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General Biology I: Chapter Three
The Chemical Building Blocks of Life (Organic Molecules)
14
Biology
Undergraduate 3
02/05/2017

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Term

Carbohydrates 

Monosaccharides

CH2ON

[image]

Definition

Monosaccharides-> Carbohydrate Monomer

Function: Building blocks of other molecules; energy in aminals

 

Structure: 3 Carbon: Ex. Glyceraldehyde

                5 Carbon (Pentose): Ex. Ribose, Deoxyribose

                6 Carbon (hexose): Ex. Glucose, Frutose,                                                           Galactose

Isomers: Same Chemical Formula; different structures 

Term

Carbohydrates 

Disaccharides

CH2ON

Definition

Function: Energy

Structure: 2 Bonded monosaccharides through H2O Dehydration Synthesis


Glucose + Fructose = Sucrose

Glucose + Glucose = Maltose

Glucose + Galactose = Lactose

Term

Carbohydrates 

Oligosaccharides

CH2ON

Definition

Function: Used for cell recognition; found in plasma membrane

 

Ex: Glycoproteins and glycolipids

Term

Carbohydrates 

Polysaccharides

CH2ON

Definition

Function: Energy Storage; Structural components

Structure: Long chains of monosaccharides.

 

Ex:

Glycogen - animals

Cellulose - structural in plants; fiber in animals

Chitin - fungi and some animals

Startch - plants store glucose

Glycogen - animals store glucose

Term

Nucleic Acids (P.43-44)

CHOPN

Definition

Monomers: Nucleotide

                 *Phosphate group

                 *Pentose- 5 Carbon Sugar- Ribose,                                                                          Deoxyribose

                 *Nitrogenous Base

 

Polymers: DNA and RNA

Term

Nucleic Acids (CHOPN)

DNA and RNA

Definition

DNA (deoxyribosenucleic acid) Function: Stores genetic information

Structure:

Polynucleotide strands (Sugar-P-Sugar-P) make up double helix 

Nitrogenous Bases are connected by Hydrogen bonds

  • Thymine- Adenine
  • Cytosine- Guanine

RNA (ribosenucleic acid) Function: Gene expression

Structure:

One polynucleotide strand

Nitrogenous Bases are connected by Hydrogen bonds

  • Uracil- Adenine
  • Cytosine- Guanine
Term

Nucleic Acids

CHOPN

ATP

NAD+

FAD

Definition

Function: Cellular Energy

Structure: Nitrogenous base

                5 Carbon Sugar (pentose)

                Variable Group

 

ATP: Adenosine Triphosphate

NAD+: Nicotinamide Adenine Dinucleotide

FAD: Flavin Adenine Dinucleotide

Term

Protein Functions (P.45) (Table 3.2)

CHOSN

Definition
  • Enzyme Catalysts- Makes reactions faster
  • Defense
  • Transport
  • Support
  • Motion
  • Regulation
  • Storage
Term

Proteins

CHOSN

Amino Acids

Definition

Monomers

20 Different Kinds; 9 are Essentail

 

[image]

Term

Protein Structures (P.49)

CHOSN

Definition

Primary: Amino Acid

Secondary: Interaction of "R Group"

  • Beta Pleated Sheet
  • Alpha helix

Tertiary: One polypeptide

Quaternary: Multiple polypeptide units

  • Mofits- super secondary structure in many polypeptides.
  • Domain- functional regions of a polypeptide

Chaperone proteins- corrects unfolded proteins

Denaturation- proteins that unfold because of changes in: pH, light, temp, salt

Term

Lipids Functions (P.53)

CHOP

Definition

Functions:

  • Energy Storage (2x as much as carbohydrates)
  • Insulation
  • Shock Absorbers (cusions organs)

 Lipids have no monomers

 

 

Term

Lipids 

CHOP

Triglcerides

Definition

1 Glycerol + 3 Fattty Acid Long C-H Chains

Saturated; Nonsaturated; polysaturated

 

Saturated_____________Nonsaturated

Straight                          Kinky

Single Bonds                   Double Bonds

Animals                          Plant oils

Fats                               Oils

Solid                              Liquid

Term

Lipids

CHOP

Phospholipids

Definition

1 Glycerol + 2 C-H Fattychains + Phosphate group

Polar glycerol head + 2 nonpolar fattychains

Amphipatic- partially dissolve in water 

Automatically form micelles and bilayers (membranes)

[image]

Term

Lipids

CHOP

 

Waxes

Terpenes

Steroids

Definition

Waxes

1 gycerol + 4or5 fatty acids

Function: Water retention or repulsion

Ex: Beeswax, earwax, cutin- leaves

 

Terpenes

Function: Pigmentation

Ex: Pigmentation

 

Steroids

4 interlocking C Rings

Ex: Cholesterol, sex horomones

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