Organic Macromolecules Flashcards
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Organic Macromolecules Flashcards

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Questions and Answers

What is an organic compound?

All contain carbon, produced by/occur naturally in organisms.

What is an inorganic compound?

Typically do not contain carbon; examples include water, salts, minerals.

What are hydrocarbons?

Simplest organic compounds made up of only hydrogen and carbon.

What are substituted hydrocarbons?

<p>Hydrocarbons with elements other than hydrogen and carbon attached.</p> Signup and view all the answers

What are the six most common elements found in organic compounds?

<p>Carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur.</p> Signup and view all the answers

What are biological macromolecules?

<p>Large, complex substituted organic molecules with specific roles in organisms.</p> Signup and view all the answers

What are monomers?

<p>Single unit building blocks of larger molecules.</p> Signup and view all the answers

What are polymers?

<p>Long chains of monomers; large molecules.</p> Signup and view all the answers

What are the four major groups of biological macromolecules?

<p>Carbohydrates, proteins, lipids, nucleic acids.</p> Signup and view all the answers

What are carbohydrates composed of?

<p>Carbon, hydrogen, and oxygen.</p> Signup and view all the answers

What is a monosaccharide?

<p>Simplest carbohydrates; single-ringed, also called sugars.</p> Signup and view all the answers

What is an isomer?

<p>Two molecules that share the same molecular formula but different structural formulas.</p> Signup and view all the answers

What are disaccharides?

<p>Double-ringed sugars formed through dehydration synthesis.</p> Signup and view all the answers

What is dehydration synthesis?

<p>Formation of a bond between monomers caused by the removal of water.</p> Signup and view all the answers

What is hydrolysis?

<p>Breaking of a bond between monomers by adding water.</p> Signup and view all the answers

What are polysaccharides?

<p>Complex carbohydrates/polymers made up of chains of monosaccharides.</p> Signup and view all the answers

What are the types of polysaccharides?

<p>Starch, cellulose, glycogen, and chitin.</p> Signup and view all the answers

What is starch?

<p>A molecule in which plants store excess sugar in the roots, stems, and leaves.</p> Signup and view all the answers

What is cellulose?

<p>A tough structural polysaccharide found in plant cell walls.</p> Signup and view all the answers

What is glycogen?

<p>Animal starch; molecule in which animals store excess sugar in the liver.</p> Signup and view all the answers

What is chitin?

<p>A tough structural polysaccharide found in the exoskeleton of insects, spiders, and crustaceans.</p> Signup and view all the answers

What do proteins contain?

<p>Carbon, hydrogen, oxygen, nitrogen, sulfur.</p> Signup and view all the answers

What are amino acids?

<p>Monomers of proteins; 20 different types.</p> Signup and view all the answers

What is a carboxyl group?

<p>COOH part of the amino acid.</p> Signup and view all the answers

What is an amine group?

<p>Varies on each amino acid.</p> Signup and view all the answers

What is a replacement group?

<p>Differs between each specific amino acid.</p> Signup and view all the answers

What are polypeptides?

<p>Polymers; long chains of amino acids (monomers).</p> Signup and view all the answers

What is a dipeptide?

<p>Two linked amino acids.</p> Signup and view all the answers

What is a peptide bond?

<p>Special bond that holds together a chain of amino acids.</p> Signup and view all the answers

What are fibrous proteins?

<p>Structural proteins; long strands such as keratin and collagen.</p> Signup and view all the answers

What are globular proteins?

<p>Proteins that are chemically reactive such as enzymes, hormones, and antibodies.</p> Signup and view all the answers

What are enzymes?

<p>Organic catalysts that speed up chemical reactions without being chemically altered.</p> Signup and view all the answers

What is a substrate?

<p>The specific substance a particular enzyme will work on.</p> Signup and view all the answers

What is the lock and key theory?

<p>An enzyme works on a particular substrate that fits its 3D shape.</p> Signup and view all the answers

What is an activated complex?

