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Energy and Cellular Respiration

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Jenna Barbary

on 31 October 2017

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Transcript of Energy and Cellular Respiration

Essential Questions for this Prezi
What are the different types of energy?

How is food converted into energy for your cells?

What is the difference between aerobic and anaerobic respiration?

How is cellular respiration related to respiration in your lungs?
What is energy?
Energy can be thought of as a property or characteristic of things that can make something happen.
Energy can be transformed from one type to another!

light energy ----> chemical energy ----> kinetic energy

Energy is not created or destroyed!

Every energy transformation is inefficient - some of the energy is converted to heat
The Cycle of Energy
How do organisms acquire and use energy?
Cellular Respiration - Harvesting ATP from Glucose
Aerobic VS Anaerobic Respiration
Calories, energy, food
Large organic food molecules such as starch and fats are digested to small organic molecules such as glucose and fatty acids.

Cellular respiration tranfers energy in organic molecules to ATP.

Calorie - measurement of energy
Energy and Cellular Respiration
I promise it's not as bad as it looks.
This is a complex process! Use all your resources wisely...
Cellular respiration information can be found on pages 92-103 of your textbook!
Potential energy - "stored" energy - based on location

Kinetic energy - energy of motion - moving your leg, movement within a cell, muscle movement

Chemical energy - special type of potential energy stored in bonds

Heat - kinetic energy in the random motion of molecules or particles
What do you know about energy?
Take a minute and try to define the following types of energy in your notes:

Potential energy, kinetic energy, chemical energy, heat energy
Different types of organisms get energy from different sources:
autotrophs - produce their own food, usually from sunlight

heterotrophs - cannot produce their own food, have to eat to gain energy

ALL organisms break glucose down into ATP using cellular respiration, then ATP provides energy for biological processes
ATP: adenosine triphosphate
This video is an overview of the process of cellular respiration. Try to figure out as much of the process as you can!
What are the steps of Cellular Respiration?
From what you learned in the video, take a minute and try to isolate the major stages (steps) of cellular respiration.
What is the overall process of Cellular Respiration?
or Citric Acid Cycle
3 Major stages: Glycolysis, Citric Acid (or Krebs) Cycle, and the Electron Transport Chain
Produces about 29 total ATP molecules for each glucose molecule that goes in!
Aerobic - with oxygen - cells require oxygen as the final electron acceptor at the end of the electron transport chain... if oxygen is not available, cells use...

Anaerobic - without oxygen - glycolysis goes directly into fermentation
Full transcript