(a) Root: It is the supportive part which fixes plants in its region of growth.
(b) Leaf: This is the part of a plant that prepares food for plants by using water and carbon dioxide in the presence of sunlight through the process called photosynthesis.
(c) Flower: Flowers are the reproductive part of a plant. They are the most beautiful and colourful part of a plant.
(d) Stem: Stems are the long, supportive axis of plants. The primary function of the stem is to hold up buds, flowers, leaves, and fruits of the plant.