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54 Cards in this Set

  • Front
  • Back

1.) Carbohydrates


2.) Lipids


3.) Amino Acids+ Proteins


4.) Nucleotids + Nucleic Acid

4 major groups of carbon compounds

Carbohydrates

Include both sugars and polymers of sugars

Either Polyhydroxy Aldehydes or Ketones

What are sugars?

Monosaccharides

Generally have the formula (CH2O)n


* where n= 3-7

Sugars

Form rings in solution

Aldoses have a Aldehyde group and Ketoses have a Ketone group

What groups do Aldose and Ketoses belong to?

Dehydration Reaction

A type of condensation reaction

Removes a water molecule, forms a new bond between the sugar monomers and continue adding monosaccharides to form a polysaccharide

What happens in a Dehydration reaction?

Polysaccharides

Large molecules formed from many similar or identical building blocks linked by covalent bonds

No, but some prokaryotes and fungi can as can some animals that carry cellulose-digesting prokaryotes in their digestive tracts

Can we digest cellulose?

Glycosidic linkages

What are the monomers in polysaccharides linked by?

Starch and Glycogen

What are the storage polysaccharides?

Cellulose

Example of structural polysaccharides

Starch

1-4 linkage of alpha glucose monomers

Cellulose

1-4 linkage of beta glucose monomers

Starch

A plant polysaccharide

Glycogen

An animal polysaccharide

Glycogen

Used in liver and muscle cells and one of the 1st sources of energy used

Cellulose

Made primarily by plants and one of the major components of wood

Adds a water molecule by breaking a bond, starch can be broken down to glucose and used as energy or sources of building materials through hydrolysis--> it is the reverse of dehydration (hydro=water, lysis=splitting)

How does Hydrolysis reaction work?

Lipids

-NOT a polymer


-Hydrophobic from long carbon chains


-Synthezised via a dehydration reaction

Fats, Phospholipids, and Sterlos

3 types of Lipids

Cellulose, Plants produce 100 billion tons per year.

Most abundant organic compound on earth

Triacylglcerols, which are separated by hydrolysis

Three fatty acids+ one glycerol

Aldose

what group is glucose an example of?

Ketose

What group is fructose an example of?

Ester linkages, when they are synthesized from glycerol and fatty acids by a dehydration reaction.

What are fats molecules joined by?

Unsaturated fats

Fats without double bonds

1.) double bonds change shape of lipid molecules


2.) fats with double bonds are not able to pack as closely together


3.) Fats with double bonds are less likely to solidify

Why are saturated fats different from unsaturated?

A Dehydration reaction

How are fats synthesized?

A hydrolysis reaction

How are fats broken down?

They are structurally similar to fat but only have two fatty acids attached to glycerol.

How do phospholipids differ from fats?

A phosphate which is negatively charged.

What is the third position on the phospholipid occupied by?

Hydrophilic- phosphate


Hydrophobic- hydrocarbons


* this is what causes phospholipids to assemble into bilayers to help form the membranes

What are phosphate groups and what are hydrocarbon chains?

Fluid

Are unsaturated fats fluid or viscous?

Viscous

Are saturated fats fluid or viscous?

Sterols

Lipids that typically have carbon skeletons with four fused rings

Sterols

Not composed of fatty acids+ glycerol but still considered a lipid because they are hydrophobic

A sterol

Cholesterol is an example of this

Proteins

Made from carboxylic acid domains (amino acids)

1.) Amino Group


2.) Carboxylic Acid group


3.) Hydrogen


4.) A variable group, denoted as R

Each amino acid has a central carbon with four things attached to it

Polypeptides, resulting in peptide bond/ linkages

What do amino acids form when they are joined together via dehydration reaction?

Primary structure

The amino acid sequence of the protein found from the DNA, hard to determine from this structure.

Secondary Structure

Coiled or folded patterns that form in segments of some proteins


-NOT the side chains

Secondary Structure

The result of the hydrogen bonds between the repeating parts of the polypeptide backbone

Tertiary Structure

Stabilized by variety of chemical bonds and have disulfide bridges

Disulfide Bridges

Strongest forces maintaining the tertiary shape of polypeptides

Quaternary Structure

When a protein is made of more than one polypeptide chain

Mad Cow disease

Result from a misfolded protein, also known as "prion disease"

Structural isomers

Glucose and fructose are example of this type of structure

Covalent Bond

Nucleotides in a single DNA chain are held together by this between phosphate group of one nucleotide and the sugar group of the next nucleotide

A phosphate+ a sugar + a nitrogenous base

What is a nucleotide consist of?

The 3' end

What end are nucleotides added to on the polynucleotide chain?

RNA

Single strand that has base pairing