Final Exam Review - Gen Biology 1010C Valencia Exams 1 –
4 Questions With Complete Solutions
_________ is a regulatory mechanism in which the end product
of a metabolic pathway inhibits an enzyme that catalyzes an
early step in the pathway. Correct Answers feedback inhibition
A carbon atom has 6 electrons however, its valency is 4. This is
because the carbon atom ___________. Correct Answers has
only 2 electrons in its first shell and 4 in the second shell
A carbon atom is most likely to form what kind of bond(s) with
other atoms? Correct Answers covalent
A cross between individuals eterozygous for a single character
Correct Answers monohybrid cross
A glass of grapefruit juice, at pH3, contains ___________ H+ as
a glass of tomato juice, at pH4. Correct Answers ten times as
much
A heritable unit that determines a character Correct Answers
gene
A human cell containing 22 autosomes and a Y chromosome is
Correct Answers a sperm cell
A man with hemophilia (a recessive, sex-linked condition) has a
daughter of normal phenotype, but is a carrier. She marries a
man who is normal for the trait. What is the probability that a
,daughter of this mating will be a hemophiliac? Correct Answers
25%
a pH of 8 is considered ______________. Correct Answers
basic
A protein that crosses the entire phospholipid bilayer is best
categorized as a(n): Correct Answers integral protein
A single glucose molecule can drive the Citric Acid cycle
Correct Answers two turns
About 25 of the 92 natural elements are known to be essential to
life. Which four of these 25 elements make up approximately
96% of living matter? Correct Answers carbon, hydrogen,
oxygen, nitrogen
All of the reactions of glucose oxidation that follow glycolysis
and involve the transfer of electrons to their final acceptor, take
place in eukaryotic cells in the ______________. Correct
Answers mitochondria
An animal cell lacking carbohydrates on the external surface of
its plasma membrane would likely be impaired in which
function? Correct Answers cell-cell recognition
An organism's appearance or observable traits Correct Answers
phenotype
analternative version of a gene Correct Answers allele
, As energy is being converted through the many forms, a portion
of it is continuously lost as Correct Answers heat
Asbestos is a material that was once used extensively in
construction. One risk from working in a building that contains
asbestos is the development of asbestosis caused by the
inhalation of asbestos fibers. Cells will take up asbestos by
phagocytosis but are not able to degrade it. As a result, asbestos
fibers accumulate in __________________. Correct Answers
lysosomes
At a conference, the speaker's grand finale was sauteing
mealworms (insects) in butter and serving them to the audience.
They were crunchy because their exoskeletons contain the
polysaccharide _______________. Correct Answers chitin
At which level of protein structure are interactions between the
side chains (R groups) most important? Correct Answers
tertiary
At which phase are centrioles beginning to move apart in animal
cells? Correct Answers prophase
Atoms have no elecdtric charge because they have
_______________. Correct Answers an equal number of
protons and electrons
Besides ATP, the Citric Acid cycle produces Correct Answers
both FADH2 and NADH
4 Questions With Complete Solutions
_________ is a regulatory mechanism in which the end product
of a metabolic pathway inhibits an enzyme that catalyzes an
early step in the pathway. Correct Answers feedback inhibition
A carbon atom has 6 electrons however, its valency is 4. This is
because the carbon atom ___________. Correct Answers has
only 2 electrons in its first shell and 4 in the second shell
A carbon atom is most likely to form what kind of bond(s) with
other atoms? Correct Answers covalent
A cross between individuals eterozygous for a single character
Correct Answers monohybrid cross
A glass of grapefruit juice, at pH3, contains ___________ H+ as
a glass of tomato juice, at pH4. Correct Answers ten times as
much
A heritable unit that determines a character Correct Answers
gene
A human cell containing 22 autosomes and a Y chromosome is
Correct Answers a sperm cell
A man with hemophilia (a recessive, sex-linked condition) has a
daughter of normal phenotype, but is a carrier. She marries a
man who is normal for the trait. What is the probability that a
,daughter of this mating will be a hemophiliac? Correct Answers
25%
a pH of 8 is considered ______________. Correct Answers
basic
A protein that crosses the entire phospholipid bilayer is best
categorized as a(n): Correct Answers integral protein
A single glucose molecule can drive the Citric Acid cycle
Correct Answers two turns
About 25 of the 92 natural elements are known to be essential to
life. Which four of these 25 elements make up approximately
96% of living matter? Correct Answers carbon, hydrogen,
oxygen, nitrogen
All of the reactions of glucose oxidation that follow glycolysis
and involve the transfer of electrons to their final acceptor, take
place in eukaryotic cells in the ______________. Correct
Answers mitochondria
An animal cell lacking carbohydrates on the external surface of
its plasma membrane would likely be impaired in which
function? Correct Answers cell-cell recognition
An organism's appearance or observable traits Correct Answers
phenotype
analternative version of a gene Correct Answers allele
, As energy is being converted through the many forms, a portion
of it is continuously lost as Correct Answers heat
Asbestos is a material that was once used extensively in
construction. One risk from working in a building that contains
asbestos is the development of asbestosis caused by the
inhalation of asbestos fibers. Cells will take up asbestos by
phagocytosis but are not able to degrade it. As a result, asbestos
fibers accumulate in __________________. Correct Answers
lysosomes
At a conference, the speaker's grand finale was sauteing
mealworms (insects) in butter and serving them to the audience.
They were crunchy because their exoskeletons contain the
polysaccharide _______________. Correct Answers chitin
At which level of protein structure are interactions between the
side chains (R groups) most important? Correct Answers
tertiary
At which phase are centrioles beginning to move apart in animal
cells? Correct Answers prophase
Atoms have no elecdtric charge because they have
_______________. Correct Answers an equal number of
protons and electrons
Besides ATP, the Citric Acid cycle produces Correct Answers
both FADH2 and NADH
