Kategoriak: All - macromolecules - carbohydrates - lipids - functions

arabera Sage LI 8 years ago

382

Macromolecues

Key biological molecules essential for life include nucleic acids, proteins, lipids, and carbohydrates. Nucleic acids, such as DNA and RNA, carry genetic information and are composed of nucleotides.

Macromolecues

Carbon, hydroge, oxygen, and phosphates

Macromolecues

Proteins

Exapmles
Transport

Carrier proteins

Move molecues around

Structural

Fibrous and stringy

Provide support

Enzymes

Biological Catalysts

Muscle Proteins

Responsible for movement

Antibodies

Defends the body from pathogens

Polymer
Varying in size and shape

Hydrogen bonds form shapes

Quaternary

Tertiary

Secondary

Primary

Monomer
Ammino Acids

Made of

R group

Carboxyl group

Ammino Group

20 types

Carbon, hydrogen, Oxygen, Nitrogen, Sulfur

Nucleic Acids

ATP
RNA

Single stranded

Creates proteins

Contains ribose sugar

DNA

Double stranded

Determines our genetic makeup

Contains deoxyribose sugar

Carry genetic information
Nucleotide

5 carbon sugar + phosphate group + nitrogen base

Lipids

Examples
Steriods
Oils
Waxes
Fats
Function
Water Proofing
Insulation
Natural steriods

Cholesterol

Long-term energy storage

Triglycerides

3 fatty acids + glycerol

Characteristics
Nonpolar

Hydrophobic, not water soluable

Fatty acids
Unsaturated

Usually come from plants

Liquid at room temperature

Contains double bonds in carbon chains

Saturated

Usually come from animals

Solid at room temperature

No double bonds between carbon chains

Carbohydrates

Polymers
Subtopic
Monomers
Monosaccharides
# of basic sugars
Poly-
Di-

Lactose

Milk sugar

Maltose

Used for germinating seeds

Sucrose

Used by humans

Mono-

Glucose and fructose

Function in cells
Part of cell structure

Glycogen

Animal storage sugars

Starch

Root and seed glucose

Cellulose

Fiberous polymer, hard to digest

Source of usable energy
Carbon, Hydrogen, and Oxygen