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
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology26
- Ch. 2 The Chemistry of Life38
- Ch. 3 The Cell55
- Ch. 4 Histology47
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System36
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System42
- 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 Heart30
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity45
- 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
Chapter 2, Problem 2
Isotopes are atoms with the same ______ number but different ______ numbers.
Verified step by step guidance1
Understand the concept of isotopes: Isotopes are variants of a particular chemical element that have the same number of protons but differ in the number of neutrons.
Recall that the atomic number represents the number of protons in an atom, which defines the element.
Note that the mass number is the sum of protons and neutrons in the nucleus of an atom.
Recognize that isotopes of an element have the same atomic number (protons) but different mass numbers due to varying numbers of neutrons.
To answer the question, fill in the blanks with 'atomic' for the first blank and 'mass' for the second blank, as isotopes have the same atomic number but different mass numbers.
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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. It defines the element and determines its position on the periodic table. For isotopes of the same element, the atomic number remains constant, indicating that they are the same element despite differences in their mass.
Mass Number
The mass number is the total number of protons and neutrons in an atom's nucleus. Isotopes of an element differ in mass number because they have varying numbers of neutrons. This difference in neutrons leads to variations in the physical properties of the isotopes, such as stability and radioactivity.
Isotopes
Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons. This results in different mass numbers for the isotopes. Isotopes can be stable or unstable, with unstable isotopes undergoing radioactive decay, which is important in fields like medicine and archaeology.
Related Practice
Textbook Question
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.
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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.
Valence electrons are the electrons in the outermost shell of an atom.
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Textbook Question
In certain types of radioactive decay, the isotope releases a particle called an alpha particle, which contains two protons and two neutrons. When this happens, is the product still the same element? Why or why not?
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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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