Slide 1 / 103 Slide 2 / 103 1 What is metabolism? 2 What role do enzymes play in metabolic pathways? Slide 3 / 103 Slide 4 / 103 3 How are catabolic pathways related to energy 4 ‘Anabolic’ steroids were/are occasionally utilized production? by bodybuilders and athletes to enhance performance. Relate what you know about anabolic pathways to explain why these specific groups of people used these drugs. Slide 5 / 103 Slide 6 / 103 5 Are catabolic pathways endergonic or exergonic 6 Explain the relationship between catabolic and reactions? Compare the amount of free energy in anabolic pathways. the reactants to the amount of free energy in the products of a catabolic pathway.
Slide 7 / 103 Slide 8 / 103 7 Which type of pathway may occur 8 What energy-storing molecule, created through spontaneously? Explain this in terms of free catabolic pathways, can be utilized later as a energy availability. source of energy currency? Slide 9 / 103 Slide 10 / 103 9 Which bond, in an ATP molecule, contains the 10 What has happened to a molecule that has been most energy? Why is this true? ‘phosphorylated?’ How do you know energy has been released in this process? Slide 11 / 103 Slide 12 / 103 11 Why is ATP considered a recyclable molecule? 12 What type of cellular process may be powered by the input of ATP molecules? Homework
Slide 13 / 103 Slide 14 / 103 13 Suppose you were able to remove enzymes from 14 What are the differences between catabolic and their involvement in metabolic pathways. What anabolic pathways? changes, if any, would you be able to observe in the metabolic processes? Slide 15 / 103 Slide 16 / 103 15 Would a bodybuilder elect to use a catabolic 16 Explain why it makes sense, in terms of energy steroid or an anabolic steroid? Explain your content, that a catabolic pathway is utilized in answer. obtaining energy from food. Slide 17 / 103 Slide 18 / 103 17 Which type of a pathway (catabolic or anabolic) 18 When coupled, do metabolic pathways result in a needs to occur first, in order to supply energy for net endergonic or exergonic reaction? Explain the other one? your answer.
Slide 19 / 103 Slide 20 / 103 19 Which molecule contains more energy, adenosine 20 Which bond, in a molecule of ATP, is broken to diphosphate or adenosine triphosphate? Explain obtain energy from the molecule? Why is this the your answer. case? Slide 21 / 103 Slide 22 / 103 21 Why does adding phosphate groups to the tail of 22 After providing a reaction with energy through adenosine monophosphate store energy within phosphorylation, why does an ADP molecule get the molecule? recycled back to ATP, instead of supporting an additional reaction? Cellular Respiration Classwork Slide 23 / 103 Slide 24 / 103 23 If cellular respiration is a process that yields ATP 24 What role do the molecules NAD+ and FAD play in molecules, do you think this is a catabolic or the process of cellular respiration? anabolic pathway? Support your answer.
Slide 25 / 103 Slide 26 / 103 25 Why are electron acceptors necessary in order for 26 Is oxygen a good agent for reduction or oxidation NADH+H+ and FADH2 to release stored energy? processes? Why? Slide 27 / 103 Slide 28 / 103 27 Suppose you are a scientist studying a newly 28 What is the net yield of ATP through glycolysis? discovered organism. You are asked to determine the type of cellular respiration utilized by this organism and determine whether it is an a) obligate anaerobe, b) obligate aerobe, or c) facultative anaerobe. Design an experiment to test this, and explain what results you would expect for each type of organism. Slide 29 / 103 Slide 30 / 103 29 Why does the citric acid cycle need to convert 30 What relationship exists between the CO2 pyruvate to a different carbon compound in order molecules produced through the citric acid cycle complete the cycle? What is the scientific name and the pyruvates that begin the cycle? for this process?
Slide 31 / 103 Slide 32 / 103 31 Why does the citric acid cycle need to complete 32 Why is the reduction of FAD to FADH2 a two rounds in order to completely process a significant result of the citric acid cycle? molecule of glucose? Slide 33 / 103 Slide 34 / 103 33 When analyzing the process of cellular 34 Considering anaerobic respiration, explain why respiration, it may help to compare the process to primordial Earth had a higher concentration of volleyball, with the first three stages being the CH4, H2, and N2S than our current atmosphere. ‘set,’ and the final stage the ‘spike.’ Explain why this analogy makes sense. Slide 35 / 103 Slide 36 / 103 35 Why is the creation of a proton gradient, through 36 In what way is ATP synthase like a turnstile? the electron transport chain, essential for the What object would represent people in this ultimate goal of energy production through analogy? oxidative phosphorylation?
