Introduction to Cellular Respiration

Introduction to Cellular Respiration

By Angela Thornsberry

Metabolism

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The chemical reactions in the body's cells that change food into energy.

Definition:

All living things carry out cellular respiration, including bacteria. ​

​Who needs CR?

Cellular Respiration breaks down food like glucose to produce energy in the form of ATP.

What is Cellular Respiration?

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Multiple Choice

The purpose of cellular respiration is to

• make water

• make glucose

• make ATP

• make CO2

Multiple Choice

Do all organisms carry out a form of cellular respiration?

• Yes

• No

• Maybe

Multiple Choice

What is metabolism?

• Converting energy into food

• Converting food into energy

• Converting light into energy

Reactants of Cellular Resp.

​What inputs are needed for this reaction?

We breath in air to obtain Oxygen (O₂). We also consume​ food which is broken down in the digestive system into small molecules that can enter cells. Glucose is the molecule we will focus on.

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O₂ + Glucose --> _______​

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Products of Cellular Resp.

​What outputs are made in the reaction?

​ATP is the main product of Cellular Respiration. Cells can't use glucose or heat to fuel cellular and body processes. They need an energy source they recognize and know how to use, ATP. CO₂ and H₂O are waste products also produced.​

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O₂ + Glucose --> ATP + CO2 + H₂0

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​Formula for C.R.

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​Cellular respiration occurs in mitochondria of cells, the

powerhouse.

Multiple Select

Select the reactants of cellular respiration.

• CO₂

• Glucose

• O₂

• H₂O

Multiple Select

Select the products of cellular respiration

• H₂O

• ATP

• Glucose

• CO₂

Glucose's chemical formula is C₆H₁₂O₆

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​Glucose is a basic unit of carbohydrates.

Examples of carbohydrates include table sugar and starch.​

Multiple Choice

What is the correct equation for cellular respiration?

• CO₂ + C₆H₁₂O₆ -> O₂ + H₂O + ATP

• CO₂ + ATP -> O₂ + H₂O + C₆H₁₂O₆

• O₂ + C₆H₁₂O₆ -> CO₂ + H₂O + ATP

Short for adenosine triphosphate, a nucleic acid with 3 phosphate groups.

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A usable energy source for cells.

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Energy is stored in the bonds of the compound.​

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​ATP = Energy

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Multiple Choice

ATP equals

• energy

• work

• force

• tyranny

Multiple Choice

What is the function of ATP in living things?

• provides structure in the nucleus

• provides energy for cells

• stores genetic information