Monday 17 October Topic: Cellular RespirationDO NOW:• Brainstorm everything that you can about energy.Think about things such as where it comes from, how itbecomes available, how does it change into other forms,what is it used for, what types there are, etc.HW:• 8-1 Reading for Understanding
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 Notes on cell respiration
Why do we need energy? So we can reproduce So we can move around So we can interact with surroundings So our cells can function Thinking
In what form is energy available? Glucose Proteins, carbohydrates Food Solar Electric, water, chemical Wind, lithium ,nuclear, maltose
How does our body convert thisenergy? 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
Where do the waste products go? 2 waste products Carbon dioxide (exhale) Water (urinate, sweating, exhale)
THE FORMULA!!! O2 + C6H12O6 ATP + H2O + CO2 + heat
Tuesday 18 OctoberTopic: Exercise, Cell Respiration, andyour bodyDO NOW:• Pick up a packet from the kidney table and complete thefront page (“pre-lab”). You should fill in the blanks andwrite hypotheses for how exercise affects the body.• Jhon will come around and collect the 8-1 reading hwquickly and quietlyHW:• Reflections and conclusions questions
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!
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
Now… Take a seat, chill, start quietly writing your answers
Thursday 20 OctoberTopic: Burning food compared tocellular respirationDO NOW:• Take a copy of today’s activity and complete the 3pre-lab questions• Have your hw out for collectionHW:• Complete any lab questions that were not doneduring class• Study for tomorrow’s quiz (shorter)
Objective By 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 activity Silent reading Lab protocol Lab PART II (as a demo) Lab part I (in groups) Review for quiz tomorrow
Outdoor activity recap What are the key points to take away? Exercises increase heart rate carries oxygen to cells Carbon dioxide from cells Breathing rate increases to get more oxygen to make more energy
Silent reading In 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
Part II – Measuring the Calories in Food calorie – 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 grams Starting temp of water: 22 celsius Ending temp of water: 27 celsius Change in temperature: 5 degrees
Lab Protocol All bags, extra papers, etc must be off the lab table Any hair long enough is to be tied back IMPERATIVE that people stay in their seats Steps: ◦ 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.
Burning Food Cell RespirationGeneral Chip becomes black/burnt DO NOT ANSWERObservations Frito chip, match, cup of water, paper Glucose and oxygenStarting materials clipSource of fuel Carbs and lipids (fat) Glucose(energy source) Burnt chip/ charcoal Carbon dioxide, water, heat andEnd products ATPType(s) of energy Heat energy ATPreleasedCatalyst (what Match Enzymes in the mitchondriatriggers the reactionto start)Number of separate Three steps: prepare, light ,extinguish Threesteps of the process
SIMILARITIES: DIFFERENCES: Require oxygen • Cell respiration Burn glucose produces water Produce heat • Cell respiration Convert one form produces ATP of energy to • Burning produces another carbon monoxide
Cell Respiration Review With a partner, spend 15 minutes filling in the study guide questions
1. What is ATP and how is it used incells? ATP is chemical energy and is used to power everything in the cell and the body.
2. What is the purpose of cellrespiration? The purpose of cell respiration is to make usable energy.
3. Where does cell respirationhappen? It happens in the mitochondria.
4. What are the starting materials andend products for cell respiration? The starting materials are as follows: Oxygen and Glucose The products are: Water, ATP, energy, carbon dioxide, and heat.
5. How is cell respiration similar to anddifferent from actually burning food?
6. What is a calorie? A calorie is one gram of water heated by one degree Celsius.
7. How does exercise influence cellrespiration? Why? It makes you need more glucose and oxygen, and the rate of cell respiration will increase.
Friday 21 OctoberTopic: Cell Respiration Review & QuizDO NOW:• Get a clicker from the kidney table• Take out your notes on cell respirationHW:• 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 readingnotes!
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 quizAgenda Cell respiration review Quiz
1. What do you call the starting materials in a chemical equation?A. Products 35% 35%B. IngredientsC. Reactants 19%D. Starters 12% A. B. C. D.
2. What are the reactants in cellular respiration?A. O2 and CO2 48% O2 and Glucose 44%B.C. Glucose and ATPD. CO2, H2O, ATP, and heat 4% 4% A. B. C. D.
3. What are the products in cellular respiration?A. O2 and CO2 96%B. O2 and GlucoseC. Glucose and ATPD. CO2, H2O, ATP, and heat 4% 0% 0% A. B. C. D.
4. What is the purpose of cellularrespiration? Why is it important?A. To help us breatheB. To make glucose for 54% cellsC. To make ATP for cells 19% 15%D. To take in oxygen 12% and release carbon dioxide A. B. C. D.
5. The organelle where cell respirationtakes place is the 100%A. NucleusB. LysosomeC. ChloroplastD. VacuoleE. MitochondrionF. Ribosome 0% 0% 0% 0% 0% A. B. C. D. E. F.
6. Why do some cells have moremitochondria than other cells?A. The cells use more 64% energyB. The cells store more nutrientsC. The cells degrade more proteins 16% 16%D. The cells divide 4% more frequently A. B. C. D.
7. A poison that prevents cell respiration inmitochondria will affect the production of… 44%A. ATPB. GlucoseC. OxygenD. RNA 19% 22% 15% A. B. C. D.
8. Choose the correct statement aboutphotosynthesis and cell respiration:A. Both in same organelleB. Both happen in all living thingsC. P produces carbon dioxide, and CR uses carbon dioxideD. P stores energy and CR releases energy