Levels Of Organization

Question 1

9 levels name in order

Answer 1

1. Atom
2. molecule
3. macromolecule
4. organelle
5. cell
6. tissue
7. organ
8. system
9. organism

Question 2

Atom

Answer 2

• elements fundamental building blocks of matter
• the diff is not matter but organization
• KEY atoms Carbon,Oxygen,Hydrogen,Nitrogen

Question 3

Molecules

Answer 3

• 2 or more atoms bonded together, all molecules r combo of atoms
• molecules have energy content as well as matter
• all complex systems come apart unless energy is continually put in

Question 4

Macromolecules

Answer 4

-a function of living organisms:
Require energy to build and maintain
R complex and short lived
Look at anything large, complex highly organized-it energetically comes led,takes energy to maintain complex systems are unstable

Question 5

Examples of macromolecules

Answer 5

Carbohydrates-calorically rewarding part of cell membranes,cellular glues

Lipids-cell membranes fuel, padding,insulation(heat and electrical) steroid hormones

Nucleus acids-information molecules:DNA &RNA

Protein -can be structural (collagen)and functional (cell machines -enzymes ,transporters)

Question 6

Cell

Answer 6

Basic living unit

Many organisms are single cells

Question 7

Tissue

Answer 7

2 or more cells that are associated and carry out a common function

• going groups of similar cells,same embryological origin perform specialized function
• cells can be one organism or part of a tissue
• if in cellular organisms-1cell has to do everything

-some organisms live at just tissue level no organs ex.jellyfish and sponge

Question 8

A.tissue

4 types

Answer 8

1. epithelial -lining covering glands
2. connective-hold things together -major part of anatomy
3. muscle-contractile tissue
4. nerve-communication

Question 9

Organs-

Answer 9

2 or more tissue working together , have recognizable shapes and specific functions

-many have all 4 tissue types
Ex.worms live at this level :heart w/ open circularly system

Question 10

Systems

Answer 10

2 or more organs working together to do a job

-11 organ systems