Proteins and Fats

Structure and Function

Proteins and Fats

What are some examples of protein?

Proteins and Fats

What are some examples of protein?

Fingernails

Proteins and Fats

What are some examples of protein?

Hair

Proteins and Fats

What are some examples of protein?

Egg Albumin

Proteins and Fats

What are some examples of protein?Feathers

Proteins and Fats

Proteins serve many functions in an organism: Structural-collagen

Proteins and Fats

Proteins serve many functions in an organism: Structural-collagen Transport-Hemoglobin

Proteins and Fats

Proteins serve many functions an organism: Structural-collagen Transport-Hemoglobin Immune-Antibodies

Proteins and Fats

Proteins serve many functions in an organism: Structural-collagen Transport-Hemoglobin Immune-Antibodies Catalytic-Enzymes

Proteins and Fats

All proteins, regardless of the source, animal, plant, fungal or bacterial, are all made from the same 20 amino acids.

Proteins and Fats

All proteins, regardless of the source, animal, plant, fungal or bacterial, are all made from the same 20 amino acids.

Amino acids contain carbon, hydrogen, oxygen and NITROGEN

Proteins and Fats

Amino Acid StructureAll amino acids have the following common structure.

Proteins and Fats

Amino Acid StructureAll amino acids have the following common structure.

Proteins and Fats

Amino Acid Structure

The side group is what makes each amino acid unique.

Proteins and Fats

Proteins and Fats

Proteins are joined together by the DEHYDRATION SYNTHESIS REACTION.

Proteins and Fats

How can 20 amino acids make all the proteins found in living organisms?

Proteins and Fats

How can 20 amino acids make all the proteins found in living organisms?

Different combinations and lengths(Letters of the alphabet)

Proteins and Fats

Each amino acid is like a letter in the alphabet, the change of one amino acid can change the shape of the protein.

Proteins and Fats

This is seen in hemoglobin where one acid change results in Sickle Cell Anemia.

Proteins and Fats

Proteins have a specific three dimensional shape which is important in their biological role.

Proteins and Fats

Proteins and Fats

The shape of a protein is influenced by temperature and pH.

Out side of a specific range the protein breaks down, its DENATURED.

Proteins and Fats

Proteins and Fats

What are some examples of fats?

Proteins and Fats

What are some examples of fats?

Animal Fat

Proteins and Fats

What are some examples of fats?

Plant Fat

Proteins and Fats

What are some examples of fats?

Lard

Proteins and Fats

Fats serve two functions in an organism: Storage of excess energy

reserves

Proteins and Fats

Fats serve two functions in an organism: Storage of excess energy

reserves Insulation whale

blubber

Proteins and Fats

Fats serve three functions in an organism: Storage of excess energy

reserves Insulation whale

blubber Protection

Proteins and Fats

All lipids, regardless of the source, animal, plant, fungal or bacterial, are composed of carbon, hydrogen and oxygen.

They are nonpolar (do not dissolve in water)

Proteins and Fats

All lipids, regardless of the source, animal, plant, fungal or bacterial, are composed of carbon, hydrogen and oxygen.

They are made of two molecules: glycerol

Proteins and Fats

All lipids, regardless of the source, animal, plant, fungal or bacterial, are composed of carbon, hydrogen and oxygen.

They are made of two molecules: glycerol & fatty acids

Proteins and Fats

Glycerol Structure

Proteins and Fats

Fatty Acid Structure

They can exist as two types, saturated and unsaturated.

Proteins and Fats

Fatty Acid Structure

They can exist as two types, saturated and unsaturated.

They can range from 12 to 22 carbons in length.

Proteins and Fats

Triglycerides are the most common fats and are composed of 1 glycerol and three fatty acid molecules.

Proteins and Fats

Triglycerides are the most common fats and are composed of 1 glycerol and three fatty acid molecules.

Guess what reaction combines them.

Proteins and Fats

Triglycerides are the most common fats and are composed of 1 glycerol and three fatty acid molecules.

Guess what reaction combines them.DEHYDRATION SYNTHESIS

Proteins and Fats

Proteins and Fats

Phospholipids are another type of fat and make up cell membranes.

Proteins and Fats

Proteins and Fats

1. What elements are found in proteins?

Proteins and Fats

1. What elements are found in proteins?

Carbon, Hydrogen, Oxygen and Nitrogen

Proteins and Fats

2. What elements are found in carbohydrates and fats?

Proteins and Fats

2. What elements are found in carbohydrates and fats?

Carbon, Hydrogen and Oxygen

Proteins and Fats

3. Is C12H22011 a fat or carbohydrate?

4. How do you know?

Proteins and Fats

3. Is C12H22011 a fat or carbohydrate?Carbohydrate

4. How do you know?2 to 1 ratio of hydrogen to oxygen