Chapter 9 Time Line

• Laboratory– Period 1: Tuesday December 9th – Period 4: Tuesday December 9th – Period 7: Wednesday December 9th

• Quiz – Period 1 : Wednesday December 10th – Period 4: Thursday December 11th – Period 7: Friday December 12th

• Test / Homework is due– Period 1 : Friday December 12th – Period 4: Monday December 15th – Period 7: Tuesday December 16th

Homework

• Tell the story of a carbon atom as it travels through Respiration, is used in photosynthesis and returns to respiration.

• Your story should be– Very detailed– Explain the processes– It will be more than a few sentences!!!

6.1 – Energy for CellsATP – adenosine triphosphate

Free Energy = energy available to do work.endergonic reactions = reactions that absorb energyexergonic reactions = reactions that release energy

What is ATP?

Energy Relationships

Chapter 6 Quiz1. ____ uses the high-energy electrons form the Krebs Cycle to convert ADP to

ATP

2. During the ____ , pyruvic acid is broken down into carbon dioxide in a

series of energy extracting reactions.

3. _____ respiration requires Oxygen.

4. _____ respiration does not require oxygen

5. _____ is the combination of glycolysis and another pathway to release

energy in the absence of oxygen.

6. _____ is the main electron carrier in respiration.

7. _____ respiration is the process that releases energy by breaking down

glucose in the presents of oxygen.

8. Respiration begins with a pathway called ______.

9. A _____ is the amount of energy needed to raise temperature of 1 gram of

water 1 degree Celsius.

10. The end product of glycolysis is 2 _________

Quiz Answers

1. Electron Transport Chain or ETC2. Krebs Cycle3. Aerobic4. Anaerobic5. Fermentation6. NAD7. Cellular Respiration8. Glycolysis9. Calorie10. Pyruvic Acid

Autotrophs – Produces its own Energy / Food Heterotrophs – get energy from the food they consume

Jan Van Helmont = Plants gained mass from waterJoseph Priestley = 0xygen released by plants ( candle

experiment)Jan Ingenhousz = Oxygen was released during the day / Light

Plant produced bubbles.Julius Robert Mayer – Light energy was converted to chemical energy.Melvin Calvin = Calvin Cycle – Path of carbon to form

glucose

Energy LaboratoryReminders:1. The tip of the flame is the hottest. Make sure the test tube is relatively close to

the tip of the flame.2. Make sure you use the tip of the flame from the match to light the nut. 3. 1ml of water = 1 gram

When you find the calories for your peanut look at the weight.if its .5 (half) a gram then you need to divide it by the calories to find out the total calories per gram of nut.

Example:1. If my peanut is .5g then the calories from that nut is only half of what a full gram

would give me therefore the calories/g would be more than the experimental value.

If the calories from the experiment = 100c Then the calories per gram = 200c/g100c / .5g = 200 c/g

2. If my peanut is 1.5g then the calories from that peanut is more than what a full gram would give me therefore the calories/g would be less than the experimental valueIf the calories form the experiment =100c Then the calories per gram = 66c/g

100c / 1.5g = 66.66 c/g