1. KREBS CYCLE & ELECTRON TRANSPORT Chapter 9-2 http://www.clickatutor.com/mitochondria.jpg http://www.therunningdoctor.com/runinjuries.htm

2. CARBOHYDRATES SUPPLY ENERGY Images from: http://www.miranda.com/library.en/Images/Pictures/girls-runners.jpg http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM2.html Cells burn GLUCOSE for their energy needs Remember !

3. EXERCISE and ENERGY ________term exercise like 50 yd dash Cells keep only enough ATP for a few Seconds of activity. Once this ATP is used up muscle cells can use _____________ fermentation for about ______________ of energy. SHORT LACTIC ACID http://www.therunningdoctor.com/runinjuries.htm 90 seconds

4. EXERCISE and ENERGY Once race is over, _______________ must be broken down using oxygen. A quick sprint builds up an OXYGEN debt that must be repaid by ______________________ heavy breathing Image from: http://www.miranda.com/library.en/Images/Pictures/girls-runners.jpg Lactic acid

5. LONG TERM EXERCISE and ENERGY For exercise longer than 90 seconds _____________________ is the only way to make enough ATP. Cellular respiration gets ______________ from glucose than fermentation. Well conditioned athletes must pace themselves during a long race. more energy Cellular respiration

6. Animal cells store GLUCOSE as _____________ to use later. Image from: http://www.msu.edu/course/lbs/145/smith/s02/graphics/campbell_5.6.gif GLYCOGEN REMEMBER What happens in a long race when the body’s glucose all is used up?

7. EXERCISE and ENERGY (LONGER term energy) ________________ store glucose as ________________ which can be broken down into glucose to supply energy for_______________ of activity. MUSCLES 15-20 minutes glycogen

8. DID YOU EVER CARBO LOAD? Eating a high carbohydrate meal before a big game or race fills up your _____________ reserves in your muscles GLYCOGEN http://www.nutritionclipart.com/details/illustration/179_fat_woman_eating_spaghetti_at_a_table.html

9. EXERCISE and ENERGY (LONGER term energy) After glycogen stores are used up the body begins to break down ________ That’s why aerobic exercise must continue for longer than 20 minutes if you want to lose weight! FAT Image from: http://blackmovie.us/movie/Fat.Albert/fat.albert.movie.jpg