1. Test Review Chapter 5-Photosynthesis and Cellular Respiration

2. 1. What is an autotroph?
An organism that makes their own organic molecules by using energy from inorganic molecules or the sun (photosynthesis)
***Sometimes called producers b/c they make their own food

3. 2. Give 5 examples of autotrophs.
Plants, algae, some protists, bacteria, trees, grass, etc.

4. 3. What is a heterotroph?
Organisms that get chemical energy for metabolism from autotrophs or other heterotrophs.
***Sometimes called consumers b/c they get food/energy from consuming others

5. 4. Give 5 examples of heterotrophs.
Humans, animals, fungus, some bacteria, fish, birds, etc.

6. 5. How do autotrophs get their energy?
photosynthesis

7. 6. How do heterotrophs get their energy?
From organic molecules
Through cellular respiration
From breaking down food molecules

8. 7. What is photosynthesis?
A process that takes place in autotrophs (producers) that converts light energy into chemical energy (plants capture energy and make organic molecules)

9. 8. Where does MOST energy on earth come from?
The sun

10. 9. What molecule stores energy in our cells?
ATP

11. 10. What does ATP stand for?
Adenosine Triphosphate

12. How does energy flow from the sun through the living world
How does energy flow from the sun through the living world? (List several ways)
Plants capture sunlight and produce carbohydrates (glucose)
Animals eat plants
Animals eat other animals that have eaten plants

13. How is energy required for life processes
How is energy required for life processes? (This means: How does our body need energy? To do what?)
growth and development
movement
transport of materials across the cell membrane

14. 13. What is cellular respiration?
The process used to harvest energy in organic compounds

15. 14. List the chemical equations for photosynthesis and cellular respiration and compare them.
6 CO2 + 6 H2O C6H12O6 + 6 O2
Cellular Respiration
Light
Glucose
(sugar)
C6H12O6 + 6O2 enzymes 6CO2 + 6H2O + energy
(Glucose) (ATP)

16. 15. Know what a balanced equation looks like
15. Know what a balanced equation looks like. Example: Balance this equation.
CH O2  CO H2O 2 2
C 1 C 1
H 4 H 2
O 2 O 3 4 4 4

17. 16. How does energy move through the food chain?
From autotrophs to heterotrophs

18. 17. What is an organic compound?
A compound that contains carbon and is made by living things
Ex- glucose