monday, october 16compatibility_mode].pdfoverview of photosynthesis • the reactions of...

Monday, October 16

In the next open box on your

extra page on p. 62, answer

the following questions:What is the name of the

energy source used for

active transport? Which

part of the molecule

stores the energy?

How Energy Cycles

A look at

Photosynthesis

&

Cellular Respiration

CO2 & H2O

O2 & Food

Cell Respiration

Photosynthesis

Photosynthesis

• The process by which

light energy is absorbed,

in plants, and converted

to the chemical energy

of glucose - C6H12O6

Photosynthesis

•The following is the chemical reaction of Photosynthesis:

6CO2 + 6H2O �� C6H12O6 + 6O2

6 carbon + 6 waters �� 1 Glucose + 6 oxygen

dioxides

Sunlight

What is Needed What is Produced

Cellular Respiration• The process whereby chemical

energy stored in the form of

glucose (simple sugar –

C6H12O6) is converted into the

chemical energy of ATP

(adenosine triphosphate). This

process occurs in the

Mitochondria of the cell

Cellular Respiration• Glucose molecules are the

fuel for cellular respiration.

• The chemical reaction is the

following:

stuff needed �� stuff given off

C6H12O6 + 6O2 �� 6CO2 + 6H2O + 36ATP

1 Glucose+ 6 oxygen��6 carbon+6 water+energy

dioxides

OVERVIEW OF

PHOTOSYNTHESIS• Where does photosynthesis take

place?

– In the leaves of plants

– Cells contains chloroplasts(organelles that capture sunlight)

– The chlorophyll molecule within the chloroplast is actually responsible for capturing light energy.

OVERVIEW OF

PHOTOSYNTHESIS• The reactions of photosynthesis

take place in two main stages:

1. Light Reaction (Light Dependent Reaction)

• capture sunlight energy

• Splits H2O to release O2

2. Calvin Cycle (Light Independent Reaction)

• use energy from light reaction to fixCO2 into carbohydrates (C6H12O6)

STOP! REFLECTION

• For the next 5 minutes, answer the

question in the box at the bottom of

your notes.

• Write 3-4 level 3 questions on the

left side of the page

3 Steps of Cellular

Respiration (Aerobic)

1. Glycolysis

2. Krebs Cycle (Citric Acid Cycle)

3. Electron Transport Chain (System)

Step 1 – Glycolysis

• Each Glucose molecule is broken down & produces 2 ATP (oxygen is not required)

• Occurs in the cytoplasm

These are

the steps of

Glycolysis.

(Be sure to

know them

for the next

test)

Just

Kidding!!!

Step 2 – Krebs Cycle

•2 more ATP are

formed

(oxygen is required)

• CO2 is given off

Krebbs Krebbs Krebbs Krebbs

CycleCycleCycleCycle

Step 3Electron Transport Chain

• Oxygen is required to

ultimately form 32 ATP

The End Product• For every glucose molecule

that goes through cellular

respiration, ~36 ATP are

produced

1 C6H12O6 = 36 ATP

Fermentation

Fermentation: a cell process in which

glucose is broken down in the absence

of oxygen. 2 ATP are produced.

• The two most common forms of

fermentation are:

1. alcoholic fermentation (yeast and

bacteria)

2. Lactic acid fermentation (animal cells)

Alcohol Fermentation

Lactic Acid Fermentation

Tuesday, October 17



the following questions:Explain how the light

independent step of

photosynthesis depends

on the light dependent

step.

Tuesday, Oct. 17

• PREDICT: What will happen when

I blow bubbles through the straw?

• OBSERVE

• EXPLAIN: you have 2 minutes to

discuss with your table partner

what happened and why

Photosynthesis Cellular Respiration

Function

Location

Reactants

Products

Chemical

Equation

Compare Photosynthesis and Cellular Respiration


Function Energy Storage Energy Release

Location

Reactants

Products

Chemical

Equation




Location Chloroplasts Mitochondria

Reactants

Products

Chemical

Equation





Reactants CO2 and H2O C6H12O6 and O2

Products

Chemical

Equation






Products C6H12O6 and O2 CO2 and H2O

Chemical

Equation


Tuesday, October 17



the following questions:Explain how the light

independent step of

photosynthesis depends

on the light dependent

step.





Products C6H12O6 and O2 CO2 and H2O

Chemical

Equation

6CO2 + 6H2O + light

→ C6H12O6 + 6O2

C6H12O6 + 6O2

→ 6CO2 + 6H2O +

Energy


Tuesday, Oct. 17

• PREDICT: What will happen when

I blow bubbles through the straw?

• OBSERVE

• EXPLAIN: you have 2 minutes to

discuss with your table partner

what happened and why

EXIT TICKET

• Complete the exit ticket, you may

use your notes. Put it in the basket

when you are finished.

Wednesday, October 17


extra page on p. 62, answer the

following questions:What did the

Bromothymol Blue

indicate? What do you

expect to see in the test

tube in the light? In the

dark?

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