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Triss [41]
2 years ago
13

During apoptosis, which cellular organelle does the work of breaking up the nucleus and causing the cell to die?

Biology
1 answer:
Neko [114]2 years ago
3 0

Answer:

B) Mitochondrion

Explanation:

Mitochondria play a pivotal role in apoptosis. Apoptosis or programmed cell death can be initiated by both intracellular and extracellular signals. Mitochondria are responsible for mediating apoptosis initiated by intracellular signals. These are membrane-bound, rod-shaped organelles found in most eukaryotic organisms.

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Suppose you were to add the uncoupler dinitrophenol (DNP) to a preparation of chloroplast carrying out photosynthesis. Which of
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Answer:

The activity which is likely to be affected is Cyclic Phosphorylation

Explanation:

In the Cyclic phosphorylation high energy electron released from P700 returns  to the photosystem 1 via moving through a cycle that contains different acceptors. This type of Transport facilitates the mobility of Hydrogen ions across the cell membrane which eventually generates concentration gradient and helps in the production of ATP while moving Hydrogen ions from lower to higher concentration through the ATP synthetase channel protein on membranes. (DNP) Dinitrophenol acts as protonophore and drives the transfer of Hydrogen ions across the membrane skipping the ATP Synthetase. DNP make cells inefficient to produce ATP molecules for its energy.

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3 years ago
12. In our somatic (body) cells, we have ___________ chromosomes, but in our sex cells (sperm & eggs), we have half the numb
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Answer:

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Explanation:

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3 years ago
Explain, in your own words, how you would use the light microscope to view a wet mount of a protist, assuming the microscope is
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Answer:

Please find the detailed explanation/description on how to use the light microscope to view a wet mount of a protist. The 9 structures mentioned in the question are in CAPS.

Explanation:

- Firstly, the slide containing the wet mount of the protist is prepared and placed at the centre of a lowered STAGE. The STAGE CLIPS over the sides of the slide are used to hold it in place.

- The revolving turret or nosepiece is turned so that the LOWEST POWER OBJECTIVE LENS is in position i.e. directly above the sample/slide. The SCANNING OBJECTIVE LENS, the lowest objective lens with power of 4x is used initially.

- The slide is viewed through the EYEPIECE, and the image is brought into focus using the STAGE KNOBS.

- The COARSE FOCUS KNOB is turned until the protist on the slide is brought into broad focus. The FINE FOCUS KNOB is then used to bring the image on the slide into sharp focus.

N.B: The OBJECTIVE LENS should not touch the cover slip on the slide during this process.

- When the protist on the slide is clear using lowest power objective lens, the revolver turret can be rotated to allow HIGHER POWER OBJECTIVE LENS.

- Due to higher magnification of the HIGH POWER OBJECTIVE LENS, the protist might need to be refocused using the FOCUS KNOBS.

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4 years ago
Why is oxygen necessary for muscle contraction?
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3 years ago
Which statement correctly compares an atom of an alkali metal with an atom of the alkaline earth metal next to it on the periodi
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The alkali metal atom forms a +1 ion. the alkaline metal atom forms a +2 ion.
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4 years ago
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