PPT for Edexcel International A level programme. Chapter 5A, tpoic: The importance of ATP

3. The importance of ATP
Chapter 5A

4. Lesson objective:
 Understand how photophosphorylation
of ATP requires energy and
that hydrolysis of ATP provides an
immediate supply of energy for
biological processes.

6. Autotrophs
 Photosynthesis is the process that converts solar
energy into chemical energy
 Autotrophs sustain themselves without eating
anything derived from other organisms
 Autotrophs are the producers of the biosphere,
producing organic molecules from CO2 and other
inorganic molecules
 Almost all plants are photoautotrophs, using the
energy of sunlight to make organic molecules from
H2O and CO2

7.  Photosynthesis occurs in plants,
algae, certain other protists, and
some prokaryotes

8. Heterotrophs
 Heterotrophs obtain their organic material from
other organisms
 Heterotrophs are the consumers of the biosphere
 Almost all heterotrophs, including humans, depend
on photoautotrophs for food and O2

9. ATP(Adenosine tri phosphate)

11. ATP to ADP

13. Electron transport chain (ETC)