According to the video, which one of the following best describes the role of the mitochondrion?

Question

BlackTom AI · Accepted Answer

When evaluating the question about the mitochondrion's role as described in the video, we should compare each option to the well-established functions of mitochondria.
Option 1: 'Secreting insulin' — This is primarily a function of pancreatic beta cells and their secretory machinery, not a core job of mitochondria. While mitochondria provide energy necessary for secretion, they are not the organelles responsible for secreting insulin themselves.
Option 2: 'Synthesizing ATP' — This is the central, defining role of mitochondria: generating ATP through cellular respiration (glycolysis provides pyruvate, the citric acid cycle processes substrates, and the electron transport chain drives ATP synthesis via oxidative phosphorylation). The video’s framing of mitochondria emphasizes energy production, so this option aligns with the described role.
Option 3: 'Producing pyruvate' — Pyruvate is produced in glycolysis occurring in the cytosol, not inside mitochondria. While mitochondria metabolize pyruvate to acetyl-CoA, the production step itself is cytosolic, making this an incorrect attribution to mitochondrial function.
Option 4: 'Polymerizing glucose' — Glucose polymerization is not a mitochondrial process; polymerization of glucose (as in glycogen synthesis) occurs in the cytosol and involves other enzymes, not mitochondrial activity. This misstates where glucose storage processes take place.
Option 5: 'Capturing CO2' — Mitochondria do not capture CO2; CO2 is a byproduct of decarboxylation reactions in metabolism and is typically released from cells. Carbon capture is not a mitochondrial function, so this option is inaccurate.
In summary, option 2 correctly identifies the mitochondrion’s primary described role in the video (ATP synthesis), while the other options describe processes that either occur elsewhere in the cell or do not pertain to mitochondrial functions.

According to the video, which one of the following best describes the role of the mitochondrion?

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According to the video, which one of the following best describes the role of the mitochondrion?

View Explanation

Log in for full answers

Similar Questions

Question at position 93 The final electron acceptor in aerobic cellular respiration is:FADH2NADHO2CO2

Question at position 3 Aerobic respiration is the way that we:produce CO2 from O2make ATP from CO2produce O2 from CO2synthesize glucoseget chemical energy from our food

Which one of the following types of organisms does not use or make ATP?

Oxygen is not used at any point in the citric acid cycle. However, the cycle will not work without oxygen because

In aerobic organisms, the ultimate electron acceptor in the _____ of carbon fuels is _____.

One of the following was either used or produced in both pyruvate processing and the citric acid cycle - which one?

Which one of the following does not take place in the mitochondrial matrix?

In the radish seed experiment, what is happening in the number 3 Petri dish with seeds that received water, but no sunlight?

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