BioChem C785 - WGU - Module 4 - all questions Answered-The polysaccharide cellulose is composed of sugar monomers linked through beta linkages, with their CH2OH groups in opposite direction relative to the neighboring monomer. - True
Nutrient that can not be broken down to a substance that can p...
BioChem C785 - WGU - Module 4 - all questions
Answered
The polysaccharide cellulose is composed of sugar monomers linked through beta
linkages, with their CH2OH groups in opposite direction relative to the neighboring
monomer. - True
Nutrient that can not be broken down to a substance that can participate in the
production of ATP via aerobic cellular metabolism - Vitamin E
Glycolysis produces 2 ATP molecules, through what process are these ATP molecules
made? - Substrate level phosphorylation
What product of beta oxidation is able to enter the citric acid cycle? - AcetylCoA
What process is shared between anaerobic and aerobic metabolism? - glycolysis
A defect occurs that prevents pyruvate from converting to lactate under anaerobic
conditions - what is a possible consequence? - glycolysis stops because NAD+ levels
are too low
What differentiates aerobic from anaerobic cellular metabolism? - utilization of 02 as an
electron acceptor
What takes place in the mitochondria of a cell? - production of FAHD2
production of CO2 in the citric acid cycle
creation of a proton gradient
What does not take place in the mitochondria of a cell? - conversion of pyruvate to
lactic acid
Under aerobic conditions in a human, which molecule is formed in the cytosol by
fermentation? - lactate
A woman is about to begin her ascent of Mount Everest and is preparing for Day 1 of
the climb. Approximately 6 hours before the hike begins, she and her climbing team eat
a meal containing 80% complex carbohydrates. What is the physiological benefit of this
approach? - improving glycogen stores in the liver and muscle
Which process is stimulated when glucagon is released into the bloodstream? -
triglyceride synthesis
, Which chemical represents a monosaccharide? - C6H1206
A patient with advanced cancer has not been able to eat a full meal for the past 3
months, and his intake has gradually diminished over the last month such that his entire
intake in the prior 3 days consists solely of water. What is most likely? - He is likely to
have lost adipose tissue and muscle mass
Which process is stimulated when insulin is released into the bloodstream? -
glycogenesis
What is the largest source of energy storage in the normal human body? - triglycerides
in adipose
What drives glucose from the bloodstream into the cells? - insulin
What chemicals can be produced in dangerous excess in a patient taking metformin
because of its effects of decreasing the liver's participation in the Cori Cycle? - lactic
acid
A 2-year old boy found to have an autosomal recessive glycogen storage disease that
prevents him from being able to fully metabolize glucose. On examination, he has an
enlarged liver and bulky appearing muscles. Biopsy of both the liver and the muscles
shoes markedly increased amounts of glycogen compared to normal - What is true? -
Since glucose can be partially but not fully metabolized, there is an increased
concentration of the intermediate compounds and this causes a shift in enzymatic
reactions, favoring the production of glycogen
Sucrose is a disaccharide consisting of one molecule of glucose bound to one molecule
of fructose. When you put sucrose in your tea, how is that sucrose utilized by your body
for making energy? (ATP) - sucrose is broken down into its constituent
monosaccharides for absorption, these can then be metabolized via glycolysis and the
citric acid cycle
Which of the following directly provides the energy necessary for the conversation of
ADP + P to ATP by ATP synthase? - proton moving down a concentration gradient
from the intermembrane space to the mitochondrial matrix
If a patient is healthy and has a normal oxygen concentration in her blood,
approximately how many ATP are produced for every molecule of glucose that is
aerobically metabolized? - 30.
2 ATP are formed in glycolysis via substrate level phosphorylation.
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