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Questions and Answers
What distinguishes the shape of unilocular adipocytes from multilocular adipocytes?
What distinguishes the shape of unilocular adipocytes from multilocular adipocytes?
- Multilocular are fat droplets while unilocular are solid
- Unilocular are smaller and more rounded
- Shape is not significantly different
- Unilocular are large and ovoid (correct)
Where are multilocular adipocytes predominantly found?
Where are multilocular adipocytes predominantly found?
- In fetuses and newborns (correct)
- Around the kidney
- In adult humans
- In subcutaneous tissue
What is the primary function of unilocular adipocytes?
What is the primary function of unilocular adipocytes?
- Synthesis and storage of fat (correct)
- Heat generation
- Production of hormones
- Regulation of blood pressure
Which of the following is a feature exclusive to multilocular adipocytes?
Which of the following is a feature exclusive to multilocular adipocytes?
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Which anatomical feature of unilocular adipocytes is described as having a signet ring appearance?
Which anatomical feature of unilocular adipocytes is described as having a signet ring appearance?
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Study Notes
Unilocular Adipocyte (White)
- Found in subcutaneous tissue, around blood vessels and kidney.
- Large ovoid or oval in shape.
- Contains a single large fat droplet, pushing the cytoplasm and nucleus peripherally.
- The cytoplasm appears thin and the nucleus flattened when viewed under a light microscope.
- Stains orange with Sudan III stain.
- Electron microscopy reveals large lipid droplets and few cell organelles around the nucleus.
- Responsible for synthesis and storage of fat.
- Provides supporting function, for example around the kidney.
Multilocular Adipocyte (Brown)
- Located in fetuses and newborns.
- Present in adults but in small amounts.
- Smaller than white adipocytes.
- Contains multiple fat droplets within the cytoplasm.
- The nucleus is centrally located and rounded.
- Electron microscopy reveals numerous mitochondria surrounding the fat droplets and few other organelles.
- Primary function is heat generation.
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