1. Biology Notes Cell Energy Part 2 Pages 100-102

2. Standards
4.3
____ Connect the role of adenosine triphosphate (ATP) to energy transfers within a cell
____ Differentiate among the various forms of energy and recognize that they can be transformed from one form to others
4.7

3. Essential Question 1.
How is energy acquired and used
by organisms?

4. I. Energy All life on Earth depends on ________.
What types of activities do we need energy for?
What types of activities does the cell need energy for?
energy
respond, grow, develop, homeostasis, etc.
respond, grow, develop, homeostasis, etc.

5. What are the different forms of energy?
kinetic, potential, chemical (food),
mechanical, electrical, heat, light (solar),
nuclear, etc.

6. Autotrophs = organisms that obtain _______ from the sun to make their own ______
e.g.
energy
food
plants, ferns, shrubs, trees

7. autotrophs have the ability to transform ______ energy into _________ energy (a.k.a. _____)
solar
chemical
food

8. Heterotrophs = organisms that obtain energy by consuming __________
e.g.
heterotrophs are dependent on ___________ or plants to get their _______ because they cannot make their own _____
autotrophs
animals, people, decomposers
energy
autotrophs
food

9. II. ATP & ADP
Energy is stored inside of _____. High energy foods contain ______________ which store the greatest amount of _______. Carbohydrates, however, cannot be broken down in the cell to get the _______ very fast. The cell, therefore, must have another storage unit for the ______.
food
carbohydrates
energy
energy
energy

10. Why do carbohydrates store the greatest amount of energy?
They have the greatest number of bonds.
Remember, energy is stored in the
chemical bonds between elements!

11. Adenosine Triphosphate (ATP) = the principle chemical __________ that stores energy in the _____
can be broken down to release energy very _________
can also move very quickly from cell to _____ throughout the _____
holds less _______ than ______________
compound
cell
quickly
cell
body
energy
carbohydrates

12. PARTS:
Ribose – a ____ carbon _______
2. Adenine – a ___________ of RNA / DNA
3. Phosphate – has ____ phosphate groups 5
sugar
nucleotide 3

14. DIAGRAM:

16. energy is stored in _________ the bonds of the 2nd and ____ phosphate groups
to release this energy, the bond must be ________
when the bond is broken, there are only ____ attached phosphate groups causing ______ to form _____
between
3rd
broken 2
ATP
ADP

17. Adenosine Diphosphate (ADP) = the principle chemical __________ formed when _____ is broken down
PARTS:
1. Ribose – a ____ carbon sugar
2. Adenine – a ___________ of RNA / DNA
3. Phosphate – has only __ phosphate groups
compound
ATP 5
nucleotide 2

18. DIAGRAM:

19. DIAGRAM OF ENERGY EXCHANGE: ______ to ______
ATP
ADP

20. Overall Energy Pathway: