Bio 9B: Friday, 10.2.09Title: Quiz – Classifying Life and Cell Theory

Homework: Pass Day in the Life of a Cell essay to the middle please Due Monday, October 5, 2009: Actively read the first two pages of Section 9.1 in your textbook (pages 221-

222 only).As you read, pay close attention to the strategies you are using to understand difficult information in the text.

AFTER YOU READ: Write a summary of the main points and ideas from these two pages. You can

summarize any way you wish. Write a short paragraph explaining the strategies you use to actively read the text

and to understand difficult information. Do Now:

Put Homework slip into 2-pocket folder Get out a pen/pencil and clear your desk for the quiz.

Objectives for Class:1. Demonstrate what you know about cells and domains/kingdoms of life on the Quiz.2. Identify strategies that help you to read challenging texts in science.3. Employ those strategies to learn about energy in cells from the Biology textbook.

Today’s Agenda: Quiz Start Homework

Objectives for Class:1. Show what you know about cells and domains/kingdoms of life on the Quiz.2. Identify strategies that help you to read challenging texts in science.3. Employ those strategies to learn about energy in cells from the Biology textbook.

Bio 9B: Monday, 10.5.09Title: Reading for Understanding in Biology

Homework: Pass 9.1 Homework to middle of rows Review core concepts from 8.1 and 9.1. Highlight the

information you do not understand and work to answer your own questions. Come to tomorrow’s class with questions you need answered.

Do Now: Extended Do Now: What are the strategies you use to read for

understanding?

Objectives for Class:1. Identify strategies that help you to read challenging texts in

science.2. Employ those strategies to learn about energy in cells from the

Biology textbook.

Today’s Agenda: Reading for Understanding Assignment

related to section 8.1 – Parts 1 and 2 Begin debrief of effective strategies

Objectives for Class:1. Identify strategies that help you to read challenging texts in science.2. Employ those strategies to learn about energy in cells from the Biology textbook.

Bio 9B: Tuesday, 10.6.09Title: Energy in Living Things

Homework: Burning Nuts Pre-lab

Do Now: Which reading strategies do you find most effective? Do you use them EVERY time you have to read at home?

Objectives for Class: Employ those strategies to learn about energy in cells from the Biology textbook.

Identify the organelle in the cell where the process of cell respiration occurs

Explain how the body uses food and oxygen to create ATP, Carbon Dioxide and Water

9B: Reading to Understand… wrap up

Difficulty understanding the process

Repetitive Vocabulary Sentence Structure Reading for the first

time Read silently is an

issue (need focused distraction)

Text marking-underlining, stars, highlight, Margin notes, post its Take notes on a separate sheet of paper Summarize or Paraphrase Changing the title of each section into a

question Defining words you don’t understand Create a purpose question Bullet points Read out Loud Text to text, text to self, text to world

(making connections)

What Makes it Difficult? Effective Strategies…

Cellular RespirationPurpose To break down food (glucose) and release

energy in a form that cells can use (ATP)

Where it Happens In the mitochondria of all eukaryotic cells

Objectives for Class: Identify the organelle in the cell where the process of cell respiration occurs Explain how the body uses food and oxygen to create ATP, Carbon Dioxide and Water

Bio 9B: Thursday, 10.8.09Title: Energy in Living Things

Homework: Cell Respiration open response question: DUE FRIDAY

Do Now: In your notebook:

a) Describe your reaction to Monday’s community meeting presentation.

b) How do you think that stuff (global warming, burning fossil fuels, finding alternative energy sources) relates to what we are studying in class right now?

Objectives for Class: Identify the organelle in the cell where the process of cell respiration

occurs Explain how the body uses food and oxygen to create ATP, Carbon

Dioxide and Water Compare and contrast the process of burning food to the process of

cell respiration in terms of the inputs and outputs of the reactions.

Double Block

Cellular Respiration: Summary Equation

Glucose +H2O+CO2O2 + heat+ ATP energy

Objectives for Class: Identify the organelle in the cell where the process of cell respiration occurs Explain how the body uses food and oxygen to create ATP, Carbon Dioxide and Water

Comes from the food we eat

We exhale this when we breathe out

We inhale this when we breathe in

Helps maintain our internal temperature…

Goes into the “pool” of water in our bodies…

This is the energy that our cells use to do stuff

Burning Nuts Demo – Part IHow is cell respiration like burning food?

1. Watch the demo carefully and record your observations in the first row of the chart

2. Work in Groups to complete the Part I Analysis

Objectives for Class: Identify the organelle in the cell where the process of cell respiration occurs Explain how the body uses food and oxygen to create ATP, Carbon Dioxide and Water Compare and contrast the process of burning food to the process of cell respiration in terms of the inputs and outputs of the

reactions.

Burning Nuts Part I DebriefComparing and contrasting cell respiration & burning food?

Cell Respiration:Glucose + O2 CO2 + H2O + ATP energy + heat

Burning Food: nut (carbs, oils, proteins) + O2 CO2 + H2O + ashes + light+ heat

Burning Fossil Fuels:gasoline/coal/oil + O2 CO2 + CO + H2O + heat

Objectives for Class: Identify the organelle in the cell where the process of cell respiration occurs Explain how the body uses food and oxygen to create ATP, Carbon Dioxide and Water Compare and contrast the process of burning food to the process of cell respiration in terms of the inputs and outputs of the

reactions.

Diagram of the Process

Occurs in Cytoplasm

Image: Copyright Cmassengale

3 Main Stages of Cell Respiration

Occurs in

Cytoplasm

Image: Copyright Cmassengale

Splits glucose in half and releases a small amount of ATP.

Finishes splitting glucose, releases CO2 and a little more ATP

Releases water and LOTS of ATP

Total ATP Produced = 36 ATP

What is ATP?

Objectives for Class: Explain how cells use ATP energy to power cellular activities and “do work” Explain how the body uses food and oxygen to create ATP, Carbon Dioxide and Water

Adenosine

Ribose

(sugar)

P P PA little bit of energy in this bond

A little more energy in this bond

A lot of energy in this bond

EnergyATPAdenosi

ne Tri-Phosphate

How do cells use ATP energy?It’s A High Energy Molecule Cells Use

to Do Work! Movement Transport of Materials Building large molecules like DNA and

Proteins

Objectives for Class: Explain how the body uses food and oxygen to create ATP, Carbon Dioxide and Water Explain how cells use ATP energy to power cellular activities and “do work”

ATP Analogy… Food (like glucose) is like:

The $5 bill you have in your pocket when you want

a candy bar from a vending machine. The $5 bill is still worth 5 bucks, but right now

it’s useless… It’s good for storage, but hard to use

immediately ATP is like:

The change you get when you cash it in… Now you have cash in your pocket that you can

put into the machine and spend on a candy bar

It’s bad for long-term storage, but it’s available whenever you need it

Objectives for Class: Explain how cells use ATP energy to power cellular activities and “do work”

The ATP – ADP Cycle:

Objectives for Class: Explain how cells use ATP energy to power cellular activities and “do work” Explain how ADP is “recharged” with phosphates to create ATP

ATP: Adenosine Tri-Phosphate

ADP: Adenosine Di-Phosphate

Energy released from Phosphate breaking off… Energy is stored in the bonds.

The phosphate is “recycled” & used to “recharge an ADP molecule to make ATP

Image: Copyright Cmassengale

Objectives for Class: Explain how cells use ATP energy to power cellular activities and “do work” Explain how ADP is “recharged” with phosphates to create ATP

It can be “recharged” by adding a 3rd phosphate to bring it back to FULL Power…

You can also think of ATP as a

rechargeable battery:Using ATP runs down the “battery” by taking away a phosphate.

Bio 9B: Friday, 10.9.09Title: Energy in Living Things

Homework: Pass Cell Respiration open response forward Study for the cell respiration quiz on Wednesday

Do Now: What do you think a calorie is?

Objectives for Class: Explain how the body uses food and oxygen to create

ATP, Carbon Dioxide and Water Compare and contrast the process of burning food to the

process of cell respiration in terms of the inputs and outputs of the reactions.

Calculate the calories in food.

Burning Nuts Demo – Part IIMeasuring the Calories in the Nut

1. Respond to the Pre-Lab Questions for Part II

2. Watch the Demo and Record Observations

3. Complete the Analysis for Part II

Objectives for Class: Explain how the body uses food and oxygen to create ATP, Carbon Dioxide and Water Compare and contrast the process of burning food to the process of cell respiration in terms of the inputs and outputs of the

reactions. Measure the calories in food.