The cells with rose-violet cytoplasm belong to which tissue type?

• A. Epithelial tissue
• B. Connective tissue
• C. Muscle tissue
• D. Nervous tissue

Answer: (B)

Fading in on how cytoplasm colors relate to tissue types helps here. The color of the cytoplasm seen on a stained slide reflects both the cytoplasmic content and the stain reaction. Connective tissue cells, like fibroblasts, often show a gentler, rose-to-violet tint in routine stains because their cytoplasm is protein-rich but relatively sparse around a large extracellular matrix. The surrounding matrix and the way the stain binds produce this softer, rose-violet appearance.

In contrast, muscle tissue contains abundant contractile proteins, so its cytoplasm (sarcoplasm) tends to stain very intensely with eosin, giving a bright pink to red look. Nervous tissue cytoplasm is usually less prominent and can appear more basophilic due to Nissl substance. Epithelial cells can have variable cytoplasm but don’t typically present that rose-violet hue characteristic of connective tissue in standard histology staining.

So the observed rose-violet cytoplasm best fits connective tissue.