DQuestion 10What reagent(s) could be used to carry out this reaction?H.H-C-OHH-C-OHH-C-OHH-C-OHCH 20HCH 2OHO All of theseBenedictO lodineO Only one of theseO Two of theseO Tollens

An important reaction of monosaccharides is the oxidation of the aldehyde group, there are several…

Answered: Question 10 What reagent(s) could be…

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter4: Cell Structure

Section: Chapter Questions

Problem 10RQ: Peroxisomes got their name because hydrogen peroxide is: used in their detoxification reactions...

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Catalase combines two hydrogen peroxide molecules (H2O2 + H2O2) to make two molecules of water. A gas also forms. What is the gas?
A reducing chemical reaction. reduces the compound to a simpler form adds an electron to the substrate removes a hydrogen atom from the substrate is a catabolic reaction
All antioxidants ________. a. prevent other molecules from being oxidized. b. are coenzymes c. balance charge d. deoxidize free radicals
A monosaccharide is formed from a polysaccharide in what kind of reaction? oxidation-reduction reaction anabolic reaction catabolic reaction biosynthetic reaction
______ are always changed by participating in a reaction. a. Enzymes b. Cofactors c. Reactants d. Coenzymes
Which of the following is not true about enzymes They increase ?G of reactions They are usually made of amino acids They lower the activation energy of chemical reactions Each one is specific to the particular substrate(s) to which it hinds.
In 1976, a team of chemists in the United Kingdom was developing new insecticides by modifying sugars with chlorine (Cl2), phosgene (Cl2CO), and other toxic gases. One young member of the team misunderstood his verbal instructions to test a new molecule. He thought he had been told to taste it. Luckily for him, the molecule was not toxic, but it was very sweet. It became the food additive sucralose. Sucralose has three chlorine atoms substituted for three hydroxyl groups of sucrose (table sugar): The altered sugar binds so strongly to the sweet-taste receptors on the tongue that the human brain perceives it as 600 times sweeter than sucrose. Sucralose was originally marketed as an artificial sweetener called Splenda, but it is now available under several other brand names. Researchers investigated whether the body recognizes sucralose as a carbohydrate by feeding sucralose labeled with 14C to volunteers. Analysis of the radioactive molecules in the volunteers urine and feces showed that 92.8 percent of the sucralose passed through the body without being altered. Some people are worried that the chlorine atoms impart toxicity to sucralose. How would you respond to that concern?
The Krebs cycle converts ________ through a cycle of reactions. In the process, ATP, ________, and ________ are produced. acetyl CoA; FAD, NAD acetyl CoA; FADH2; NADH pyruvate; NAD; FADH2 pyruvate; oxygen; oxaloacetate
Peroxisomes got their name because hydrogen peroxide is: used in their detoxification reactions produced during their oxidation reactions incorporated into their membranes a cofactor for the organelles’ enzymes
6. When a concentrated alkali solution acts on the purine cycle, it breaks down? A. Ester group B. Imidazole nucleus C. Dioxopyrimidine nucleus D. Lactone cycle.
6. Which class or reactions results in the degradation of all macromolecules: a) dehydration synthesis of monomersà polymers with the loss of an H2O with the addition of each monomer b) hydrolysis with the addition of one H2O for each reaction c) oxidation with the loss of an e- d) reduction with the gain of an e-
5. Which class or reactions results in the making of all macromolecules: a) dehydration synthesis of monomersà polymers with the loss of an H2O with the addition of each monomer b) hydrolysis with the addition of one H2O for each reaction c) oxidation with the loss of an e- d) reduction with the gain of an e-

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Question 10 What reagent(s) could be used to carry out this reaction? H. -0- C=0 H-C-OH H-C-OH H-C-OH H-C-OH CH 20H CH 20H O All of these O Benedict O lodine O Only one of these O Two of these O Tollens