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Ch. 2 Chemistry Comes Alive
Marieb - Human Anatomy & Physiology 11th Edition
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoMarieb, Hoehn 11th EditionCh. 2 Chemistry Comes AliveProblema 8
Capitolo 2, Problema 8

Which of the following molecules is an inorganic molecule?
a. Sucrose
b. Cholesterol
c. Collagen
d. Sodium chloride

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1
Understand the difference between organic and inorganic molecules: Organic molecules primarily contain carbon atoms bonded to hydrogen atoms, often forming complex structures. Inorganic molecules generally do not contain carbon-hydrogen bonds and are simpler in structure.
Analyze each option to determine if it is organic or inorganic: Sucrose is a sugar composed of carbon, hydrogen, and oxygen, making it an organic molecule.
Cholesterol is a lipid molecule made mostly of carbon and hydrogen atoms arranged in rings, so it is also organic.
Collagen is a protein made up of amino acids, which contain carbon, hydrogen, oxygen, and nitrogen, classifying it as an organic molecule.
Sodium chloride (NaCl) is a simple salt composed of sodium and chloride ions, lacking carbon-hydrogen bonds, so it is an inorganic molecule.

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Inorganic vs Organic Molecules

Inorganic molecules typically lack carbon-hydrogen (C-H) bonds and are often simple compounds like salts, metals, and minerals. Organic molecules contain carbon atoms bonded to hydrogen and often other elements, forming complex structures such as carbohydrates, lipids, and proteins.
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Percorso guidato
7:17
Classes of MHC Molecules

Examples of Organic Molecules

Organic molecules include carbohydrates (e.g., sucrose), lipids (e.g., cholesterol), and proteins (e.g., collagen). These molecules are essential for biological functions and contain carbon atoms bonded to hydrogen, oxygen, and other elements.
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Levels of Organization Example 1

Sodium Chloride as an Inorganic Molecule

Sodium chloride (NaCl) is a simple ionic compound composed of sodium and chloride ions. It does not contain carbon and is classified as an inorganic molecule, commonly known as table salt.
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The Sodium Potassium Pump
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Domanda del libro di testo

The lipid(s) used as the basis of vitamin D, sex hormones, and bile salts is/are:

a. Triglycerides

b. Cholesterol

c. Phospholipids

d. Prostaglandin

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Domanda del libro di testo

When a pair of electrons is shared between two atoms, the bond formed is called:

a. A single covalent bond

b. A double covalent bond

c. A triple covalent bond

d. An ionic bond

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Domanda del libro di testo

In a beaker of water, the water-water bonds can properly be called:

a. Ionic bonds

b. Polar covalent bonds

c. Nonpolar covalent bonds

d. Hydrogen bonds

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Domanda del libro di testo

Acids:

a. Release hydroxyl ions when dissolved in water

b. Are proton acceptors

c. Cause the pH of a solution to rise

d. Release protons when dissolved in water

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Domanda del libro di testo

Factors that accelerate the rate of chemical reactions include all but:

a. The presence of catalysts

b. Increasing the temperature

c. Increasing the particle size

d. Increasing the concentration of the reactants

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Domanda del libro di testo

A triglyceride consists of:

a. Glycerol plus three fatty acids

b. A sugar-phosphate backbone to which two amino groups are attached

c. Two to several hexoses

d. Amino acids that have been thoroughly saturated with hydrogen

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