Choose the best answers for each missing word from the list below.____ regulated by ATP,Aspartate transcarbamoylase (ATCase) is (1)which is a (2)________________ regulator, and by CTP which binds to the (3)____subunit of ATCase and shifts the conformational equilibrium to the (4).T state. CTP regulation of ATCase is called (5)________1) allosterically, 2) positive, 3) regulatory, 4) inactive, 5) feedbackinhibition1) covalently 2) positive, 3) regulatory, 4) active, 5) feedback inhibition1) allosterically, 2) negative, 3) regulatory, 4) inactive, 5) feedforwardactivation1) allosterically, 2) negative, 3) catalytic, 4) active, 5) feedforwardinhibition1) irreversibly, 2) positive, 3) catalytic, 4) inactive, 5) feedback inhihition

Enzymes are proteins found in the cell, these are bio catalysts that speed up the reaction without…

Answered: Choose the best answers for each…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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The binding of insulin to its receptor on the surface of a target cell activates the receptor’s tyrosine kinase activity, which in turn causes several phosphorylation cascades that alter the activity of numerous enzymes as well as the expression of specific genes. Describe how one of these phosphorylation cascades stimulates glycogen synthesis.
Protein Phosphatase 1: What overall effect does PP1 have on the storage or breakdown of glycogen? (1 point) How does PPI regulate the activity of its targets? (1 point) Which enzymes are its targets? (2 points) What activates it [hormone (pathway activator) and enzyme (immediate activator)]? (2 points) Hormone: Enzyme:
If the brain needs glucose, then gluconeogenesis stops after reaction (9, 8, 10, 2) because (phosphoenolpyruvate, glucose, glucose-6-phosphaet, fructose-6-phosphate) can be exported from the hepatocyte using a transporter.
Complete the description of the pentose phosphate pathway by filling the correct term to each blank. The pentose phosphate pathway is a two‑stage pathway that generates ______ , which is a reductant in many biosynthetic reactions and takes part in detoxifying reactive oxygen species, and __________ , which is a nucleotide (DNA and RNA) precursor. The substrate for the pentose phosphate pathway is ___________
How many ATP are produced from a triglyceride containing three 14 carbon fatty acids? NOTE: Assume that glycerol is converted to Glyceraldehyde-3-Phosphate (step 6 of glycolysis).
Give typing answer with explanation and conclusion
Consider regulation of glycolysis vs gluconeogenesis in the liver. Which of the following are more likely to promote the activity of gluconeogenesis rather than glycolysis? (select all that apply) Group of answer choices An increase in the ATP/AMP ratio A decrease/lack of F-2,6-BP The cell is in a low energy state Insulin signaling Glucagon signaling An abundance of citric acid cycle intermediates (i.e. citrate) Intense exercise Inhibition of pyruvate carboxylase Fasting
in the synthesis of glycogen, the glycogen synthase uses UDP-glucose rather than glucose. Explain in detail way.
Can you please pick the right answer in each parentheses (a) to (e)? Coenzymes are nonprotein compounds that are required for the activity of certain enzymes. One critical coenzyme central to metabolism is NAD+. In fact it is one of 5 coenzymes required by (a)< "pyruvate dehyrogenase" vs "citrate synthase" > , the critical enzyme for producing Acetyl-CoA. NAD+ is synthesized from (b)< "niacin (vitamin B3)" vs "acetate" > as was discovered to be critical for health by two American scientists, (c)<"Joseph Goldberger and Conrad Elvehjem" vs "Linus Pauling and Eric Lander"> , in the early 20th century. Dietary lack of this critical molecule produces pellagra, characterized by the following symptoms: (d)<"skin inflammation, dementia, diarrhea" vs "chorea-like movement">. People with these problems were found in parts of the U.S. where diets lacked vegetables and consisted principally of corn. Interestingly, soaking the corn in (e)<"salt water" vs…
Fill in the blanks and answer the question: A. The enzyme ATCase (aspartate transcarbamoylase) uses _________________control to regulate its activity. The molecule ATP is an allosteric _____________ of ATCase and because it is a molecule different from the substrate of this enzyme it produces an _________________ effect in the enzyme’s activity. B. Is it appropriate to study the enzymatic activity of ATCase with the Michaelis Menten approximation? Justify your answer.
Which of the following would result in an increase in the amount of F-2,6-BP? (select all that apply) Group of answer choices high blood glucose activation of fructose bisphosphatase 2 increased phosphofructokinase 2 activity increased glucagon secretion increased phosphorylation of the bifunctional enzyme
An increase in the amount of stored lipids leads to changes in the expression of many hormones. One such hormone is tumor necrosis factor α (TNF-α). A change in expression of this hormone can lead to a change in the free fatty acid level, which, in turn, decreases insulin sensitivity. Place the steps of this process in order.

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