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ysosomes inside white blood cells (macrophage) help the cell to
digest (break down) pathogens (disease causing bacteria)
synthesize proteins to build muscles
lipids & carbohydrates for the energy currency known as A
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The correct choice is the first one: lysosomes in macrophages help the cell to digest (break down) pathogens (disease‑causing bacteria).
Why:
- Lysosomes contain hydrolytic enzymes and an acidic interior. In phagocytic cells like macrophages they fuse with phagosomes (containing engulfed bacteria) to form phagolysosomes and degrade the pathogens.
- They do not synthesize proteins (that’s the role of ribosomes/ER) and they do not produce the cell’s ATP (that’s mainly the mitochondria). Lipid synthesis largely occurs in the smooth ER.
Why:
- Lysosomes contain hydrolytic enzymes and an acidic interior. In phagocytic cells like macrophages they fuse with phagosomes (containing engulfed bacteria) to form phagolysosomes and degrade the pathogens.
- They do not synthesize proteins (that’s the role of ribosomes/ER) and they do not produce the cell’s ATP (that’s mainly the mitochondria). Lipid synthesis largely occurs in the smooth ER.
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