BIOCHEM C785 ACTUAL EXAM 100%
CORRECT QUESTIONS WITH SOLUTIONS
GRADED A+
◍ what product of beta oxidation is able to enter the citric acid cycle.
Answer: acetyl-coA is produced by beta oxidation and enters the citric
acid cycle
◍ what process is shared between anaerobic and aerobic metabolism.
Answer: glycolysis will occur whether or not there is oxygen;
however whatever happens to pyruvate will be different
◍ which of the following processes does NOT take place in the
mitochondria of the cell. Answer: conversion of pyruvate to lactic
acid, which occurs in the cytosol
◍ glycogenolysis is the process of. Answer: splitting glycogen into
glucose subunits
◍ glucagon stimulates which processes. Answer: gluconeogenesis
and glycogenolysis
◍ insulin stimulates which processes. Answer: glycogenesis
◍ what is the largest source of energy storage in the normal human
body. Answer: triglycerides in the fat
,◍ how many ATP are produced for every molecules of 1 glucose that
is aerobically metabolized. Answer: 30 ATP
◍ 2 from glycolysis. Answer:
◍ 2 from CAC. Answer:
◍ 26 from ETC. Answer:
◍ how is energy stored in the ATP molecule. Answer: in the bonds
between the phosphate groups
◍ 2, 3 BPG stabilizes what state. Answer: 2-3, BPG stabilizes the T
state of Hgb and facilitates the release of oxygen
◍ carbon monoxide. Answer: stabilizes the R state
◍ binds to Hgb at a higher affinity than oxygen. Answer:
◍ increases hub's affinity FOR o2. Answer:
◍ which directly bind to Hgb. Answer: O
,◍ CO. Answer:
◍ H+. Answer:
◍ 2,3 BPG. Answer:
◍ which does NOT directly bind to Hgb. Answer: CO2
◍ which can bind directly to the IRON atom in hemeglobin. Answer:
oxygen and CO
◍ what molecule links the citric acid cycle to the electron transport
chain. Answer: NADH
◍ which feature of a protein made of a single polypeptide chain is
most directly responsible for its function. Answer: three-dimensional
structure
◍ Assuming 100% efficiency, how many DNA copies are created by
4 PCR cycles?. Answer: 16
◍ What is the function of DNA polymerase in the PCR process?.
Answer: IT recognizes the primers and uses available dNTPS to
replicate the template DNA sequence.
, ◍ Studies show that increased expression of two genes (SIRT1 and
SIRT2) is associated with chronic exposure to cocaine and contributes
to drug addiction. What difference in the regions of SIRT1 and SIRT2
genes in people addicted to cocaine increases their expression?.
Answer: The nucleosomes become more widely spaced.
◍ What occurs during the process of alternative splicing of mRNA?.
Answer: Alternate combos of exons within the same gene are linked
together.
◍ Which type of mammalian DNA damage repair requires the
presence of the chromosome that is homologous to the damaged
chromosome?. Answer: recombination
◍ Xeroderma pigmentosum is a recessive genetic disease that occurs
when one or more of the genes that perform nucleotide excision repair
are nonfunctional. Why do XP patients have a higher rate of skin
cancer than others?. Answer: The mutation rate of all other genes is
higher due to fail to repair.
◍ What force is most influential in determining the tertiary structure
of a protein?. Answer: Hydrophobic effect
◍ Given the following amino acid structure, what is the strongest
intermolecular force it would participate in to stabilize a protein
structure?. Answer: Hydrogen Bond
CORRECT QUESTIONS WITH SOLUTIONS
GRADED A+
◍ what product of beta oxidation is able to enter the citric acid cycle.
Answer: acetyl-coA is produced by beta oxidation and enters the citric
acid cycle
◍ what process is shared between anaerobic and aerobic metabolism.
Answer: glycolysis will occur whether or not there is oxygen;
however whatever happens to pyruvate will be different
◍ which of the following processes does NOT take place in the
mitochondria of the cell. Answer: conversion of pyruvate to lactic
acid, which occurs in the cytosol
◍ glycogenolysis is the process of. Answer: splitting glycogen into
glucose subunits
◍ glucagon stimulates which processes. Answer: gluconeogenesis
and glycogenolysis
◍ insulin stimulates which processes. Answer: glycogenesis
◍ what is the largest source of energy storage in the normal human
body. Answer: triglycerides in the fat
,◍ how many ATP are produced for every molecules of 1 glucose that
is aerobically metabolized. Answer: 30 ATP
◍ 2 from glycolysis. Answer:
◍ 2 from CAC. Answer:
◍ 26 from ETC. Answer:
◍ how is energy stored in the ATP molecule. Answer: in the bonds
between the phosphate groups
◍ 2, 3 BPG stabilizes what state. Answer: 2-3, BPG stabilizes the T
state of Hgb and facilitates the release of oxygen
◍ carbon monoxide. Answer: stabilizes the R state
◍ binds to Hgb at a higher affinity than oxygen. Answer:
◍ increases hub's affinity FOR o2. Answer:
◍ which directly bind to Hgb. Answer: O
,◍ CO. Answer:
◍ H+. Answer:
◍ 2,3 BPG. Answer:
◍ which does NOT directly bind to Hgb. Answer: CO2
◍ which can bind directly to the IRON atom in hemeglobin. Answer:
oxygen and CO
◍ what molecule links the citric acid cycle to the electron transport
chain. Answer: NADH
◍ which feature of a protein made of a single polypeptide chain is
most directly responsible for its function. Answer: three-dimensional
structure
◍ Assuming 100% efficiency, how many DNA copies are created by
4 PCR cycles?. Answer: 16
◍ What is the function of DNA polymerase in the PCR process?.
Answer: IT recognizes the primers and uses available dNTPS to
replicate the template DNA sequence.
, ◍ Studies show that increased expression of two genes (SIRT1 and
SIRT2) is associated with chronic exposure to cocaine and contributes
to drug addiction. What difference in the regions of SIRT1 and SIRT2
genes in people addicted to cocaine increases their expression?.
Answer: The nucleosomes become more widely spaced.
◍ What occurs during the process of alternative splicing of mRNA?.
Answer: Alternate combos of exons within the same gene are linked
together.
◍ Which type of mammalian DNA damage repair requires the
presence of the chromosome that is homologous to the damaged
chromosome?. Answer: recombination
◍ Xeroderma pigmentosum is a recessive genetic disease that occurs
when one or more of the genes that perform nucleotide excision repair
are nonfunctional. Why do XP patients have a higher rate of skin
cancer than others?. Answer: The mutation rate of all other genes is
higher due to fail to repair.
◍ What force is most influential in determining the tertiary structure
of a protein?. Answer: Hydrophobic effect
◍ Given the following amino acid structure, what is the strongest
intermolecular force it would participate in to stabilize a protein
structure?. Answer: Hydrogen Bond
