cell respiration

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Monday 17 October Topic: Cellular Respiration DO NOW: Brainstorm everything that you can about energy. Think about things such as where it comes from, how it becomes available, how does it change into other forms, what is it used for, what types there are, etc. HW: 8-1 Reading for Understanding (complete classwork from Friday you will get your sheet back and a copy of the reading)

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Page 1: Cell respiration

Monday 17 October

Topic: Cellular Respiration

DO NOW:

• Brainstorm everything that you can about energy.

Think about things such as where it comes from, how it

becomes available, how does it change into other forms,

what is it used for, what types there are, etc.

HW:

• 8-1 Reading for Understanding (complete classwork

from Friday – you will get your sheet back and a copy

of the reading)

Page 2: Cell respiration

Objective

By the end of this class, you will be able

to write the chemical equation for cell

respiration and identify its reactants and

products.

Agenda

Quick announcements

Notes on cell respiration

Page 3: Cell respiration

Why do we need energy?

To do work

To survive

To power ourselves

To make heat

To maintain homeostasis

OBJECTIVE – By the end of this class, you will be able to write the chemical equation for cell

respiration and identify its reactants and products.

Page 4: Cell respiration

In what form is energy available?

Kinetic Energy

Solar Energy

Potential Energy

Chemical Energy

Magnetic Energy

OBJECTIVE – By the end of this class, you will be able to write the chemical equation for cell

respiration and identify its reactants and products.

Page 5: Cell respiration

How does our body convert this

energy? WE MUST USE CHEMICAL ENERGY(ATP)

Adenosine tri-phopshate(we don’t eat ATP)

We make it by breathing and eating

Mitochondria converts reactants into usable

ATP (breathing in oxygen and eating

glucose)

OBJECTIVE – By the end of this class, you will be able to write the chemical equation for cell

respiration and identify its reactants and products.

Page 6: Cell respiration

Where do the waste products go?

There are 2 waste products( carbon

dioxide and water)

To exhale

Sweating, urination, and exhaling

OBJECTIVE – By the end of this class, you will be able to write the chemical equation for cell

respiration and identify its reactants and products.

Page 7: Cell respiration

THE FORMULA!!!

O2 + C6H12O6 CO2 + H2O + ATP + heat

OBJECTIVE – By the end of this class, you will be able to write the chemical equation for cell

respiration and identify its reactants and products.

Page 8: Cell respiration

Tuesday 18 October

Topic: Exercise, Cell Respiration, and

your body

DO NOW:

• Pick up a packet from the kidney table and complete the

front page (“pre-lab”). You should fill in the blanks and

write hypotheses for how exercise affects the body.

• Andre will come around and collect the 8-1 reading hw

quickly and quietly

HW:

• Reflections and conclusions questions

Page 9: Cell respiration

Objective

Explain how the chemical equation for

cell respiration relates to breathing, and

why we breathe harder during exercise.

Agenda

Protocol for outdoor activity

How to measure a pulse

Outside activity!

Page 10: Cell respiration

Pulse & Breathing rate

Everyone focus for a few seconds and

note if your breathing is slow, medium, or

fast (compared to how you normally

breathe)

Next, find your pulse on your neck or

your wrist and we will measure it for 15

seconds

◦ Multiply this number by 4 to get beats/min

(bpm)

Page 11: Cell respiration

Before going outside…

You only need to bring your lab and a pencil

and can leave everything else here

We go out the back stairs, out the door, and

around to the crosswalk

Line up with your partner along the edge of

the basketball court by the red stairs

Once everyone completes the activity, listen

for me to say “Now” and “End” which will be

the timed minute for pulse

Swap with your partner

Page 12: Cell respiration

Now…

Take a seat, chill, start quietly writing your

answers

Page 13: Cell respiration

Wednesday 19 October

Topic: Measuring energy in food

DO NOW:

• Pick up a lab packet from the kidney table and

complete the pre-lab assignment

HW:

• Post-lab analysis questions

Page 14: Cell respiration

Objective

Identify 3 similarities and 2 differences

between cell respiration and burning food.

Calculate the number of calories in a Frito

Agenda

Lab protocol

Demo of burning food

Labs part 1 & II

Page 15: Cell respiration

Lab Protocol

All bags/excess paper/etc must be off lab tables

Any hair long enough is to be tied back

During the burning portion, absolutely no

getting up for anything (wait until after this

portion of the lab is complete)

Nothing is going near the flame!

Identify 3 similarities and 2 differences between cell respiration and burning food.

