Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 7, Problem 13TYK
There are several ways to measure
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What formula could we use to calculate the rate of respiration in this experiment.
Select all that apply:
Change in O_2O2 / Change in Time
Change in Time / Change in O_2O2
Change in CO_2CO2 / Change in Time
Change in Time / Change in O_2O2
Consider the reactants and products of cellular respiration, what do you think are three good ways to assess the rate of cellular respirations, i.e., what can you measure as a proxy for respiration rate?
According to this experiment, summarize it and be sure to address the following questions:
What hypothesis was being tested? How did you test your hypothesis? What independent and dependent variables were being investigated? What controls did you use? What were possible sources of error in your experiment? Please explain how the experiment you conducted supported or failed to support the original hypothesis.
Chapter 7 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 7.1 - Prob. 1SBCh. 7.1 - Distinguish between cellular respiration and...Ch. 7.2 - Prob. 1SBCh. 7.2 - What is the redox reaction in glycolysis?Ch. 7.2 - How is ATP synthesized in glycolysis?Ch. 7.3 - Summarize the fate of pyruvate molecules produced...Ch. 7.4 - What distinguishes the four complexes of the...Ch. 7.4 - Prob. 2SBCh. 7.5 - Prob. 1SBCh. 7.5 - Prob. 2SB
Ch. 7.6 - Prob. 1SBCh. 7.6 - What are the types of molecules that are the...Ch. 7.6 - Prob. 3SBCh. 7 - What is the final acceptor for electrons in...Ch. 7 - Prob. 2TYKCh. 7 - Prob. 3TYKCh. 7 - Prob. 4TYKCh. 7 - Prob. 5TYKCh. 7 - Prob. 6TYKCh. 7 - Prob. 7TYKCh. 7 - Prob. 8TYKCh. 7 - Which of the following statements is false?...Ch. 7 - In the 1950s, a diet pill that had the effect of...Ch. 7 - Discuss Concepts Why do you think nucleic acids...Ch. 7 - A hospital patient was regularly found to be...Ch. 7 - 13. There are several ways to measure...Ch. 7 - Apply Evolutionary Thinking Which of the two...Ch. 7 - Prob. 1ITDCh. 7 - Prob. 2ITDCh. 7 - As CO2 concentrations increase in the atmosphere,...Ch. 7 - Prob. 4ITD
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- In this experiment, you will be monitoring changes in CO2 concentration due to aerobic respiration and photosynthesis of each test organism. Which of the following results would be expected from the conditions described? Remember this is a closed system (the CO2 cannot escape), and we are monitoring changes in CO2 concentration over a 3 minute period. A) An animal will produce a higher increase in CO2 when exposed to the light than when kept in the dark. B) A plant will cause an overall higher increase in C02 concentration when exposed to light versus an plant kept in the dark. C) A plant will cause an overall higher increase of CO2 concentration when kept in the dark versus a plant exposed to light. D) An animal will show a decrease in CO2 while kept in the dark and an increase in CO2 while in the light.arrow_forwardA student doing the cellular respiration lab forgot to add KOH to their respirometer. When it is time to detect cellular respiration, describe in detail how this mistake experimentally would change their results.arrow_forwardA radiolabeled glucose solution is utilized as a nutrient source for a human myocyte in order to investigate the metabolic response under several conditions. This system was subjected to different conditions, and the CO₂(g) emitted is captured using carbon sequestration apparatus. The radioactivity of the sequestered gas is then measured. The following are the conditions (a to d). Arrange them in terms of expected radioactivity of the captured gas noting that higher radioactivity corresponds to increased concentration of CO2(g). Unless otherwise stated, all of these conditions are at room temperature. Explain the trend in 4 to 5 sentences. a. 1.0 M phosphate buffer, pH = 6.8 b. 0.1 M NaF c. 0.1 M citric acid d. 100 °Carrow_forward
