Which organelle is described as being oval shaped and present only in plants?

The organelle that is oval-shaped and specifically found in plants is the chloroplast. Chloroplasts are essential for photosynthesis, which is the process by which plants convert sunlight into chemical energy. These organelles contain chlorophyll, the green pigment that captures light energy, allowing plants to synthesize their own food.

Chloroplasts have a characteristic oval shape and are distinct from other organelles found in various types of cells. For example, mitochondria, while also essential for energy production, are found in nearly all eukaryotic cells, not exclusively in plants. The centriole is involved in cell division and is predominantly found in animal cells. The nuclear membrane, which encloses the nucleus, is present in both plant and animal cells.

Therefore, the distinctive oval shape and the unique role of chloroplasts in photosynthesis help to identify them as the correct answer in this context.