The correct option is (c) 1 and 3 only.
Explanation
In angiosperms (flowering plants), the flower serves as the reproductive unit. It typically consists of four whorls: calyx (sepals), corolla (petals), androecium (male reproductive unit), and gynoecium (female reproductive unit).- Statement 1 is Correct: The stamen is the male reproductive organ of a flower. It constitutes the androecium and typically consists of two parts: a long, slender stalk called the filament and a terminal structure called the anther, which produces pollen grains.
- Statement 2 is Incorrect: The pistil (or carpel) represents the female reproductive part of the flower, not the male. It constitutes the gynoecium and generally consists of three parts: the stigma (receptive surface for pollen), the style (connecting tube), and the ovary (basal swollen part containing ovules).
- Statement 3 is Correct: A flower that possesses both the male reproductive organs (stamens) and the female reproductive organs (pistil) is termed a bisexual or perfect flower. Examples include Hibiscus and Mustard. Conversely, a flower having either only stamens or only carpels is called a unisexual flower.
Key Takeaway: The stamen is the male reproductive unit (androecium), while the pistil is the female reproductive unit (gynoecium). Bisexual flowers contain both units within the same floral structure.