- If a mouse and a small lizard of the same mass were placed in an experimental chamber under identical environmental conditions, which animal would consume oxygen at a higher rate? Explain.arrow_forwardI'm studing Cellular Respiration. We did a lab. We had technical difficulties... our CO2 gas sensor wasn't working properly. So I am curious, what trends SHOULD I have seen. We compared the CO2 output of bean sprouts vs mealworms. We tested at both room temp (27 degrees C) vs cold temp (15 degrees C) for both the mealworms and bean sprouts. I need to know the trends I should have seen, ie. does an animal or plant produces more C02 and why? Also does the the cool temp make the reduction in CO2 production? Thank you.arrow_forwardUse the following data and the RER table from your lab for the next couple of questions. Jane is 5'5" and 63 kg, and she generates the numbers in the table below on the respirometry cart. What would Jane's RQ, or RER be? VO2 (LO2/min) CO2 (LCO2/min) 0.20 0.14 0.19 0.13 0.23 0.16 0.21 0.15 0.19 0.12 0.22 0.15 0.21 0.16 0.18 0.12 0.20 0.14 0.20 0.14 What kind of fuel is Jane burning during the test? Mostly carbohydrate Mostly protein Mostly Lipid Mostly alcohol About 50% lipid and 50% carbohydratearrow_forward
- Write the mechanism for the transport of CO2 from cellular respiration sites to the lungs.Describe the process including where various steps take place.arrow_forwardIn an experiment, mitochondria were suspended in a buffered medium. The O2 electrode was used to monitor 0, consumption and assayed for the presence of ATP. Figure 3 shows the respiratory control by following the oxygen utilization (solid line) and ATP synthesis (discontinuous line) in the isolated mitochondria with additions of succinate, ADP, orthophosphate, oligomycin and dinitrophenol (DNP). Comment on the observations and relate the effects of the compounds added to electron transport and oxidative phosphorylation. Add DNP Add oligomycin Add ADP + P Add succinate Time Figure 3 Og consumed ATP synthesizedarrow_forwardYour scientist friend is working on a research project studying the effects of temperature on the metabolic rate of mice. You collect the data you see below in the table. Answer the following questions. Temperature Metabolic rate (ml oxygen/ml) 5°C (41°F) 258 25°C (77°F) 197 Identify the dependent and independent variables in this experiment. Dependent: _________________________________________________________ Independent: ________________________________________________________ List 2 other variables would need to be controlled in the experiment. 1. 2.arrow_forward
- Consider modeling the concentration of a chemical in a lung using the table below.Fill in the missing values and calculate the concentration at time t = 1 if the starting concentration is c0 = 0.11 mmol/L (millimoles per liter). Suppose the volume of the lung is V = 2.5 liters, the volume of air inhaled and exhaled in each breath is W =1.5 liters, and the ambient concentration of the surrounding air is a fixed 0.18 mmol/L. STEP Volume (L) Chemical (mmol) Concentration (mmol/L) Before Exhale 2.5 0.11 Exhale 1.5 0.11 After Exhale 0.11 Inhale 1.5 After Inhale The concentration at time t = 1 is c1: ______arrow_forwardWhat strategy would best measure the influence of temperature and PTU on oxygen consumption? OI will compare how the weights of the control mouse (not treated with PTU) and the experimental mouse (treated with PTU) change with temperature. I will compare the oxygen production of a control mouse (not treated with PTU) and an experimental mouse (treated with PTU) I will compare the normalized oxygen consumption at different temperatures for a control mouse (not treated with PTU) and an experimental mouse (treated with PTU)arrow_forwardYou are studying with a friend who is describing the Bohr effect. She tells you that in the lungs, hemoglobin binds oxygen and releases hydrogen ion; as a result, the pH increases. She goes on to say that in actively metabolizing muscle tissue, hemoglobin releases oxygen and binds hydrogen ion and, as a result, the pH decreases. Do you agree with her reasoning? Why or why not?arrow_forward
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