4.2 overview of photosynthesis set up cornell notes on pg. 51 topic: 4.4/4.5 intro to cellular...

4.2 Overview of Photosynthesis•Set up Cornell Notes on pg. 51

•Topic: 4.4/4.5 Intro to Cellular Respiration

•Essential Question:

1.What is the difference between aerobic and anaerobic processes?

2.What processes in cellular respiration are aerobic? Anaerobic?

2.1 Atoms, Ions, and Molecules

4.4 Intro to Cellular Respiration

1. What is the difference between aerobic and anaerobic processes?

2. What processes in cellular respiration are aerobic? Anaerobic?

KEY CONCEPT The overall process of cellular respiration converts sugar into ATP using oxygen.

4.4 Overview of Cellular Respiration

KEY CONCEPT The overall process of cellular respiration converts sugar into ATP using oxygen.


Discussion Question #1

Try and hold your breath for as long as you can (no cheating).

How did you feel as you were holding your breath?

Why do you think you felt this way?

If you were to run a few miles, what would happen to your breathing?

Pg. 50


Discussion Question # 2

How does your body use oxygen?

•Oxygen helps your body break down chemical energy that is stored in sugars and other carbon based molecules.

•The energy produced is ATP

ATP


Compare the reactants and products. What do you notice?


• Plants use photosynthesis to make their own food• Animals eats other organisms as food

– Food is not the direct source of energy- Instead we break down molecules from food to produce ATP- Plants break down stored glucose to produce ATP

• Cellular respiration releases chemical energy from sugars (produced by photosynthesis) and other carbon-based molecules to make ATP when oxygen is present

4.4 Overview of Cellular RespirationTwo “Stages”•Light Dependent- ETC-Fuels Light Independent •Light Independent- Calvin Cycle- Makes Glucose

Two “Stages”•Stage I- Kreb’s Cycle- Fuels Stage II•Stage II- ETC- Makes lots of ATP!


• Cellular respiration is aerobic, or requires oxygen.

O2

• Cellular respiration releases chemical energy from glucose (produced by photosynthesis) and other carbon-based molecules to make ATP when oxygen is present


• Cellular respiration takes place in mitochondria “the powerhouse of the cell”


• Glycolysis must take place first. It happens in the cell’s cytoplasm

– anaerobic process (does not require oxygen)– splits glucose (from photosynthesis) into two three-

carbon molecules called pyruvates - these will be broken down in the mito to make many more ATP

– produces two ATP molecules

ATP

2 pyruvates“Sweet Split”

Draw on P. 51


There are two main parts to a mitochondria:1. Matrix- area inside the inner membrane- Kreb’s

Cycle2. Inner membrane- Electron Transport

4.4 Overview of Cellular Respiration1

2

4

3

1.

2.

3. Takes place in ___________

4. 5.

7. 6.

8. Takes place in the _____________

Glycolysis:

4.4 Overview of Cellular Respiration1

2

4

3

1. Mitochondria

2. 2 Pyruvates

3. Kreb’s Cycle Takes place in the Matrix

4. 6 CO2

5. Energy

7. 6 H2O 6. 6 O2

ATP

ATP

Energy from Glycolysis

Glycolysis:Glucose is broken down into 2 3-carbon molecules

8. Electron Transport Chain Takes place in the Inner Membrane


ATP and Cellular Respiration (4m12s)


• The equation for the overall process is:

C6H12O6 + 6O2 6CO2 + 6H2O + ATP

• The reactants in photosynthesis are the same as the products of cellular respiration.


…..Products…..

…..Reactants…..

Cellular Respiration

Pg. 50 in INB Pg. 115 in book

1. 2. 3. 4.

