monday 17 october topic: cellular respiration
DESCRIPTION
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: - PowerPoint PPT PresentationTRANSCRIPT
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Monday 17 OctoberTopic: 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
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ObjectiveBy the end of this class, you will
be able to write the chemical equation for cell respiration and identify its reactants and products.
AgendaNotes on cell respiration
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Why do we need energy?So we can reproduceSo we can move aroundSo we can interact with
surroundingsSo our cells can functionThinking
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In what form is energy available?GlucoseProteins, carbohydratesFood SolarElectric, water, chemicalWind, lithium ,nuclear, maltose
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How does our body convert this energy?ENERGY MUST BE IN CHEMICAL
FORM FOR US TO USE IT!!!!!!!!ATP (adenosine tri phosphate),Mitochondria makes ATP (through
metabolism)Oxygen and glucose are
converted into energy and waste
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Where do the waste products go?2 waste products Carbon dioxide (exhale)Water (urinate, sweating, exhale)
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THE FORMULA!!!O2 + C6H12O6 ATP + H2O + CO2 +
heat
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Tuesday 18 OctoberTopic: Exercise, Cell Respiration, and your bodyDO 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.• Jhon will come around and collect the 8-1 reading hw quickly and quietly
HW:• Reflections and conclusions questions
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ObjectiveExplain how the chemical
equation for cell respiration relates to breathing, and why we breathe harder during exercise.
AgendaProtocol for outdoor activityHow to measure a pulseOutside activity!
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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
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Now…Take a seat, chill, start quietly
writing your answers
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Thursday 20 OctoberTopic: Burning food compared to cellular respiration
DO NOW:• Take a copy of today’s activity and complete the 3 pre-lab questions• Have your hw out for collection
HW:• Complete any lab questions that were not done during class • Study for tomorrow’s quiz (shorter)
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ObjectiveBy the end of this class, you will
be able to identify 3 similarities and 3 differences between burning food and cell respiration by igniting a Frito chip.Agenda
Recap of outdoor activitySilent readingLab protocolLab PART II (as a demo)Lab part I (in groups)Review for quiz tomorrow
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Outdoor activity recapWhat are the key points to take
away?Exercises increase heart rate
carries oxygen to cells Carbon dioxide from cellsBreathing rate increases to get
more oxygen to make more energy
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Silent readingIn order to best understand
today’s lab and to answer all the questions properly, you will need additional information.
The last page of your lab packet was copied from the text
Turn to it and read silently for 5 minutes
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Part II – Measuring the Calories in Foodcalorie – amount of energy needed to
raise the temp of one gram of water by one degree celsius
Calorie (aka kilocalorie) – 1000 calories
Quantitative Data:Volume of water 100 mL = 100
gramsStarting temp of water: 22 celsiusEnding temp of water: 27 celsiusChange in temperature: 5 degrees
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Lab ProtocolAll bags, extra papers, etc must be off the
lab tableAny hair long enough is to be tied backIMPERATIVE that people stay in their seatsSteps:
◦Secure the frito into the holder apparatus◦Have a cup of water ready to drop match into◦Once I see that all groups are ready, I will
distribute a match to each group◦Light the frito FROM THE BOTTOM, drop the
match into the water, observe the reaction and then fill in the table accordingly.
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Burning Food Cell Respiration
General Observations
Chip becomes black/burnt DO NOT ANSWER
Starting materials
Frito chip, match, cup of water, paper clip
Glucose and oxygen
Source of fuel (energy source)
Carbs and lipids (fat) Glucose
End productsBurnt chip/ charcoal Carbon dioxide, water,
heat and ATP
Type(s) of energy released
Heat energy ATP
Catalyst (what triggers the reaction to start)
Match Enzymes in the mitchondria
Number of separate steps of the process
Three steps: prepare, light ,extinguish
Three
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SIMILARITIES:Require oxygenBurn glucoseProduce heatConvert one
form of energy to another
DIFFERENCES:• Cell respiration
produces water• Cell respiration
produces ATP• Burning
produces carbon monoxide
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Cell Respiration ReviewWith a partner, spend 15 minutes
filling in the study guide questions
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1. What is ATP and how is it used in cells?ATP is chemical energy and is
used to power everything in the cell and the body.
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2. What is the purpose of cell respiration?The purpose of cell respiration is
to make usable energy.
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3. Where does cell respiration happen?It happens in the mitochondria.
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4. What are the starting materials and end products for cell respiration?
The starting materials are as follows:
Oxygen and Glucose
The products are:Water, ATP, energy, carbon dioxide, and heat.
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5. How is cell respiration similar to and different from actually burning food?
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6. What is a calorie?A calorie is one gram of water
heated by one degree Celsius.
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7. How does exercise influence cell respiration? Why?It makes you need more glucose
and oxygen, and the rate of cell respiration will increase.
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Friday 21 OctoberTopic: 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!
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ObjectiveBy 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
AgendaCell respiration reviewQuiz
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1. What do you call the starting materials in a chemical equation?
A. B. C. D.
35%
19%
35%
12%
A. ProductsB. IngredientsC. ReactantsD. Starters
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2. What are the reactants incellular respiration?
A. B. C. D.
4%
48%
4%
44%A. O2 and CO2
B. O2 and GlucoseC. Glucose and ATPD. CO2, H2O, ATP,
and heat
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3. What are the products incellular respiration?
A. B. C. D.
0%
96%
0%4%
A. O2 and CO2
B. O2 and GlucoseC. Glucose and ATPD. CO2, H2O, ATP,
and heat
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4. What is the purpose of cellular respiration? Why is it important?
A. B. C. D.
15%12%
54%
19%
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
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5. The organelle where cell respiration takes place is the
A. B. C. D. E. F.
0% 0% 0%
100%
0%0%
A. NucleusB. LysosomeC. ChloroplastD. VacuoleE. MitochondrionF. Ribosome
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6. Why do some cells have more mitochondria than other cells?
A. B. C. D.
64%
16%
4%
16%
A. The cells use more energy
B. The cells store more nutrients
C. The cells degrade more proteins
D. The cells divide more frequently
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7. A poison that prevents cell respiration in mitochondria will affect the production of…
A. B. C. D.
44%
15%
22%19%
A. ATPB. GlucoseC. OxygenD. RNA
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8. Choose the correct statement about photosynthesis and cell respiration:A. Both in same
organelleB. Both happen in all
living thingsC. P produces
carbon dioxide, and CR uses carbon dioxide
D. P stores energy and CR releases energy