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Six tubes containing preparations from animal tissue were set up as shown below. Tube contents
(i) glucose + homogenised cells
(ii) glucose + mitochondria
(iii) glucose + cytoplasm lacking organelles
(iv) pyruvic acid + homogenised cells
(v) pyruvic acid + mitochondria
(vi) pyruvic acid + cytoplasm lacking organelles
After incubation, in which three tubes would carbon dioxide be produced?
  • a)
    (i), (ii) and (iii)
  • b)
    (i), (iv) and (v)
  • c)
    (iii), (iv) and (vi)
  • d)
    (iii), (v) and (vi)
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Six tubes containing preparations from animal tissue were set up as sh...
Glucose and pyruvic acid serve as sources of substrates which the homogenised cells can oxidise in glycolysis and Kreb's cycle respectively. Mitochondria however, can only oxidise pyruvic acid via the Kreb's cycle.
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Most Upvoted Answer
Six tubes containing preparations from animal tissue were set up as sh...
Explanation:

The production of carbon dioxide is associated with cellular respiration, which takes place in the mitochondria. Let's analyze each tube to identify which ones would produce carbon dioxide.

Tubes containing glucose:
(i) Glucose + homogenized cells: In this tube, glucose is present along with homogenized cells. The homogenized cells contain all the cellular components, including the mitochondria. Therefore, carbon dioxide would be produced in this tube.

(ii) Glucose + mitochondria: In this tube, glucose is present along with isolated mitochondria. The mitochondria are responsible for carrying out cellular respiration, which involves the production of carbon dioxide. Therefore, carbon dioxide would be produced in this tube as well.

(iii) Glucose + cytoplasm lacking organelles: In this tube, glucose is present along with cytoplasm that lacks organelles. Since the mitochondria are absent in this tube, cellular respiration cannot occur, and carbon dioxide would not be produced.

Tubes containing pyruvic acid:
(iv) Pyruvic acid + homogenized cells: In this tube, pyruvic acid is present along with homogenized cells. Pyruvic acid is an intermediate product of glucose metabolism and can enter the mitochondrial matrix to participate in cellular respiration. Therefore, carbon dioxide would be produced in this tube.

(v) Pyruvic acid + mitochondria: In this tube, pyruvic acid is present along with isolated mitochondria. The mitochondria can utilize pyruvic acid for cellular respiration, leading to the production of carbon dioxide. Therefore, carbon dioxide would be produced in this tube.

(vi) Pyruvic acid + cytoplasm lacking organelles: In this tube, pyruvic acid is present along with cytoplasm that lacks organelles. Without the presence of mitochondria, cellular respiration cannot occur, and carbon dioxide would not be produced.

Tubes producing carbon dioxide:
Based on the analysis above, the tubes in which carbon dioxide would be produced are:
(i) Glucose + homogenized cells
(iv) Pyruvic acid + homogenized cells
(v) Pyruvic acid + mitochondria

Therefore, the correct answer is option (b) (i), (iv), and (v).
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Six tubes containing preparations from animal tissue were set up as shown below. Tube contents(i) glucose + homogenised cells(ii) glucose + mitochondria(iii) glucose + cytoplasm lacking organelles(iv) pyruvic acid + homogenised cells(v) pyruvic acid + mitochondria(vi) pyruvic acid + cytoplasm lacking organellesAfter incubation, in which three tubes would carbon dioxide be produced?a)(i), (ii) and (iii)b)(i), (iv) and (v)c)(iii), (iv) and (vi)d)(iii), (v) and (vi)Correct answer is option 'B'. Can you explain this answer?
Question Description
Six tubes containing preparations from animal tissue were set up as shown below. Tube contents(i) glucose + homogenised cells(ii) glucose + mitochondria(iii) glucose + cytoplasm lacking organelles(iv) pyruvic acid + homogenised cells(v) pyruvic acid + mitochondria(vi) pyruvic acid + cytoplasm lacking organellesAfter incubation, in which three tubes would carbon dioxide be produced?a)(i), (ii) and (iii)b)(i), (iv) and (v)c)(iii), (iv) and (vi)d)(iii), (v) and (vi)Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Six tubes containing preparations from animal tissue were set up as shown below. Tube contents(i) glucose + homogenised cells(ii) glucose + mitochondria(iii) glucose + cytoplasm lacking organelles(iv) pyruvic acid + homogenised cells(v) pyruvic acid + mitochondria(vi) pyruvic acid + cytoplasm lacking organellesAfter incubation, in which three tubes would carbon dioxide be produced?a)(i), (ii) and (iii)b)(i), (iv) and (v)c)(iii), (iv) and (vi)d)(iii), (v) and (vi)Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Six tubes containing preparations from animal tissue were set up as shown below. Tube contents(i) glucose + homogenised cells(ii) glucose + mitochondria(iii) glucose + cytoplasm lacking organelles(iv) pyruvic acid + homogenised cells(v) pyruvic acid + mitochondria(vi) pyruvic acid + cytoplasm lacking organellesAfter incubation, in which three tubes would carbon dioxide be produced?a)(i), (ii) and (iii)b)(i), (iv) and (v)c)(iii), (iv) and (vi)d)(iii), (v) and (vi)Correct answer is option 'B'. Can you explain this answer?.
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