Question is ⇒ ATP is from which general category of molecules?, Options are ⇒ (A) Polysaccharides, (B) Proteins, (C) Nucleotides, (D) Amino acids, (E) , Leave your comments or Download question paper.

Question is ⇒ ATP is from which general category of molecules?, Options are ⇒ (A) Polysaccharides, (B) Proteins, (C) Nucleotides, (D) Amino acids, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	ATP is from which general category of molecules?
A.	Polysaccharides [Wrong Answer]
B.	Proteins [Wrong Answer]
C.	Nucleotides [Correct Answer]
D.	Amino acids [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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⇒ The released energy obtained by oxidation of glucose is stored as
a concentration gradient across a membrane
ADP
ATP
NAD⁺

⇒ During catabolism, only about 40% of the energy available from oxidizing glucose is used to synthesize ATP. Remaining 60%
is lost as heat
is used to reduce NADP
remains in the products of metabolism
is stored as fat.

⇒ The glycolytic pathway (glucose → 2 pyruvate) is found
in all living organisms
primarily in animals excluding particles
only in eukaryotes
only in yeast

⇒ Which of the following regulates glycolysis steps?
Phosphofructokinase
Hexose kinase
Pyruvate kinase
All of these

⇒ In the glycogen synthase reaction, the precursor to glycogen is
glucose-6-P
UTP-glucose
UDP-glucose
glucose-1-P

⇒ In glycolysis, ATP is formed by the transfer of a high-energy phosphate from 1,3-bisphosphoglycerate to ADR No such high-energy phosphate donor has ever been isolated in mitochondria because
the techniques for isolating the phosphate donor are not refined enough
no such phosphate donor exists
the high-energy phosphate donor is very short-lived and difficult to isolate
None of the above

⇒ A kinase is an enzyme that
removes phosphate groups of substrates
uses ATP to add a phosphate group to the substrate
uses NADH to change the oxidation state of the substrate
removes water from a double bond

⇒ During glycolysis, the major energy generating step involves
pyruvate kinase
phosphoglycerate kinase
glyceraldehyde-3 -dehydrogenase
Phosphofructokinase

⇒ When concentration of the reactants is higher than the equilibrium concentration then
the gibbs free energy will be positive
the gibbs free energy will be negative
more products will be formed
both (b) and (c)

⇒ Glycolytic pathway regulation involves
allosteric stimulation by ADP
allosteric inhibition by ATP
feedback, or product, inhibition by ATP
all of the above

⇒ Glycogen has
α-1,4 linkage
α-1,6 linkages
α-1,4 and α-1,6 linkages
α-1,4 and β-1,6 linkage

⇒ Why does the glycolytic pathway continue in the direction of glucose catabolism?
There are essentially three irreversible reactions that act as the driving force for the pathway
High levels of ATP keep the pathway going in a forward direction
The enzymes of glycolysis only function in one direction
Glycolysis occurs in either direction

⇒ Fructose-2,6-bisphosphate
activates fructose-1,6-bisphosphatase
activates phosphofructokinase
inhibits fructose-1,6-bisphosphatase
both (b) and (c)

⇒ Which of the following is not true of glycolysis?
ADP is phosphorylated to ATP via substrate level phosphorylation
The pathway does not require oxygen
The pathway oxidizes two moles of NADH to NAD⁺ for each mole of glucose that enters
The pathway requires two moles of ATP to get started catabo-lizing each mole of glucose

⇒ Glucose from the breakdown of glycogen is obtained in
the liver by phosphorolysis
the muscles by phosphorolysis
the muscles by hydrolysis
both (a) and (b)

⇒ Which of the following could act as an uncoupler of electron transport and ATP synthesis?
The Fo base-piece of ATP synthase (without the Fl subunit)
Dinitrophenol
neither (a) nor (b)
Both (a) and (b)

⇒ The enzymes of glycolysis in a eukaryotic cell are located in the
intermembrane space
plasma membrane
cytosol
mitochondrial matrix

⇒ The active form of glycogen phosphorylase is phosphorylated, while the dephosphorylation of which active form occurs?
Glycogen synthase
Glycogen semisynthase
Glycogen hydrolase
Glycogen dehydrogenase

⇒ Which of the following is not a mechanism for altering the flux of metabolites through the rate-determining step of a pathway?
Allosteric control of the enzyme activity
Diffusional coupling between adjacent active sites
Genetic control of the enzyme concentration
Covalent modification of the enzyme

⇒ Phosphofructokinase, the major flux-controlling enzyme of glycolysis is allosterically inhibited and activated respectively by
ATP and PEP
AMP and Pi
ATP and ADP
Citrate and ATP

⇒ The amount of energy received from one ATP is
76 kcal
7.3 kcal
760 kcal
1000 kcal

⇒ ATP is from which general category of molecules?
Polysaccharides
Proteins
Nucleotides
Amino acids

⇒ For every one molecule of sugar glucose which is oxidized __________ molecule of pyruvic acid are produced.
1
2
3
4