Stage 1 Stage 2


• The Krebs cycle takes place inthe mitochondrial matrix– 2 pyruvates enter cellular

respiration1. Pyruvates are broken

down and a small amount of ATP (x2) is made during the Kreb’s Cycle

2. ATP transfers energy-carrying molecules to Stage II: The Electron Transport Chain

– releases carbon dioxide as waste

6H O2

6CO 2

6O 2

mitochondrionmitochondrion

matrix (area enclosedby inner membrane)

inner membrane

ATP

ATP

energy

energy from glycolysis

1

2

4

3

and

and

and

Krebs Cycle

Stage I


6H O2

6CO 2

6O 2

mitochondrionmitochondrion

matrix (area enclosedby inner membrane)

inner membrane

ATP

ATP

energy

energy from glycolysis

1

2

4

3

and

and

and

• The electron transport chain produces a large amount of ATP and takes place in the inner membrane

3. Energy from Stage I transferred to proteins in the inner membrane

4. oxygen enters process and is used to make H2O–A large number of ATP (x up to 34) molecules are produced

– water and heat are released

Electron Transport

Stage II


…..Products…..

…..Reactants…..

Cellular RespirationSugar(2 pyruvates)

The Kreb’s Cycle breaks down pyruvates into ATP (2)

CO2

Energy is transferred to the E.T. C.

E.T.C.: Energy is transferred to proteins in the inner membrane of the mito.

A large # of ATP is made (34). O2 is used to make H2O

O2

H2O Heat

Stage 2Stage 1


Cellular Respiration

• Up to 38 ATP molecules are made from the breakdown of one glucose molecule• 2 from glycolysis• 2 from Kreb’s • Up to 34 from Electron Transport

38


Video

• Glycolysis and Cellular Respiration (1m53s)

4.2 Overview of Photosynthesis•Set up Cornell Notes on pg. 53

•Topic: Photosynthesis & Cellular Respiration

•Essential Question:

1. Describe the relationship between cellular respiration and photosynthesis in a double-bubble map.

2.1 Atoms, Ions, and Molecules

1. Describe the relationship between cellular respiration and photosynthesis in a double-bubble map.

Photosynthesis & Cellular Respiration


Video

• Cellular Respiration Overview (4m 28s)


PhotosynthesisCellular

Respiration

Pg. 52 in INB

EQ: Please create a Double-bubble map comparing and contrasting Photosynthesis and Cellular Respiration.

Include: Reactants/Products, organisms that undergo each, Organelles, chemical equation, etc…



Respiration

White board:



Respiration

Reactants•Light Energy•CO2•H2O

Products•Glucose (sugar)•O2

Reactants•Glucose•O2

Products•CO2•H2O•Heat

MitochondriaChloroplast

Energy ATP

Chemical Reactions

Plants

Animals

ATP

Calvin Cycle

Kreb’s Cycle

E.T.C

2 Main Stages

4.4 Overview of Cellular RespirationTwo “Stages”•Light Dependent- ETC-Fuels Light Independent •Light Independent- Calvin Cycle- Makes Glucose

Two “Stages”•Stage I- Kreb’s Cycle- Fuels Stage II•Stage II- ETC- Makes lots of ATP!


P. 53

Labeling 1-9

Photosynthesis and Cellular Respiration Cycle Diagram


• Life on Earth is solar powered, and energy makes a one-way trip through an ecosystem

• Chemicals, however, are recycled• The CO2 and H2O released by cellular respiration

are converted through photosynthesis to glucose and O2, which are then used again in respiration

CO2 and H2O

Photosynthesis

Glucose and O2

Cellular respiration


1.

3.

4. 8.

9.

5.

7.

2.

6.

On pg. 53- Label each part of this diagram

4.4 Overview of Cellular Respiration1. Photosynthesis

3. C6H12O6

4. O28. H2O

9. CO2

5. Cellular Respiration

7. ATP

2. Chloroplast

6. Mitochondria


• Please make a diagram showing the relationship between Photosynthesis and Cellular Respiration

Pg. 53 in INB

• Title of Process• Organelle• Organism

Products Products

• Title of Process• Organelle• Organism

4.2 overview of photosynthesis set up cornell notes on pg. 51 topic: 4.4/4.5 intro to cellular...

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