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Cell Processes & Energy Respiration Chapter 2 Section 2
Respiration Cells break down simple food molecules, such as glucose, and release the energy they contain –Requires oxygen, O 2
Respiration Equation C 6 H 12 O 6 + 6 O 2 6 CO 2 + 6 H 2 O + energy
Respiration (Step 1) Glucose is broken down into small molecules in the cytoplasm –Only a little bit of energy is released
Respiration (Step 2) The mitochondria break down the small molecules in the presence of oxygen, O 2 –Lots of energy is released!!!
Photosynthesis vs. Respiration Can be thought of as opposite processes
Fermentation Allows cells to break down sugars without oxygen –Produces either… Alcohol Lactic Acid
Alcoholic Fermentation When yeast breaks down sugars without oxygen –Beer –Wine Gives off Carbon dioxide, CO 2 –Produces bubbles
Lactic Acid Fermentation Produced by muscle cells when they do not have enough O 2 –100m sprint Sore, wobbly legs
Warm ups: During photosynthesis, plants use carbon dioxide and give off ________. C6H12O6 is the chemical formula for ____________________. Photosynthesis.
Photosynthesis Section: 2.3.
Fermentation When cells do not have enough oxygen for respiration, they use a process called fermentation!
Takes place in the cells of both plant and animals
Respiration and Fermentation
Cellular Respiration Do animals breath?
Bellringer Why do we eat? What is needed in order to make a fire burn?
Energy for Life Chapter 4 Section 3 p
Respiration 7 th scienceCHAPTER 4-2. Monday 12/8/14 Agenda-respiration Finish photosynthesis handout, page 122, & job qualifications paragraph These were.
Cell Energy Chapter 4 Section 2.
Thursday January 22 nd 2015 QOD - Identify the following reactions: 1.C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + ATP 2.C 6 H 12 O 6 CO 2 + ATP + Alcohol.
Cell Energy Photosynthesis and Respiration. Photosynthesis Photosynthesis- process by which plants & certain other organisms use sunlight to make sugar.
Cell Energy. Energy from the sun Plants use the sun’s energy to make sugar. The sugar is called “glucose”. Glucose is stored in the plant and used by.
Cellular Respiration Chapter 2. What’s Cellular Respiration? Food provides energy Cells break down simple food molecules such as glucose and release.
Cellular Respiration Chapter 9.
4.2 Respiration 7.1.d Students know that mitochondria liberate energy for the work that cells do and that chloroplasts capture sunlight energy for photosynthesis.
Photosynthesis and Respiration
1. 2 Cellular Respiration Page 91 of your textbook Why does your body need food? To obtain energy rich sugar which supplies your body with glucose.
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