Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Chapter 4, Problem 19RA
Summary Introduction
To review:
Role of lactate dehydrogenase or lactic acid dehydrogenase (LDH) in the body.
Introduction:
Enzymes catalyze all
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Chapter 4 Solutions
Human Physiology
Ch. 4 - Use the lock-and-key model to explain how enzymes...Ch. 4 - Explain how enzymes are named, and the nature of...Ch. 4 - Draw graphs to represent the effects of changes in...Ch. 4 - Prob. 4CPCh. 4 - Prob. 5aCPCh. 4 - Prob. 5bCPCh. 4 - Prob. 5cCPCh. 4 - Prob. 6aCPCh. 4 - Define the terms exergonic reaction and endergonic...Ch. 4 - Prob. 7aCP
Ch. 4 - Prob. 7bCPCh. 4 - Which of these statements about enzymes is...Ch. 4 - Which of these statements about enzyme-catalyzed...Ch. 4 - Which of these statements about lactate...Ch. 4 - In a metabolic pathway, a. the product of one...Ch. 4 - In an inborn error of metabolism,
a. a genetic...Ch. 4 - Which of these represents an endergonic...Ch. 4 - Which of these statements about ATP is true? a....Ch. 4 - When oxygen is combined with 2 hydrogens to make...Ch. 4 - Enzymes increase the rate of chemical reactions...Ch. 4 - According to the law of mass action, which of...Ch. 4 - Explain the relationship between an enzyme's...Ch. 4 - Explain how the rate of enzymatic reactions may be...Ch. 4 - Explain how end-product inhibition represents a...Ch. 4 - Prob. 14RACh. 4 - The coenzymes NAD and FAD can "shuttle" hydrogens...Ch. 4 - Prob. 16RACh. 4 - Why do we need to eat food containing niacin and...Ch. 4 - Metabolic pathways can be likened to intersecting...Ch. 4 - Prob. 19RACh. 4 - Suppose you come across a bottle of enzyme tablets...Ch. 4 - Describe the energy transformations that occur...Ch. 4 - Use the reversible reactions involving the...Ch. 4 - Use the graph here and in figure 4.4 to answer the...Ch. 4 - Use the graph here and in figure 4.4 to answer the...Ch. 4 - Prob. 25RACh. 4 - Prob. 26RACh. 4 - Prob. 27RA
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- Which enzymes may catalyze the transfer of an a-amino group from an α-amino acid to an α-ketoacid? 1. hydroxylases 2. aminotransferases 3.transcarbamoylases 4.dehydrogenases 5.synthetasesarrow_forwardThe ketogenic diet is now a trend for people who wants to lose weight. Your task is to come up with a report about this diet and assess its efficacy and implication to the health. Here are your guiding questions: 1) What are ketone bodies and ketogenesis? 2) What is a ketogenic diet? What makes it different from other kinds of diet? 3) What are the good and bad effects of this diet? 4)In your personal opinion, is it safe to continue this diet for a long period of time?arrow_forwardA patient presenting in musty odour and hypopigmentation has also presented with high levels of phenyl pyruvate in their blood. Which enzyme is upregulated? A. Phenylalanine dehydrogenase B. Phenylalanine hydroxylase C. Transaminase D. Arginasearrow_forward
- Lactose intolerance is caused by reduced production of the enzyme lactase. A variety of digestive system problems, such as celiac disease and Crohn’s disease) can also lower the production of lactase. If an individual produces low levels of the enzyme lactase, explain why they might be able to tolerate eating dairy products that contain lower levels of lactose (e.g., hard cheeses, feta cheese, and cottage cheese), but will not be able to tolerate foods with high levels of lactose (e.g., milk).arrow_forwardChoose the correct answer: 1- Regarding to glycogen metabolism, which of the following statements about is correct : A) A key step in the synthesis of glycogen is the formation of UDP-glucose.B) Glycogen is stored mainly in the liver and brain.C) Glucagon increases the synthesis of glycogen.D) In muscle in the fasting state, glycogen is broken down to glucose 6-phosphate, thenfree glucose.E) Insulin inhibits the synthesis of glycogen. 2- Glycogenesis is initiated by: A) UDP-glucose.B) glycogenin.C) glucose-6-phosphate.D) glucose.arrow_forwardKetogenic amino acids may be metabolized to which compound? A. Acetyl CoA B. Pyruvate C. Peptide transferase D. Tyrosinearrow_forward
- Amylase is derived from __________ of bacteria.a) Proteins b) Insulin c) Amyloproteins d) Hormonesarrow_forwardASAParrow_forwardIf a person receives 1-1.5 g of cholesterol with food, its synthesis in the body is reduced. Explain the causes that lead to the reduction of cholesterol synthesis. Give the names of the enzymes.arrow_forward
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