Textbook Question
All the chemical reactions that occur in the human body are collectively referred to as
(a) Anabolism
(b) Catabolism
(c) Metabolism
(d) Homeostasis
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Ch. 2 The Chemical Level of Organization
Martini, Nath, Bartholomew12th EditionFundamentals of Anatomy and PhysiologyISBN: 9780137854011
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Table of contents
- Ch. 1 An Introduction to Anatomy and Physiology25
- Ch. 2 The Chemical Level of Organization34
- Ch. 3 The Cellular Level of Organization29
- Ch. 4 The Tissue Level of Organization24
- Ch. 5 The Integumentary System17
- Ch. 6 Bones and Bone Structure33
- Ch. 7 The Axial Skeleton11
- Ch. 8 The Appendicular Skeleton17
- Ch. 9 Joints13
- Ch. 10 Muscle Tissue12
- Ch. 11 The Muscular System28
- Ch. 12 Nervous Tissue18
- Ch. 13 The Spinal Cord, Spinal Nerves, and Spinal Reflexes22
- Ch. 14 The Brain and Cranial Nerves20
- Ch. 15 Sensory Pathways and the Somatic Nervous System17
- Ch. 16 The Autonomic Nervous System and Higher-Order Functions30
- Ch. 17 The Special Senses15
- Ch. 18 The Endocrine System21
- Ch. 19 Blood31
- Ch. 20 The Heart31
- Ch. 21 Blood Vessels and Circulation26
- Ch. 22 The Lymphatic System and Immunity25
- Ch. 23 The Respiratory System4
- Ch. 24 The Digestive System18
- Ch. 26 The Urinary System31
- Ch. 27 Fluids & Electrolytes30
- Ch. 28 The Reproductive System12
- Ch. 29 Development and Inheritance17
Martini, Nath, Bartholomew12th EditionFundamentals of Anatomy and PhysiologyISBN: 9780137854011Not the one you use?Change textbook
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Martini, Nath, Bartholomew 12th EditionCh. 2 The Chemical Level of OrganizationProblem 11
Martini, Nath, Bartholomew 12th EditionCh. 2 The Chemical Level of OrganizationProblem 11Chapter 2, Problem 11
A pH of 7.8 in the human body typifies a condition referred to as
(a) Acidosis
(b) Alkalosis
(c) Dehydration
(d) Homeostasis
Verified step by step guidance1
Step 1: Understand the normal pH range of human blood, which is typically around 7.35 to 7.45, indicating a slightly alkaline environment.
Step 2: Recognize that a pH value below 7.35 indicates acidosis, a condition where the blood is too acidic.
Step 3: Recognize that a pH value above 7.45 indicates alkalosis, a condition where the blood is too alkaline.
Step 4: Compare the given pH value of 7.8 to the normal range and determine whether it is acidic or alkaline relative to normal blood pH.
Step 5: Conclude that since 7.8 is above the normal range, the condition is alkalosis, which corresponds to option (b).
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
pH Scale and Normal Blood pH
The pH scale measures how acidic or basic a solution is, ranging from 0 to 14, with 7 being neutral. Normal human blood pH is tightly regulated between 7.35 and 7.45. Values above this range indicate a more basic (alkaline) state, while values below indicate acidity.
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pH Scale
Alkalosis
Alkalosis is a condition where the blood pH rises above the normal range, typically above 7.45, indicating increased alkalinity. It can result from factors like hyperventilation or excessive loss of acids and affects bodily functions by disrupting enzyme activity and electrolyte balance.
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Guided course
03:46Homeostasis Example 1
Acidosis
Acidosis occurs when blood pH falls below the normal range (below 7.35), indicating increased acidity. It can be caused by respiratory or metabolic issues and leads to symptoms like fatigue and confusion due to impaired cellular function.
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03:46Homeostasis Example 1
Related Practice
Textbook Question
The speed, or rate, of a chemical reaction is influenced by
(a) The presence of catalysts
(b) The temperature
(c) The concentration of the reactants
(d) a, b, and c are all correct
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Textbook Question
Special catalytic molecules called___speed up chemical reactions in the human body.
(a) enzymes
(b) cytozymes
(c) cofactors
(d) activators
(e) cytochromes
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Textbook Question
A(n)__is a solute that dissociates to release hydrogen ions, and a(n)___is a solute that removes hydrogen ions from solution.
(a) base, acid
(b) salt, base
(c) acid, salt
(d) acid, base
Textbook Question
Which of the following chemical equations illustrates a typical decomposition reaction?
a. A + B → AB
b. AB + CD → AD + CB
c. 2A₂+ B₂ → 2A₂B
d. AB → A + B
Textbook Question
Which of the following is not a function of a protein?
(a) Support
(b) Transport
(c) Metabolic regulation
(d) Storage of genetic information
(e) Movement
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