McArdle Disease (glycogen storage disease 5) is caused by mutations in the phosphorylase enzyme in muscle. The symptoms are muscle cramps, pain, and fatigue during strenuous exercise. A patient is undergoing an ischemic exercise test and is fed 13C glucose prior to the test and then blood is drawn after the test. Explain how the following substrates would be labeled 1) alpha-ketoglutarate, 2) glucose 3) ribose, and 4) alanine.
In: Biology
McArdle Disease (glycogen storage disease 5) is caused by mutations in the phosphorylase enzyme in muscle. The symptoms are muscle cramps, pain, and fatigue during strenuous exercise. An ischemic exercise test is often used as part of the diagnostic process. This test measures lactate in the blood but is not always specific for McArdle. Explain why lactate might be a good diagnostic measurement for this disease and how its production is regulated in muscle in a normal person versus a McArdle patient
In: Biology
Please Describe AND diagram when and how six carbons in glucose are all transferred and released, and in what form (molecule), from glycolysis through the Krebs (TCA) cycle. What else happens each time carbons are released?
In: Biology
discussed that all living organisms have seven properties in common: (1) they grow and develop, (2) interact/respond to the environment, (3) reproduce, (4) process energy, (5) self-regulate, (6) are ordered/organized, and (7) evolve/adapt. Viruses, however, represent a challenge to this because they do not self regulate or process energy, which has led to many scientists not classifying viruses as living and say they are simply particles. Based on what you know from, should viruses be considered living? There is no right answer to this, just support your position.
In: Biology
McArdle Disease (glycogen storage disease 5) is caused by mutations in the phosphorylase enzyme in muscle. The symptoms are muscle cramps, pain, and fatigue during strenuous exercise. A) An ischemic exercise test is often used as part of the diagnostic process. This test measures lactate in the blood but is not always specific for McArdle. Explain why lactate might be a good diagnostic measurement for this disease and how its production is regulated in muscle in a normal person versus a McArdle patient. B) A patient is undergoing an ischemic exercise test and is fed 13C glucose prior to the test and then blood is drawn after the test. Explain how the following substrates would be labeled 1) alpha-ketoglutarate, 2) glucose 3) ribose, and 4) alanine. C) in patients with McArdle would you expect electron chain activity to increase, decrease, or remain the same in the muscle cell if the person is at rest? exercising?
In: Biology
In: Biology
The regulation of aspartate derived amino acids in Arabidopsis thaliana is depicted as an integrated network involving pathway end products that act as allosteric effectors on enzymes in intermediate steps.
Explain the downstream consequence of a reduction in the amount of S-Adenosyl methionine (SAM) on the overall flux of carbon through the various branches of this metabolic pathway.
The first step in converting aspartate into other amino acids is
the phosphorylation of aspartate. In A. thaliana, there are five
distinct aspartate kinase enzymes, two of which (AK I and AK II)
are bi-functional enzymes that also possess homoserine
dehydrogenase activity (HSDH I and
HSDH II, respectively). What is the net effect of combining AK and
HSDH activities into one enzyme? How does regulation of AK I/HSDH I
and AK II/HSDH II impact the flow of carbon skeletons toward the
possible end products in this pathway?
In: Biology
In: Biology
In: Biology
I need the results of the F1 and F2 generation using Punnet Square for:
1. Monohybrid cross between Parent gen. phenotypes scarlet and sepia drosophila
2. Dihybrid cross between Parent gen. phentotypes scarlet and yellow drosophila
with ratios.
In: Biology
TCA cycles, starting from two pyruvates to 6 CO2, generate 2 ATP, 8 NADH, and 2 FADH. How many ATPs are generated at each of the following processes? (use the data given here and the conversion factors 1 NADH=3 ATP, 1 FADH=2 ATP)
1) Substrate-level phosphorylation
2) Oxidative phosphorylation (aerobic respiration)
3) All ATP produced (both substrate level and oxidative phosphorylation)
| Answer Choices |
|---|
| A. 28 |
| B. 38 |
| C. 30 |
| D. 2 |
| E. 34 |
| F. none of above |
In: Biology
1. Vitamins A, D, E, and K are fat-soluble vitamins because their structures include a hydrocarbon chain.True or False
2. Which form of vitamin E is maintained in plasma and used by the body?
3. Multiple Choice
A. Beta-tocopherol
B. Alpha-tocopherol
C. Gamma-tocopherol
D. Delta-tocopherol
4. During commercial refinement of flour, most of the vitamin E that was naturally in the wheat is lost. True or False
5. Long-term vitamin E deficiency may result in _______. Select all that apply.
A.nerve damage
B. impaired immune system function
C. blindness
D. increased retinol synthesis
In: Biology
Describe the results you would get back if you performed a Chip-Seq experiment for an E. coli strain containing plasmid RK2, to investigate where DnaA-ATP binding occurs throughout the genome. Will you find sequences from multiple regions of the genome?
In: Biology
What are the three types of FDA meetings? How are these meetings arranged?
In: Biology
Global CO2 concentration is rising rapidly. Which type of plants are more likely to benefit from the increased CO2 concentration?
C3 plants benefit most.
Reason why?
In: Biology