Textbook Question
Considering that water is a main component of the juices in the stomach and intestines, explain why digestion of lipids is more complicated than digestion of carbohydrates and proteins.
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Ch. 2 The Chemistry of Life
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology24
- Ch. 2 The Chemistry of Life37
- Ch. 3 The Cell54
- Ch. 4 Histology46
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System35
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System41
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart28
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity41
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814Not the one you use?Change textbook
Chapter 2, Problem 1d
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Every element has a characteristic number of protons, which is called the element's mass number.
Verified step by step guidance1
Step 1: Understand the terminology in the statement. The 'mass number' refers to the total number of protons and neutrons in the nucleus of an atom, not just the number of protons. The number of protons in an element is called the 'atomic number.'
Step 2: Analyze the statement. It claims that the characteristic number of protons in an element is called the 'mass number.' This is incorrect because the characteristic number of protons is actually the 'atomic number.'
Step 3: Correct the false statement. The corrected statement should read: 'Every element has a characteristic number of protons, which is called the element's atomic number.'
Step 4: Review the corrected statement to ensure it aligns with the definitions of atomic number and mass number in chemistry and physiology.
Step 5: Conclude that the original statement is false and provide the corrected version for clarity.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Atomic Number
The atomic number of an element is the number of protons found in the nucleus of its atoms. This number uniquely identifies an element and determines its position on the periodic table. For example, hydrogen has an atomic number of 1, meaning it has one proton.
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Atomic Properties
Mass Number
The mass number of an element is the total number of protons and neutrons in the nucleus of an atom. It is not the same as the atomic number, which only counts protons. For instance, carbon has an atomic number of 6 and a mass number of 12, indicating it has 6 neutrons.
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06:50Isotopes
Element Identification
Elements are identified by their atomic number, which is fundamental in chemistry. The mass number, while important for understanding isotopes, does not define the element itself. Therefore, the statement in the question is false; the correct statement is that every element has a characteristic number of protons, which is called the element's atomic number.
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03:36Elements of Life
Related Practice
Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Valence electrons are the electrons in the outermost shell of an atom.
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Textbook Question
Isotopes are atoms with the same ______ number but different ______ numbers.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The mass number of an atom is the sum of its neutrons and protons.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Protons and neutrons have a positive charge and electrons have a negative charge.
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Textbook Question
Explain why monosaccharides are polar and fatty acids are nonpolar even though they both contain the same atoms.
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