Week 8 Notes Respiration

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Presentation transcript:

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

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)

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.

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__.

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__

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

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)

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)

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.

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__