Question 19 QUESTION 19Since amino acids are weak acids they are often used as buffers. In this titration curve of glycine which is the best pH region(s) I, II, III, IV for optimal buffering capacity of glycine? Clue: there is arelationshinship between optimal buffering capacity and pKa10 9.60IV)pH12342.0.51.01.52.0OH (equivalents)O I| and IVO only IO l and IIO only IO Il and IIQUESTION 20How many amino acid side chains in this peptide are capable of absorbing light at 280nm?lick Save All Answers to save all answers.Save All Answer77 0ame SrypaedSpoty

Buffer exhibits the highest resistance to acid and base addition for the equimolar solution (when…

Answered: Since amino acids are weak acids they…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Question 11. // Hint: Isoelectric focusing separates proteins based on their pI values, and can separate proteins that only differ by a net charge of ±1.±1. Recall that an amino acid residue with a negatively charged R group has a relatively low isoelectric point (pI) where it has zero net charge. Likewise, an amino acid residue with a positively charged R group has a relatively high isoelectric point (pI) where it has zero net charge. Order from Low pH to High pH
QUESTION 7 Sometimes, during stress or trauma, a person hyperventilates. To avoid fainting, the person is advised to breath into a paper bag. Explain how this "first-aid" technique help in restoring blood pH to normal levels.
Question 37 Locard’s exchange principle states that, whenever two objects come into contact with one another, there is exchange of materials between them. a. True b. False
Question 56 You (a healthy individual) are swimming underwater when you can no longer resist the urge to breathe. This overwhelming urg probably due to O the autorhymthic cells in your diaphragm contracting O the decrease in O 2 available to the cells of the body. O the increase in plasma H *. O the increase in pH has made your blood dangerously alkaline. 1.67
QUESTION NO.1which of the following are chemical characteristics of monosaccharides? A. They contain multiple hydroxyl groupsB. they contain an aldehyde or ketone group C. They contain a branching carbon backbone D. They contain a carbon-carbon double bond E. Every carbon in a monosaccharide is fully reduced F. Every carbon in a monosaccharide is a chiral centerQUESTION NO.2 glucose absorption is hindered by _________ deficiency A. Retinol B. Thiamine C. Potassium D. Sodium E. Ascorbic acid F. Calciferol QUESTION NO.3 phospholipids is made primarily from A. L-glycerol 1-phosphate B. L-glycerol 3-phosphate C. D-glycerol 3-phosphate D. -glycerol 1-phosphate E. sn-glycerol 1-phosphate F. sn-glycerol 3-phosphate
Question 52 A 6-month-old child has developed skin irritation due to an allergic reaction. He has been prescribed a topical skin ointment. The nurse will consider which of the following before administering the drug? That the infant's skin has greater permeability than that of an adult That there is less body surface area to be concerned about That there is decreased absorption rates of topical drugs in infants That there is a lower concentration of water in an infant's body compared with an adult
Question:- 17. The optimal volume for blood-culture collection on adults is a. 20 mL of blood per bottle b. precisely 10 mL of blood in each of two bottles c. 20 mL of blood distributed betvveen two bottles but not exceeding 12 mL per vial d. dependent upon the patient's body weight
question 24 DNA is a hereditary molecular that is composed of A Deoxyribose,phosphate, and nitrogen bases B Deoxyribose,a pentose, and nucleic acids C Sugar,proteins and thymine D Adenine, phosphate, and ribose
QUESTION NO. 1Statements: (1) Glucose is both a hexose and a aldose. (2) There can never be more than three enantiomers for a molecule. (3) All common disaccharides have beta-one-four linkages. Which statements are true?QUESTION NO.2 Erythrocyte glucose transporter illustrates the type of A. ion driven active transport B. facilitated diffusion C. active transport D. simple diffusion E. secondary active transportQUESTION NO.3 which of the following statement/s accurately describe the surface of a lipid droplet? A. a monolayer of phospholipids B. a bilayer of phospholipid C. a network of perilipin protein D. a structured layer of triacylglycerol E. a chaotic hydrophobic/ hydrophilic interface
QUESTION 16 Peptidyl transferase activity (peptide bond enzyme activity) is associated with what site in the ribosome? E P A X
Question 47 A patient complains of feeling lightheaded when assuming an upright position. On assessment you note that the patient has dry mucus membranes and they report not having urinated in the past 18 hours. Lab work indicates sodium excess and increased blood osmolarity. Which of the following interventions should be utilized to correct the patients’ fluid imbalance? Question 47 options: administer oral rehydration solutions remove sources of salt excess administer 25% albumin solution IV restrict additional fluid intake
Question 1 - Photosynthesis lab Four common plant pigments are likely to be separated and visualized by the paper chromatography experiment. List the expected colors of each of these four pigments below.A) CaroteneB) Chlorophyll aC) Chlorophyll bD) Xanthophyll Explain the mechanism of how floating disks correspond to the rate of photosynthesis. List 2 controlled variables in the leaf disk assay List 2 manipulated variables in the leaf disk assay What is the purpose of adding baking soda to the leaf disk assay? What would you expect during the leaf disk assay if baking soda was not added at all?

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