Pepsin and pancreatic digestive enzymes are regulated by: Allosteric regulation Zymogen activation Covalent modification Competitive inhibition
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Q: what pH values is pepsin likely to be denatured? Justify your answer.
A: Pepsin is an enzyme which breakdowns proteins into peptides and amino acids.
Q: Match the terms transamination and deamination to the following?
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Pepsin and pancreatic digestive enzymes are regulated by:
Allosteric regulation
Zymogen activation
Covalent modification
Competitive inhibition
Step by step
Solved in 3 steps
- Enzymes that digest dietary proteins in the stomach and intestine are synthesized as proenzymes or zymogens. Which of the following is the proenzyme form of a proteolytic enzyme of the digestive tract? elastase O carboxypeptidase chymotrypsinArrange the following statements regarding the processes of protein metabolism starting from Step 1 to Step 10 Acidic denaturation and hydrolysis of proteins Enters the Kreb Cycle Mechanical digestion to go to the small intestines Shuffling of amino group to generate glutamate Active transport takes place Removal of basic and acidic functional groups Conversion to individual amino acids Glutamate becomes alpha-ketoglutarate Conversion of pepsinogen to pepsin by HCl Conversion of proteins to simpler polypeptidesPancreatic lipase is necessary to break down fats in the body. It requires a protein, prolipase, to reach its peak enzymatic activity. Which of the following statements is MOST correct? Prolipase is a coenzyme. Prolipase is a prosthetic group. Prolipase is a vitamin. Pancreatic lipase is an apoenzyme.
- Select ALL of the following that pepsin, trypsin, and chymotrypsin share in common: V they all digest proteins into peptides they are all enzymes they are all located on the brush border O they are all secreted in an inactive form O they are all produced by the pancreas O they are all proteases they are all activated by HCI (hydrochloric acid) O they must all be activatedArrange the following statements regarding the processes of protein metabolism starting from Step 1 to Step 10. Conversion of pepsinogen to pepsin by HCI • Active transport takes place • Conversion to individual amino acids Glutamate becomes alpha-ketoglutarate Mechanical digestion to go to the small intestines • Shuffling of amino group to generate glutamate • Conversion of proteins to simpler polypeptides Removal of basic and acidic functional groups Enters the Kreb Cycle • Acidic denaturation and hydrolysis of proteinsArrange the following statements reagarding the process of protien metabolism starting from 1 to step 10. Conversion of pepsinogen to pepsin by HCl Enters the Kreb Cycle Removal of basic and acidic functional groups Conversion to individual amino acids Glutamate becomes alpha-ketoglutarate Active transport takes place Acidic denaturation and hydrolysis of proteins Mechanical digestion to go to the small intestines Conversion of proteins to simpler polypeptides Shuffling of amino group to generate glutamate
- Individuals who are lactose intolerant do not produce enough of the enzyme in the to properly digest lactose. O Lactase; spleen O Lactase; large intestine Galactose; stomach Lactase; small intestineWhich of the following is a correctly-paired opposite? 1) gluconeogensis and glycolysis 2) lipolysis and glycogenesis 3) glycogenolysis and gluconeogenesis 4) gluconeogenesis and glycogenesisAlign the nonapeptide digest fragments in the proper order, from the amino terminus to the carboxyl terminus. The residues in - parentheses are in no particular order. Pepsin fragments: CNBr fragments: Trypsin fragments: Thr-Gly Lys Ala-Arg C Answer Bank (Lys2, Arg, Phe, Ala, Ser)-Met (Arg, Ser, Ala) (Thr, Met)-Gly Phe-(Lys2, Thr, Met)-Gly (Phe, Ser)-Lys
- Digestion of foodstuff: Fill in the table below with the substrate and product of each digestive enzyme. You do not have to be specific (you can say “sugars” rather than “glucose and fructose.” ENZYME SUBSTRATE PRODUCT ORGAN OF PRODUCTION SITE OF ACTION OPTIMAL pH Salivary Amylase Starch Sugar Salivary Glands Oral Cavity Neutral Pepsin Trypsin Carboxypeptidase NucleosidaseDuring digestion, the presence of proteases makes proteins be digested first. Given this occurrence, what is the catalytic rc of the proteases? (Reference: https://www.britannica.com/science/proteolytic-enzyme) It does not do anything directly to the digestion process of proteins It boosts the digestion process to match the digestion of all food matter It slows down the digestion process of other food matter It speeds up the digestion of proteins ingested by the organism 0000Indicate whether each of the following statements is true or false. If false, correct the statement or provide a brief explanation for why it is a) The presence of lipids in the diet slows down digestion in the b) Insulin increases the rate of glucose uptake by the c) Glucagon is the hormone that signals low blood glucose d) Chylomicrons carry TAGs from the diet into the e) During fasting and starvation the liver produces ketone bodies which fuel the heart and f) The muscles can use glucose, fatty acids and ketone bodies for g) When glucose enters the cell it is immediately and reversibly h) Epinephrine stimulates breakdown of glycogen in muscles when there is an immediate need for energy by muscle i) Glucagon stimulates glycogenolysis to maintain the blood glucose j) With high [carbohydrate] levels, excess glucose (after glycogen storage has reached a maximum) is converted to fat, leading to high [malonyl-CoA]. k) Malonyl-CoA inhibits carnitine acyltransferase II , thus slowing…