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Questions and Answers
What is the aim of Investigation 1 described in the text?
What is the aim of Investigation 1 described in the text?
- To explain the significance of oxygen utilization in cellular respiration. (correct)
- To observe the differences between germinating beans and boiled beans.
- To demonstrate the production of carbon dioxide during aerobic respiration.
- To study the effect of temperature on germinating beans.
In Investigation 1, why was a control setup with boiled beans used?
In Investigation 1, why was a control setup with boiled beans used?
- To compare the brightness of the glowing splint in both tubes.
- To increase the speed of oxygen utilization.
- To compare if any oxygen is consumed in the control setup. (correct)
- To demonstrate the effect of temperature on respiration.
What can be inferred from the results of Investigation 1?
What can be inferred from the results of Investigation 1?
- The glowing splint in the control tube dies out.
- The consumption of oxygen during cellular respiration. (correct)
- The control tube consumes more oxygen than the experimental tube.
- The germinating beans stop respiration overnight.
What is the main purpose of Investigation 2 outlined in the text?
What is the main purpose of Investigation 2 outlined in the text?
Why is it essential to sterilize the equipment in Investigation 2?
Why is it essential to sterilize the equipment in Investigation 2?
What does the presence of a control setup signify in scientific investigations?
What does the presence of a control setup signify in scientific investigations?
Which metabolic process generates energy from nutrients as mentioned in the text?
Which metabolic process generates energy from nutrients as mentioned in the text?
What is demonstrated by the experiment described in Investigation 3?
What is demonstrated by the experiment described in Investigation 3?
Why did the lime water in test tube D turn milky in Investigation 3?
Why did the lime water in test tube D turn milky in Investigation 3?
What is the main difference in the results between test tube B and test tube D in the experiments?
What is the main difference in the results between test tube B and test tube D in the experiments?
Which type of respiration was demonstrated in Investigation 3?
Which type of respiration was demonstrated in Investigation 3?
What effect does boiling the sugar solution have in Investigation 3?
What effect does boiling the sugar solution have in Investigation 3?
What conclusion can be drawn about carbon dioxide production from the given experiments?
What conclusion can be drawn about carbon dioxide production from the given experiments?
What was the purpose of setting up the apparatus with test tubes containing lime water?
What was the purpose of setting up the apparatus with test tubes containing lime water?
Why was yeast used in the experiment to demonstrate carbon dioxide production?
Why was yeast used in the experiment to demonstrate carbon dioxide production?
In Investigation 1, why is a control setup with killed beans used?
In Investigation 1, why is a control setup with killed beans used?
What does the glowing splint's reaction suggest in the experimental tube of Investigation 1?
What does the glowing splint's reaction suggest in the experimental tube of Investigation 1?
What is the primary purpose of inserting a glowing splint into each test tube in Investigation 1?
What is the primary purpose of inserting a glowing splint into each test tube in Investigation 1?
Why are germinating beans used in the experimental tube rather than other plant parts in Investigation 1?
Why are germinating beans used in the experimental tube rather than other plant parts in Investigation 1?
What significance does the boiling of some beans serve in Investigation 1?
What significance does the boiling of some beans serve in Investigation 1?
What does the brighter burning of the glowing splint in the control tube signify in Investigation 1?
What does the brighter burning of the glowing splint in the control tube signify in Investigation 1?
What is the purpose of setting up the apparatus with test tubes containing lime water in the experiments?
What is the purpose of setting up the apparatus with test tubes containing lime water in the experiments?
Why was a sugar solution boiled in Investigation 3?
Why was a sugar solution boiled in Investigation 3?
Which gas leads to the milky appearance of lime water in the experiments?
Which gas leads to the milky appearance of lime water in the experiments?
What is the main conclusion drawn about carbon dioxide production in the experiments?
What is the main conclusion drawn about carbon dioxide production in the experiments?
Why was yeast used in the experiments to demonstrate carbon dioxide production?
Why was yeast used in the experiments to demonstrate carbon dioxide production?
What does the milky appearance of lime water indicate in the experiments conducted?
What does the milky appearance of lime water indicate in the experiments conducted?
Why was a control set up with boiled beans used in one of the investigations?
Why was a control set up with boiled beans used in one of the investigations?
What effect did setting up the apparatus with yeast and sugar solution in anaerobic conditions have on the lime water in the test tubes?
What effect did setting up the apparatus with yeast and sugar solution in anaerobic conditions have on the lime water in the test tubes?
What is the primary difference between the experimental and control tubes in Investigation 1?
What is the primary difference between the experimental and control tubes in Investigation 1?
What does the occurrence of a glowing splint suddenly extinguishing imply in Investigation 1?
What does the occurrence of a glowing splint suddenly extinguishing imply in Investigation 1?
In Investigation 2, what could be a likely outcome if a similar experiment were conducted using boiled snails?
In Investigation 2, what could be a likely outcome if a similar experiment were conducted using boiled snails?
Why is Investigation 1 essential in providing insights into cellular respiration mechanisms?
Why is Investigation 1 essential in providing insights into cellular respiration mechanisms?
What does the presence of a control group with killed beans contribute to in Investigation 1?
What does the presence of a control group with killed beans contribute to in Investigation 1?
Hypothetically, if lime water was used in Investigation 2, what would its milky appearance imply?
Hypothetically, if lime water was used in Investigation 2, what would its milky appearance imply?
Based on the targeted outcomes in Investigation 1 and Investigation 2, why do scientists utilize living organisms in such research?
Based on the targeted outcomes in Investigation 1 and Investigation 2, why do scientists utilize living organisms in such research?
What conclusion can be drawn from the observation that lime water turns milky in Test Tube D of Investigation 3?
What conclusion can be drawn from the observation that lime water turns milky in Test Tube D of Investigation 3?
Why is it important to sterilize the equipment in Investigation 2 before setting up the experiment?
Why is it important to sterilize the equipment in Investigation 2 before setting up the experiment?
What effect does boiling the sugar solution have in Investigation 3 before setting up the experiment?
What effect does boiling the sugar solution have in Investigation 3 before setting up the experiment?
What is the purpose of setting up the apparatus with test tubes containing yeast and sugar solution in anaerobic conditions in Investigation 3?
What is the purpose of setting up the apparatus with test tubes containing yeast and sugar solution in anaerobic conditions in Investigation 3?
Why was a control set up with boiled beans used in one of the investigations described in the text?
Why was a control set up with boiled beans used in one of the investigations described in the text?
What does the brighter burning of the glowing splint in the control tube signify in one of the investigations?
What does the brighter burning of the glowing splint in the control tube signify in one of the investigations?
What metabolic process results in the production of carbon dioxide during anaerobic cellular respiration?
What metabolic process results in the production of carbon dioxide during anaerobic cellular respiration?
In Investigation 2, why did the lime water remain clear in Test Tube B?
In Investigation 2, why did the lime water remain clear in Test Tube B?
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