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Organic Chemistry
Concepts of Biology 111 Test 1
36
Biology
Undergraduate 1
01/30/2013

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Cards

Term
Explain what it means to be an organic molecule
Definition
contain a carbon backbone and at least one C-H bond
Term
4 main organic molecules
Definition
Carbons, proteins, lipids, nucleic acids
Term
Monomer
Definition
building blocks of substance
Term
Polymer
Definition
many monomers bonded together
Term
Dehydration synthesis
Definition
a hydroxyl OH- group and a hydrogen atom H+ are removed to form a bond
Term
Hydrolysis
Definition
adding a water molecule to break a bond in a molecule
Term
Structure and function of carbohydrates
Definition

short term energy storage

C,H,O

Term
Simple carbohydrates
Definition

Monosaccharide- 3-7 carbon atoms (glucose)

Disaccharide- 2 monosaccharides

Term
Complex carbohydrates
Definition

Polysaccharide- up to 4,000 monosaccharides long

starch, glycogen, cellulose

Term
Most important monosaccharide in the body
Definition
glucose
Term
List 3 disaccharides
Definition
maltose, sucrose, lactose
Term
List 3 polysaccharides
Definition
Starch, glycogen, cellulose
Term
Structure and function of lipids
Definition
Mostly C and H, a little O
Term
3 classes of lipids
Definition
Triglycerides, phospholipids, steroids
Term
Structure and function of a triglyceride
Definition
Dietary fats and oils, one glycerol molecule with three fatty acid molecules
Term
Saturated fat
Definition
no double bonds between carbon atoms, causes cardiovascular disease
Term
Unsaturated fat
Definition
contains double bonds, healthy fat
Term
Which type of triglyceride is least healthy
Definition
trans fats
Term
Structure and function of phospholipids
Definition
a glycerol, a phosphate group, and 2 fatty acids. form structure of a cell membrane
Term
Structure and function of steroids
Definition
4 carbon rings
Term
Functions of proteins
Definition

Support for hair, nails, ligaments, tendons, and skin

**test answer: ENERGY is not a function of protein**

Term
Structure of amino acid
Definition
Central carbon H-COOH, NH2
Term
Total number of different amino acids
Definition
20 amino acids
Term
Peptide bond
Definition
connect amino acids
Term
Denaturation
Definition
change in shape of proteins usually caused by pH or heat
Term
4 levels of protein organization
Definition

primary structure- linear sequence of amino acids

secondary structure- alpha helix, beta pleated sheet

tertiary structure- 3D shape, hydrophobic amino acids, hydrogen bonding

Term
Type of bond that helps maintain tertiary structure
Definition
hydrogen bonding
Term
2 types of nucleic acids
Definition
DNA and RNA
Term
DNA functions
Definition
base sequence codes for amino acids
Term
mRNA functions
Definition
carries the code to the ribosomes for protein synthesis
Term
Structure of a nucleotide
Definition
made of sugar, a phosphate group, a nitrogen base
Term
4 bases found in DNA
Definition

Adenine, thymine, guanine, cytosine

A-T

C-G

Term
Type of bond that holds the base pairs together
Definition
H-bonds create the double stranded helix molecule
Term
4 bases in RNA
Definition

adenine, cytosine, guanine, uracil

A-G

C-U

Term
Types of sugar found in DNA and RNA
Definition

DNA- Deoxyribose, thymine

RNA: ribose, uracil

Term
Central dogma of molecular genetics
Definition
DNA--> RNA--> Protein
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