Cellular Respiration

Catalyst: What happens in photosynthesis? You may either use English, or scientific symbols.Please label which molecules are reactants, and which molecules are products.

Cells cannot use glucose directly. What do they need to turn it into to do work?

Write in complete sentences!

Don’t talk during the Catalyst!

Objectives

By the end of today, SWBAT…

Explain how photosynthesis is related to cellular respiration.

Describe how a ray of sunshine ultimately becomes the ATP that powers YOUR cells.

Let’s Take A Step Back…

Cells need energy to do work.They get their energy from something called ATP. Where is energy stored in ATP? How is it released? What happens to ATP when we break a bond?

Man, Mr. J, This Flowchart Rocks

Photosynthesis

Cellular Respiration

Glucose + Oxygen

Water + Carbon Dioxide

Energy (ATP)

Cellular Respiration

Remember Monday? Key Point #3: Cellular Respiration converts the chemical energy in glucose into chemical energy in ATP. CR occurs in the mitochondria Plant AND animal cells

Cellular Respiration

Key Point #1: Cellular respiration takes glucose (sugar) and oxygen and turns it into carbon dioxide, water, and ATP. Just like photosynthesis, there’s an equation for cellular respiration…C6H12O6 + 6O2 6CO2 + 6H2O+ ATP

REACTANTS PRODUCTS

What Do You Notice…?

Photosynthesis:

6CO2 + 6H2O + sun C6H12O6 + 6O2

Cellular respiration:

C6H12O6 + 6O2 6CO2 + 6H2O + ATP

Opposites!

Key Point #2: Photosynthesis and cellular respiration are opposites The reactants in photosynthesis are the products of cellular respiration.

The reactants in cellular respiration are the products of photosynthesis.

Except…

With one IMPORTANT DIFFERENCE…

Photosynthesis and cellular respiration use different types of energy

Man, Mr. J, This Flowchart Rocks

Photosynthesis

Cellular Respiration

Glucose + Oxygen

Water + Carbon Dioxide

Energy (ATP)

Who Does What?

Key Point #3: Plants do photosynthesis AND cellular respiration. Animals only do cellular respiration. Plants use sunlight to make glucose (photosynthesis), then use glucose to make ATP (cellular respiration).

Animals can only use glucose to make ATP.

So… if animals can’t make their own glucose… where do they get it from?

EATING FOOD!!!

Duh.

Cellular Process Jumble

We as a class are going to act out these two processes. We need to have 6 CO2 We need to have 6 O2 We need to have 6 H20 We need to have 1 reaction sign We need to have 1 glucose We need to have 1 Sun We need to have 1 ATP

Cellular Respiration Flow Charts Cut out the squares. Write the name (in English) of

each square under its chemical symbol.

Organize the squares into the equation for photosynthesis.

Balance it!!! Decorate the REACTANT squares in

warm colors (red, yellow, orange) Decorate the PRODUCT squares in

cool colors (blue, green, purple)

Mini-Lab

Question: What will happen if we try to grow basil in a room with almost no sunlight?

Independent Work Time

Work on the study guide for the quiz

If you finish early, study!

Key Point Wrap-Up

Key Point #1: Cellular respiration takes glucose (sugar) and oxygen and turns it into carbon dioxide C6H12O6 + 6O2 6CO2 + 6H2O + ATP

Key Point #2: Photosynthesis and cellular respiration are opposites

Key Point #3: Plants do photosynthesis AND cellular respiration. Animals only do cellular respiration.

Exit Questions

Which types of cells do cellular respiration?

Describe (briefly!) how energy in sunlight becomes ATP. Think: photosynthesis and cellular respiration!

Write in complete sentences!

Don’t talk during the Exit Question!