An example that demonstrates apoptosis is
Correct answer: B. The self-destruction of an immune cell
- A. A severe burn causes skin cells to die
- B. The self-destruction of an immune cell
- C. The irreversible loss of the liver cells in liver cancer
- D. An over stretched muscle fibre due to heavy exercise
Explanation
The correct answer is Option B:the self-destruction of an immune cell.Apoptosis is a programmed process of cell death that occurs in multicellular organisms, helping to remove cells that are no longer needed or are a threat to the organism, like immune cells after they've served their purpose. Option A describes necrosis, which is uncontrolled cell death due to injury. Option C relates to the pathological cell changes in cancer. Option D describes muscle fiber damage, not cell death through apoptosis.
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Animal and plant cells share a plasma membrane, cytoplasm, nucleus, ribosomes, mitochondria and endoplasmic reticulum, but plant cells also have a cellulose cell wall, chloroplasts and a large permanent vacuole. Questions cover organelle structure and function, differences between the two cell types, and how membranes control movement of substances.
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