Hello, Wanted to check if my answers were correct. Translated this from hebrew s

Question

Hello, Wanted to check if my answers were correct. Translated this from hebrew so hope all is dlear.Thanks. 8. How does ATP regulate the activity of phosphofructokinase? a. The bond of ATP to the alosteric site of the enzyme lowers its affinity to fructose 6 phosphate. b. The bond of ATP to the alosteric site of the enzyme lowers its affinity to 1. alpha configuration in sugar indicatesthat: c. The bond of ATP to the alosteric site of the enzyme increases its affinity to the hedroxil group on carbon 1 is in the opposite dirrection of the hedroxil on carbon 6. the hedroxilgroup on carbon 1 is in the same dirrection of the hedroxilon carbon 6. a. d. The bond of ATP to the alosteric site of the enzyme lowers the Km. b. 10. What Is the correct sentence? The glucolysis in eukariotstakes place in cytoplasm the and crebs cycle takes place in the mitochondria. The glucolysis in eukariots takes place in the mitochondria and crebs cycle takes place in the cytoplasm. Both take place in the mitochondria. All sentances are wrong. c. the hedroxilgroup on carbon 1 is in the same dirrection of the hedroxilon a. d. the hedroxilgroup on carbon 1 is in the opposite dirrection of the hedroxilon b. 2. Whats the diffrerance between amylose andamylopectin? c. Amylose is the non branched form of the polimer and amylopectin is the d. a. branched form. 11. Which describesbest the state of pyruvate dehydrogenase complex while on strenuous phisical activity? a. Increase in levels of calcium inside cells during muscle contarction activates the b. Amylose is the branchedform of the polimer and amylopectin is the non branched form coplex Increasein levels of calcium inside cells during muscde contarction activates phosphatase that inhibits the complex Levels of ADP increase due to muscle contraction activate kinase and inhibit the Amylose is a homo poly sugar and amylopectin is a hetero poly sugar d. c. b. Amylose is a hetero poly sugar and amylopectin is a homo poly sugar What is the role of Aggrecan? a. Is a type of Proteoglycan that serves as a shock absorber b. Works as storage c. Is a type of proteoglycan that serves aslactin. d. Is a type of proteoglycan that serves as an anti thrombonicagent. In a research where the connection between alcohol metabolismand addiction was studied, researchers found a group of people with a polymorphisem in the 3. C. X. d. All answers are correct. 12. What is the active site of CoA that binds to acetyl to form acetyl CoA? a. Thiol b. Phosphate c. Keton d. 4. nce of ADHenzyme that had lower Km then normal. How is the change in the sequence expected to affect the chance to develop addiction. a. People with this polymorphism will have a lower chance to develop addiction. b. People with this polymorphism will have a higher chance to develop 13. Whats the connection between harming citric acid cycle enzymesto the function of prolyl hydroxilase 2? a. harming crebs cycle enzymes causes the succinate and fumerate to leave the mitochondria and the inhibition of prolyl hydroxilase 2. harming crebs cycle enzymes causes the succinate and fumerate to leave the mitochondria and the activation of prolyl hydroxilase 2. The inhinition of prolyl hydroxilase 2 causes an inhibition on HIF1. Nonof the answers is correct. b. The sequence change isn'tlikely to affect the chance of developing addiction. d. c. Ethanol will break down to acethyl aldehide slowly, which in turn will make the hang overworsen and will increase the chance to develop addiction. What is the correct sentence regarding the proccess in which pyruvate turns into lactic acid? a. Pyruvate recives electrons from NADH and goes true a reduction. b. Pyruvate recives electrons from NADH and goes true an oxidation. C. Pyruvate gives electrons to NAD+ and turns into lactic acid. d. Pyruvate recives electrons from NAD+ and turns into lactic acid. c. 5. d. 14. What is the correct statement of the conection between PDH kinase and development of new medication for treating cancer a. a medication that inhibits PDH kinase will cause activation of PDH complex nd the increase of of aerobicrespiration in cancerous cells. a medication that inhibits PDH kinase will cause activation of PDH complex and the increase of of anaerobic respiration in cancerous cells. a medication that inhibits PDH kinase will cause inhibition of PDH complex and the increase of of aerobic respiration in cancerous cells. All answersare correct b. 6. The enzyme exokinase has a low Km forsix carbon sugars, the meaning of that is: c. That the reduction of sugar can occur also when glucose level in the blood are hi That the reduction of sugar can occur only whenglucose levels in the blood are low That the reduction of sugar can occur only whenglucose levels in the bloodare a. d. b. 15. What is the sentence that discribes correctly the regulation on HIF1? c. a. In normaxia HIF1 is inhibitedand there is an inhibition on anaerobic on. d. That the reduction of sugar can occur only when glucose level in the cell are In hipoxia HIF1 is inhibited and there is an inhibition on anaerobicrespiration. In cancerous cells HIF1 is inhibited and there is an inhibition on anaerobic respiration. b. c. 7. Which sentence is wrong about the regulated steps of glycolysis? d. In normaxia HIF1 is activated and there is an inhibition on anaerobic respiration. The enzymes that are highly and closely regulated are: triosphosphate- isomerase, phosphpoglycerate mutase and aldolase The enzymes that are highly and dlosely regulatedare:hexokinase phosphofructokinase and pyruvate kinase The stepsthat are most regulated have a negative delta G The regulatedenzymes are the ones that catalyse reactions that are unreversable a. b. c. d.

Explanation / Answer

1. Alpha configuration in sugar means - The hydroxil group of the carbon 1 is in the same direction of the hydroxil group of the carbon 2.

in beta configuration ,the hydroxil group on the first carbon will be in opposite direction as of the hydroxil group on the second carbon. So the answer is C.

2. The difference between amylose and amylopectin is that amylose is non branched(linear ) while amylopectin is branched.

3.Aggrecan is a peptidoglycan that are present in cartlage. they help in sock absorption.

5. When Pyruvate is converted to lactic acid, It recieves electrons from NADH , And gets converted into lactic acid.

In this reaction, pyruvate gets reduced and NADH gets oxidised.

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.