Take out your lab write ups. Looking Ahead Today – Review Kcal Lab, glycolysis, Kreb’s cycle and ETC. Tomorrow and Wed - fermentation Thursday – review.

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Presentation transcript:

Take out your lab write ups

Looking Ahead Today – Review Kcal Lab, glycolysis, Kreb’s cycle and ETC. Tomorrow and Wed - fermentation Thursday – review Friday – Test

Kcal Lab Questions?

Kcal Quiz What IS a calorie? How did you determine calories/kcals? What was your hypothesis? Your null hypothesis? Why compare kcal/g? Are there calories in the wooden tables? Explain.

Review Why have the ETC? What are the reactants and products? Why are these needed/made?

Review Why have the Kreb’s Cycle? What are the reactants and products? Why are these needed/made?

Review Why have Glycolysis? What are the reactants and products? Why are these needed/made?

Obj 16 What is the relationship between ‘metabolism’, cellular respiration, energy needs, endothermy and ectothermy? Endotherm – produces its own body heat Ectotherm – relies on environment and behavior for body heat Homeostasis?

Obj 16 About 50-80% of the calories you use go towards body heat Endothermy is expensive Endothermy = ‘high metabolism’ They/we eat a lot!!! Ectotherms?

Obj 16 VS.

Obj 16 Since endotherms aren’t ‘calorically constrained’ they don’t have to eat as often Can go a long time without eating Oxygen consumption is also much lower than ours Trade-offs between Endo and Ectotherms?

Homework Page 271 questions 1-11

What if… You’re working out? Your muscles’ ATP demand increases But ‘you’ can only supply finite oxygen… What happens?

Kcal Quiz What IS a calorie? How did you determine calories/kcals? What was your hypothesis? Your null hypothesis? Why compare kcal/g? Are there calories in the wooden tables? Explain.