Cellular Energetics-Cellular Energy

What is energy?

Tags

NGSS.HS-PS3-2

What are processes we have learned about that require cell energy? Explain

Tags

NGSS.HS-LS1-5

NGSS.HS-LS1-7

NGSS.HS-LS2-5

Focus of cellular energetics

• What energy is

• How it’s used by cells

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

NGSS.HS-LS2-5

Metabolic Pathway

Tags

NGSS.HS-LS1-6

NGSS.HS-LS1-7

NGSS.HS-LS2-3

NGSS.HS-LS2-5

3 common types of cell energy

• ATP

• ADP

• AMP

Tags

NGSS.HS-LS1-7

First law of thermodynamics

• This is the law of conservation of energy: Universe contains a constant amount of energy

• Energy is not created or destroyed

• KE>PE>KE>PE>KE the same amount of energy is passed back and forth

Tags

NGSS.HS-PS3-2

Second law of thermodynamics

• States that the transformation of energy is tied to an increase of disorder in the universe

• Energy transfer is not 100% efficient

• The amount of energy available to do work decreases with each change

Tags

NGSS.HS-PS3-4

Biological example-Muscle contraction

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Chemical Reactions and Metabolic Pathways

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

NGSS.HS-PS1-2

NGSS.HS-PS1-4

Metabolism

• Metabolism-Set of chemical reactions that converts molecules into other molecules while transferring energy

• Metabolism-Two branches

Tags

NGSS.HS-LS1-5

NGSS.HS-LS1-7