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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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?
It is essential for the cells in plants and animals to have an adequate supply of oxygen. Explain what the oxygen is needed for in the cells? (Be as specific as possible.)
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.
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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- A 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_forwardIf 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_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_forward(Practice Hint: Click or tap the boxes in the table to place check marks. Click or tap a check mark to change your selection.) The table lists some characteristics of two cellular respiration processes. Select the correct box or boxes in each row to best compare the processes. Uses glucose as a Cellular Respiration Processos uses glucose as a reactant uses oxygen as a reactant produces the most energy occurs in mitochondria occurs in cytoplasm Aerobic Anaerobic 0000 Aerobic > ? 00000 Anaerobicarrow_forwardIn a study of O2 uptake by muscle at high altitude, a physiologist prepares an atmosphere consisting of 79 mole % N2, 17 mole % 16O2, and 4.0 mole % 18O2. (The isotope 18O will be measured to determine O2 uptake.) The total pressure is 0.75 atm to simulate high altitude. Calculate the mole fraction and partial pressure of 18O2 in the mixture.arrow_forward
- Explain the relationship of oxygen consumption and body mass by referring to the figure 3.5 (Interpret the graph)arrow_forwardPearcy (1977) grew an evergreen shrub (Atriplex lentiformis) collected from cool coastal (Ventura) and hot desert (Death Valley) habitats at two different temperatures regimes and measured various physiological responses. The relationships between respiration and leaf temperature in the figure suggest which of the following? The shrub has adapted to the two different climates. O The shrub has acclimated to the two different climates. O Both A and B are correct. O None of the above is true.arrow_forwardThe respiratory process involves hemoglobin (Hgb), an iron-containing compound found in red blood cells. In the process, carbon dioxide diffuses from tissue cells as molecular CO2, while O2 simultancously enters the tissue cells. A significant fraction of the CO, leaving the tissue cells enters red blood cells and reacts with hemoglobin; the CO, that does not enter the red blood cells (O in the figure below) remains dissolved in the blood and is transported to the lungs. Some of theCO, entering the red blood cells reacts with hemoglobin to form a compound (Hgb-CO, 2 in the figure). When the red blood cells reach the lungs, the Hgb-CO, dissociates, releasing free CO,. Meanwhile, the CO, that enters the red blood cells but does not react with hemoglobin combines with water to form carbonic acid, H¿CO3, which then dissociates into hydrogen ions and bicarbonate ions (O in the figure). The bicarbonate ions diffuse out of the cells (O in the figure), and the ions are transported to the lungs…arrow_forward
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