Slide 37 / 103 Slide 38 / 103 37 How are electron carriers NADH and FADH2 38 How do you think the oxidative phosphorylation utilized in the electron transport chain process? process would be affected by the lack of an electron acceptor at the end of the ETC? For example, what would happen if all of the oxygen were consumed during the process of phosphorylation, but reduced electron carriers were still available? Slide 39 / 103 Slide 40 / 103 39 Explain why the versatility of catabolism through 40 Summarize the process of cellular respiration to cellular respiration allows organisms to survive in describe how organisms produce ATP through many different conditions. catabolic pathways. Homework Slide 41 / 103 Slide 42 / 103 41 Life on Earth is sometimes described as a cycle 42 Which molecule contains more energy: FAD or by biologists. Explain why this ‘cycle’ can never FADH2? Explain your response. reach a point of equilibrium.
Slide 43 / 103 Slide 44 / 103 43 Is the conversion of FADH2 to FAD an example of 44 Suppose you are experimenting in a lab with an oxidation or reduction? Why? organism that dies in the presence of oxygen. Considering metabolic pathways, how would you categorize this organism? Slide 45 / 103 Slide 46 / 103 45 Glycolysis is considered an anaerobic process. 46 What carbon compound is created as a result of What information can you determine from this glycolysis? description? Slide 47 / 103 Slide 48 / 103 47 What three energy storing compounds are created 48 What is the net gain of ATPs from the breakdown through the citric acid cycle? of one glucose molecule at the end of the citric acid cycle?
Slide 49 / 103 Slide 50 / 103 49 When oxygen is present, oxidative 50 Why does the valence number of an atom of phosphorylation can yield 3 ATPs per NADH and 2 oxygen allow it to be a strong electron acceptor, ATPs per FADH2. After the first three steps of enabling more copious energy production? cellular respiration, we have 10 NADH molecules and 2 FADH2 molecules. How many ATP molecules can these electron carriers yield? Slide 51 / 103 Slide 52 / 103 51 Why is the creation of a concentration gradient 52 How would a condition that caused the inability of essential for the process of oxidative the previous steps of cellular respiration to create phosphorylation? NADH and FADH2 affect production of ATP through oxidative phosphorylation? Slide 53 / 103 Slide 54 / 103 53 Compare the process of oxidative 54 Which carbon compound yields more energy phosphorylation to the synthesis or hydroelectric through respiration, fats or carbohydrates? power through using a dam. Fermentation Classwork
Slide 55 / 103 Slide 56 / 103 55 Why must organisms resort to the process of 56 Do obligate aerobes engage in the process of fermentation when electron acceptors are fermentation? Why or why not? unavailable? Slide 57 / 103 Slide 58 / 103 57 Would fermentation occur in an organism that had 58 It may be said that in an absence of electron an ample supply of electron acceptors? Why or acceptors, fermentation allows glycolysis to why not? occur. Why is this true? Slide 59 / 103 Slide 60 / 103 59 Swiss cheese is produced partially by the process 60 Imagine you are working as a sports medicine of fermentation. Hypothesize why Swiss cheese physician. You are asked to devise a way that has holes in it when completed. athletes could perform strenuous activity without the associated muscle burn. Provide a possible solution for this problem.
Slide 61 / 103 Slide 62 / 103 61 Does the process of fermentation itself produce 62 In what way is glycolysis related to fermentation? any ATP? Explain. Homework Slide 63 / 103 Slide 64 / 103 63 What is the difference between lactic acid 64 What role does anaerobic respiration play in the fermentation and ethanol fermentation? creation of alcoholic beverages, such as beer or wine? Slide 65 / 103 Slide 66 / 103 65 Why do your muscles burn during a strenuous 66 Suppose you are sitting in the lunch room when a physical activity? neighboring student makes the claim that ‘eating bacteria would be so gross.’ You notice the student has just eaten a yogurt. How do you reply to this statement? Photosynthesis Classwork
Recommend
More recommend