Calculate the number of calories in a Frito

Page 16: Cell respiration

Friday 21 October

Topic: Cell Respiration Review & Quiz

DO NOW:

• Get a clicker from the kidney table

• Take out your notes on cell respiration

HW:

• Read 38-1 and take notes in your notebook

• Think of a food/meal that contains carbohydrates, lipids

(fats), and proteins. Write it down after your reading

notes!

Page 17: Cell respiration

Objective

By the end of this class, you will be able

to apply knowledge of cellular respiration

to answer short-answer and open-

response questions on the quiz

Agenda

Cell respiration review

Lab review (exercise and burning food)

Quiz

Page 18: Cell respiration

1. What do you call the starting

materials in a chemical equation?

A. B. C. D.

20%

0%

64%

16%

A. Products

B. Ingredients

C. Reactants

D. Starters

Page 19: Cell respiration

2. What are the reactants in

cellular respiration?

A. B. C. D.

4%

13%

0%

83%

A. O2 and CO2

B. O2 and Glucose

C. Glucose and ATP

D. CO2, H2O, ATP, and

heat

Page 20: Cell respiration

3. What are the products in

cellular respiration?

A. B. C. D.

0%

92%

8%0%

A. O2 and CO2

B. O2 and Glucose

C. Glucose and ATP

D. CO2, H2O, ATP, and

heat

Page 21: Cell respiration

4. What is the purpose of cellular

respiration? Why is it important?

A. B. C. D.

0%

36%

64%

0%

A. To help us breathe

B. To make glucose for

cells

C. To make ATP for

cells

D. To take in oxygen

and release carbon

dioxide

Page 22: Cell respiration

5. The organelle where cell respiration

takes place is the

A. B. C. D. E. F.

0% 0%4%

91%

0%4%

A. Nucleus

B. Lysosome

C. Chloroplast

D. Vacuole

E. Mitochondrion

F. Ribosome

Page 23: Cell respiration

6. Why do some cells have more

mitochondria than other cells?

A. B. C. D.

70%

22%

0%

9%

A. The cells use more

energy

B. The cells store

more nutrients

C. The cells degrade

more proteins

D. The cells divide

more frequently

Page 24: Cell respiration

7. A poison that prevents cell respiration in

mitochondria will affect the production of…

A. B. C. D.

82%

5%0%

14%

A. ATP

B. Glucose

C. Oxygen

D. RNA

Page 25: Cell respiration

8. Choose the correct statement about

photosynthesis and cell respiration:

A. B. C. D.

4%

25%

63%

8%

A. Both in same

organelle

B. Both happen in all

living things

C. P produces carbon

dioxide, and CR uses

carbon dioxide

D. P stores energy and

CR releases energy

Page 26: Cell respiration

9. Which happens in the reaction on your paper?

A. B. C. D.

56%

11%

22%

11%

A. Energy from ATP is used

to make glucose

B. ADP adds a high-energy

bond to its structure

C. ADP is used to provide

oxygen to a cell

D. Energy is stored in ATP

for future use

Page 27: Cell respiration

10. Which conclusion is best supported by the

graph?

A. B. C. D.

0%

79%

11%11%

A. ATP production is

independent of sugar

B. Amount of cell

respiration is constant

C. ATP is only produced

when sugar is above 4 g/L

D. Amount of cell resp.

increases as sugar

concentration increases

Page 28: Cell respiration

Question 10

Page 29: Cell respiration

Exercise Lab Review Why does breathing rate increase during

exercise (2 reasons)?

◦ Necessity of oxygen

◦ Releasing carbon dioxide

Why does heart rate increase during exercise?

◦ Blood carries the stuff for cell respiration (reactants & products)

Does the amount of cell respiration increase during exercise? Why or why not?

◦ Yes! Cell respiration increases because you need more energy.

Page 30: Cell respiration

SIMILARITIES:

• both require

oxygen

• both require

glucose

• both contain heat

• both convert one

form of energy to

another

DIFFERENCES:

• cell respiration also

makes ATP energy

• also makes water

• Carbon monoxide

Burning food lab

Page 31: Cell respiration

Burning food lab

What was the source of energy in the

Frito? (i.e. what fueled the fire)

If the Frito was not consumed by fire,

what would happen to it if it was eaten?

How would you summarize the two

reactions in terms of energy conversion?

Page 32: Cell respiration

IF you finish early:

◦ Take a text from the cabinet, go to the back,

and start reading 38-1 (hw) and taking notes

in your notebook