Question

The individual components of perianth are called as:
A. Sepals
B. Petals
C. Tepals
D. Bracts

Answer 1

Hint: The flowers are the reproductive units of plants. Flowers reproduce and form seeds that grow into a new plant. Perianth is the part of the plant which forms a covering around the sexual parts of the flower.

Complete answer:
The perianth is the non-reproductive part of the flower which forms an envelope around the sexual organs having calyx and corolla. Calyx is the collective term used for sepals and corolla is termed as petals.
In the flowering plants, the perianth is of two types: heterochlamydeous/ dichlamydeous or homochlamydeous. In heterochlamydeous types of perianth, the sepals and petals are clearly distinguishable. While in homochlamydeous type, the sepals and petals are not distinguishable and are collectively called as tepals.
Sepals are the parts of flower which are green in color and are present at the base for the protection of flower buds. They also support the blooming of the flowers. Morphologically these are modified leaves.
Petals are also modified leaves which protect the reproductive parts of the plant. Also, they play a major part in the event of pollination; these are brightly colored and attract the various pollinators towards themselves so that the pollen grains get attached to the body of the insects.
Bracts are the modified leaves that are associated with the reproductive parts and form an outer covering for the reproductive parts. These are different from sepals and petals.

The correct answer is c.

Note: Many flowers have evolved various mechanisms for aiding pollination. Pollination is the event of transfer of pollen grains from anther to the ovary of the flower. Various pollination mechanisms include wind, water, insects etc.