1000
b) 100
c) 10
d) 1/1000

the energy used by cells is in the form of
a) chemcial bonds
b) thermal gradients
c) chemiosmotic gradients
d) ionic potentials

the universal 'energy carrier' of the cell is, a ____
a) ATP, nucleic acid
b) Glucose, carbohydrate
c) triglyceride, lipid
d) ATP, amino acid

in an oxidation reaction, the thing being oxidized
a) loses electrons
b) gains electrons
c) is simultaneously reduced
d) has the lower energy level

in living things, ______ reactions break down molecules, while ______ reactions build more complex molecules
a) catabolic, anabolic
b) aerobic, anaerobic
c) endergonic, exergonic
d) chemical, biological

organic reactions that require an input of energy are said to be ____, while those that release energy are _____
a) endergonic, exergonic
b) catabolic, anabolic
c) aerobic, anaerobic
d) enthalpic, entropic

fats are not an energy source for
a) the brain
b) resting skeletal muscle
c) the liver
d) the heart

glycogenolysis, the ____ of _____, is the opposite of ______
a) breakdown, glycogen; glycogenesis
b) formation, glycogen, glyconeolysis
c) addition, fatty acids to glycerol, delipification
d) bane, physiology students, an easy word like 'pancreas'

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