mcqs with correct answer | preparation for competitive exams | mdcat preparation |
Автор: Competitive preparation academy
Загружено: 2024-07-24
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The correct answer is C) Mitochondria.
Mitochondria are often referred to as the "powerhouses" of the cell because they generate most of the energy that the cell needs to function. They do this by converting the energy stored in the food we eat (in the form of carbohydrates, fats, and proteins) into a molecule called ATP (adenosine triphosphate), which is the energy currency of the cell.
Mitochondria are responsible for:
Generating energy for the cell through cellular respiration
Regulating cell growth and division
Maintaining cellular calcium levels
Initiating apoptosis (programmed cell death)
The other options are not correct because:
A) Nucleus: The nucleus is the control center of the cell, containing the genetic material (DNA) and regulating cell growth and reproduction.
B) Cell membrane: The cell membrane is the outer layer of the cell, responsible for protecting the cell and regulating the movement of materials in and out.
D) Lysosomes: Lysosomes are membrane-bound organelles responsible for cellular digestion and recycling, but they are not the primary source of energy for the cell.
I hope that helps! Let me know if you have any further questions.
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