BIOMOLECULES Flashcards
What are the 4 biomolecules?
- Carbohydrates
- Lipids
- Nucleic Acids
- Proteins
WE TYPICALLY GET BIOMOLECULES FROM
FOOD
THE BIOMOLECULES SERVE TO KEEP
ORGANISMS ALIVE
CARBOHYDRATES
ARE?
SUGARS
We get __ kilocalories per gram
of carb that we eat!
4
Most common organic molecule
Carbohydrates
Function: Primary energy source our body
needs
Carbohydrates
Elements present: C, H, O (1:2:1 ratio)
Carbohydrates
Monomer (building block):
Monosaccharides (Glucose is most common)
Carbohydrates
Polymer: Polysaccharides (starch, Glycogen,
Cellulose, Chitin
Carbohydrates
Examples: Chocolate, Bread, Pasta, Fruits,
Vegetables (ALL FROM PLANTS!!!)
Carbohydrates
Single sugar
monosaccharide
Ex: glucose , fructose (in fruits)
Single sugar: monosaccharide
2 monosaccharides
disaccharide
Ex: maltose, sucrose
2 monosaccharides: disaccharide
3+ monosaccharides
polysaccharide
Ex: Starch, Glycogen, Cellulose, and Chitin
3+ monosaccharides
polysaccharides
Used for energy storage in plants
Starch
Types of polysaccharides
Starch, Glycogen, Cellulose, and Chitin
Potatoes, pasta and rice are ?
Starch
They provide a quick form of energy for the body
Starch
Used for energy storage in animals
Glycogen
Provides structural
support in plants (found
in the cell wall)
Cellulose
Found in exoskeletens of
arthropods (insects,
spiders)
Chitin
Found in cell wall of
some fungi
Chitin
Primarily in a Ring shape (but not always)
Carbohydrates
LIPIDS ARE?
FATS
We get _____ kcals per gram
Of fat that we consume.
9
Function: Store energy, Insulates
your body, and make up the cell
membrane!
Lipids
Elements: C-H-O
Lipids
Monomer (Building blocks):
glycerol & 3 fatty acids
Lipids