HUMAN BIOLOGY + VIRTUAL PAC
HUMAN BIOLOGY + VIRTUAL PAC
16th Edition
ISBN: 9781264359028
Author: Mader
Publisher: MCG/CREATE
bartleby

Videos

Question
Book Icon
Chapter 2.2, Problem 3LO
Summary Introduction

To explain:

The structure of the pH scale and the importance of buffers to biological systems.

Introduction:

The pH scale is used to measure the alkalinity and the acidity of the solution. It ranges on a scale from 0-14. The pH of 7 is considered neutral, pH below 7 is considered acidic and pH above 7 is considered alkaline. The pH above 7 is considered alkaline due to the increase in the concentration of the hydroxide ions and pH below 7 is acidic due to the increase in the concentration of the hydrogen ions. The concentration of the hydrogen and hydroxide ions is maintained by the addition of buffers into the solution. The examples include carbonic acid, and acetic acid. The carbonic acid dissociates to form the hydrogen ions and the bicarbonate ions, acetic acid dissociated to form acetate ions and hydrogen ions and water consists of hydrogen and hydroxide ions. The examples of acidic solutions are lemon juice, vinegar, tomatoes and coffee and examples of alkaline solutions include milk of magnesia and ammonia.

Pictorial representation:

The structure of pH scale is well represented in Fig.1.

HUMAN BIOLOGY + VIRTUAL PAC, Chapter 2.2, Problem 3LO

Fig.1: Structure of pH scale ranging from 0 to 14.

Blurred answer
Students have asked these similar questions
A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?   The cell membranes are more resistant than normal.   An isotonic solution had been added instead of water.   A solution of 0.1 M NaCl had been added instead of water.   Not enough water had been added to the red blood cell pellet.   The man had sickle-cell anaemia.
A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?   The cell membranes are more resistant than normal.   An isotonic solution had been added instead of water.   A solution of 0.1 M NaCl had been added instead of water.   Not enough water had been added to the red blood cell pellet.   The man had sickle-cell anaemia.
With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobin

Chapter 2 Solutions

HUMAN BIOLOGY + VIRTUAL PAC

Ch. 2.2 - Prob. 3LOCh. 2.2 - List the characteristics of water and explain how...Ch. 2.2 - Prob. 2CYPCh. 2.2 - Prob. 3CYPCh. 2.3 - List the four classes of organic molecules that...Ch. 2.3 - Describe the processes by which the organic...Ch. 2.3 - Prob. 1CYPCh. 2.3 - List the four classes of organic molecules.Ch. 2.3 - Prob. 3CYPCh. 2.4 - Prob. 1LOCh. 2.4 - Prob. 2LOCh. 2.4 - Prob. 3LOCh. 2.4 - Prob. 4LOCh. 2.4 - Prob. 1BTHCh. 2.4 - Prob. 2BTHCh. 2.4 - Explain the differences between a monosaccharide,...Ch. 2.4 - Prob. 2CYPCh. 2.4 - Prob. 3CYPCh. 2.5 - Prob. 1LOCh. 2.5 - Prob. 2LOCh. 2.5 - Why might physicians resort to calling HDLs and...Ch. 2.5 - Prob. 1.2BTHCh. 2.5 - Prob. 2.1BTHCh. 2.5 - Prob. 2.2BTHCh. 2.5 - Prob. 1CYPCh. 2.5 - Prob. 2CYPCh. 2.5 - Prob. 3CYPCh. 2.6 - Prob. 1LOCh. 2.6 - Prob. 2LOCh. 2.6 - List the four levels of protein structure and...Ch. 2.6 - Prob. 1CYPCh. 2.6 - Prob. 2CYPCh. 2.6 - Prob. 3CYPCh. 2.7 - Prob. 1LOCh. 2.7 - Prob. 2LOCh. 2.7 - Prob. 1CYPCh. 2.7 - Prob. 2CYPCh. 2.7 - Prob. 3CYPCh. 2 - Prob. 1ACh. 2 - Prob. 2ACh. 2 - Prob. 3ACh. 2 - Prob. 4ACh. 2 - Prob. 5ACh. 2 - Prob. 6ACh. 2 - Prob. 7ACh. 2 - Prob. 8ACh. 2 - Prob. 9ACh. 2 - Prob. 10ACh. 2 - Prob. 11ACh. 2 - Prob. 12ACh. 2 - Prob. 13ACh. 2 - Prob. 14ACh. 2 - Prob. 15ACh. 2 - Prob. 16ACh. 2 - Prob. 17ACh. 2 - Prob. 18ACh. 2 - Prob. 19ACh. 2 - This nucleic acid is typically involved in energy...Ch. 2 - Prob. 1TCCh. 2 - Prob. 2TCCh. 2 - Name another substance that is needed in the body...Ch. 2 - Prob. 4TCCh. 2 - Prob. 5TC
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
GCSE Chemistry - Acids and Bases #34; Author: Cognito;https://www.youtube.com/watch?v=vt8fB3MFzLk;License: Standard youtube license