<p>When the substrate and enzyme are joined together.</p> Signup and view all the answers

What is denaturization?

<p>Destruction of the normal shape of a protein.</p> Signup and view all the answers

What do lipids contain?

<p>Carbon, hydrogen, and oxygen.</p> Signup and view all the answers

Study Notes

Organic Compounds

  • Contain carbon and are produced naturally by organisms.
  • Integral to various biological processes and structures.

Inorganic Compounds

  • Generally do not contain carbon, e.g., water, salts, minerals.

Hydrocarbons

  • Simplicity defines them; composed only of hydrogen and carbon.
  • Serve as foundational molecules in organic chemistry.

Substituted Hydrocarbons

  • Hydrocarbons modified by elements other than hydrogen or carbon.

Common Elements in Organic Compounds

  • Six primary elements: carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur.

Biological Macromolecules

  • Complex organic molecules with distinct functions in living organisms.

Monomers and Polymers

  • Monomers are single unit building blocks.
  • Polymers are long chains formed from monomers.

Major Groups of Biological Macromolecules

  • Four main categories: carbohydrates, proteins, lipids, nucleic acids.

Carbohydrates

  • Composed of carbon, hydrogen, and oxygen.
  • Primarily serve as energy sources; serve structural roles in some cases.

Monosaccharides

  • Simplest form of carbohydrates; single-ringed sugars ending in -ose.

Isomers

  • Molecules with identical molecular formulas but different structures, e.g., glucose vs. fructose (C6H12O6).

Disaccharides

  • Formed through dehydration synthesis; consist of two ring structures.

Dehydration Synthesis

  • Process of bonding monomers by removing water.

Hydrolysis

  • The chemical reaction that breaks bonds between monomers by adding water.

Polysaccharides

  • Formed from chains of monosaccharides; complex carbohydrates.

Types of Polysaccharides

  • Include starch, cellulose, glycogen, and chitin.

Starch

  • Storage form of excess sugar in plants, found in roots, stems, and leaves; uses alpha 1-4 linkages.

Cellulose

  • Structural polysaccharide in plant cell walls; features beta 1-4 linkages, forming sheets through hydrogen bonding.

Glycogen

  • Animal equivalent of starch for sugar storage in the liver, with a highly branched structure.

Chitin

  • Tough structural polysaccharide found in the exoskeletons of invertebrates, also contains nitrogen.

Proteins

  • Composed of carbon, hydrogen, oxygen, nitrogen, and sulfur.
  • Functionally diverse: structural (hair, nails), reactive (hormones, antibodies, enzymes).

Amino Acids

  • Building blocks of proteins; 20 different types exist.

Functional Groups in Amino Acids

  • Carboxyl group (COOH) and amine group vary among different amino acids.

Polypeptides

  • Chains of amino acids; referred to as proteins when they achieve specific structures, ranging from 50 to 100,000 amino acids.

Peptide Bond

  • The bond that links amino acids in a polypeptide chain.

Types of Proteins

  • Fibrous proteins: structural components (e.g., keratin, collagen).
  • Globular proteins: involved in chemical reactivity (e.g., enzymes, hormones).

Enzymes

  • Organic catalysts that accelerate chemical reactions without alteration.
  • Lower activation energy and exhibit specificity based on their unique shapes.

Substrate

  • The specific target on which an enzyme acts.

Lock and Key Theory

  • Enzymes interact with particular substrates that fit their specific 3D shapes.

Activated Complex

  • A temporary structure formed when an enzyme binds to its substrate.

Denaturation

  • Loss of a protein's normal shape due to environmental changes (pH, temperature), rendering it unable to function.

Lipids

  • Composed of carbon, hydrogen, and oxygen; play critical roles in cellular structure and energy storage.

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Test your knowledge of organic macromolecules with these flashcards. Each card provides a key term along with its definition, helping you understand the characteristics and differences between organic and inorganic compounds. Perfect for students studying chemistry or related fields.

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