1. Week 8 Notes Respiration
CH.2, Section2
Page 49 – 53

2. I. WHAT IS RESPIRATION?
a. __FOOD__ you eat __TURNS__ into __GLUCOSE__.
b. __RESPIRATION__ is the process by which __CELLS__ obtain energy from glucose.
c. Cells break down simple __FOOD__ molecules such as __SUGAR__ and release the __ENERGY__ they contain.
d. __ALL__ living things carry out __RESPIRATION__ continuously.
Brain Pop: Respiration System (3:16)

3. A. Storing and Releasing Energy
a. When you __EAT__ energy is __STORED__ inside the body.
b. When __CELLS__ need energy they __BREAKDOWN__ the stored energy.

4. B. Breathing and Respiration
a. __RESPIRATION__ has __2__ meanings
b. __RESPIRATION__ is __MOVING__ air in and __OUT__ of your lungs.
c. __RESPIRATION PROCESS__ takes place inside __CELLS__, also called __CELLULAR RESPIRATION__.

5. C. The Two Stages of Respiration
a. Like __PHOTOSYNTHESIS__, respiration is a __2-STAGE__ process. b. 1st stage takes place in the __CYTOPLASM__ of the oransism’s __CELLS__ c. Molecules of __GLUCOSE__ are broken down into __SMALLER__ molecules. d. 1st stage does __NOT__ not involve __OXYGEN__

6. The Two Stages of Respiration
e. 2nd stage takes place in the __MITOCHONDRIA__
f. The __SMALL__ molecules are broken down into even __SMALLER__ molecules.
g. 2nd stage does __REQUIRE__ oxygen

7. D. The Respiration Process
a. Raw materials of respiration: __SUGAR__ and __OXYGEN__
b. Products of respirations: __CARBON DIOXIDE__, __WATER__, and __ENERGY__
Brain Pop: Cellular Respiration (3:20)

8. E. Comparing Photosynthesis and Respiration
a. __PHOTOSYNTHESIS__ and __RESPIRATION__ can be considered __OPPOSITE__ processes.
These __2__ processes form a __CYCLE__ that keeps the levels of __OXYGEN__ and __CARBON DIOXIDE__ equal.
Brian Pop; Carbon Cycle (2:32)

9. II. FERMENTATION
a. __FERMENTATION__ is an energy-releasing process that does __NOT__ require __OXYGEN__
A. Alcoholic Fermentation
a. Alcoholic fermentation is when __YEAST__ and other __SINGLE-CELLED__ organisms break down __SUGAR__
b. __CARBON DIOXIDE__ from __ALCOHOLIC__ fermentation helps __RAISE__ bread.

10. B. Lactic Acid Fermentation
a. __LACTIC ACID__ fermentation takes place in your __BODY__
b. Lack of __OXYGEN__ causes __FERMENTATION__ to take place.
c. __LACTIC ACID__ builds up, you feel a __PAINFUL__ sensation in your __MUSCLES__
d. Your __MUSCLES__ feel __WEAK__ and __SORE__