Is flower modified stem?
Evidences to confirm that flower is a modified shoot: In several plants, the flower buds are transformed into vegetative buds or bulbils, example: Agave, Onion, and so on. 3.
What is a flower modified?
The thalamus of a flower is the enlarged and condensed axis. It has nodes and very short internodes. It bears the floral whorls at the nodes. Therefore, the flower is called as modified shoot.
What is the modified leaf of a flower?
Leaves or leaf parts may be modified to provide support. Tendrils and hooks are the most common of these modifications. In the flame lily (Gloriosa superba; Colchicaceae), the leaf tip of the blade elongates into a tendril and twines around other plants for support.
Is an onion a modified stem?
The onion bulb is a modified stem because it consists of large numbers of fleshy scales leaves. At the base of the onion the root appears as a thread like structure. Having a cluster of fleshy leaves, the onions look like a tunicate bulb. These are cultivated and used all round the world.
Why is flower modified shoot?
A flower is a modified shoot. The meristem of the flower stem is determinate, meaning that once the flower parts are produced, no further cell division occurs. Flower parts, which are modified leaves, are arranged in whorls on the expanded apex of the flower stalk or pedicel.
Is flower modified leaf?
The flower is generally defined as a highly specialized reproductive shoot, comparable to leaves- bearing shoot. The sepals and petals may be regarded as modified leaves. Stamens and carpels also show some resemblance to leaves in position, arrangement, internal structure and development.
Is a flower a modified leaf?
The sepals and petals in flowers are considered as modified leaves. A flower is a modified shoot (stem bearing leaves). The thalamus bears whorls of green leaves/appendages (sepals), colored leaves (petals), male appendages stamens, female appendages (ovaries).
What is an example of a modified leaf?
Leaf-spines: 4.25) the minute leaves of the axillary bud are modified into spines. The leaf-apex in date-palm, dagger plant (Yucca) etc., is so modified, while in plants like prickly or Mexican poppy (Argemone), Amercian aloe (Agave), Indian aloe (Aloe), etc., spines develop on the margin as well as at the apex.
Is a carrot a modified stem?
1: Storage roots: Many vegetables, such as carrots and beets, are modified roots that store food and water. Other examples of modified roots are aerating roots and haustorial roots.
Is potato a modified stem?
Though potato seems to be a root, it is a stem. It is actually a modified stem usually called tuber. As the tubers grow underground, they are connected by small stem sections called stolons. Hence, potatoes are called modified stem because of (B) Tuber.
What makes a flower a modified part of a plant?
That being said, and seen in previous answers, flowers are modified stem and leaves (shoot). Sepals, petals, stamens, and carpels are modified leaves on the receptacle (modified stem).
Why is a flower called a modified shoot?
It may have epicalyx. The thalamus of a flower is the enlarged and condensed axis. It has nodes and very short internodes. It bears the floral whorls at the nodes. These whorls are arranged in a definite sequence. Hence, flower is called as modified shoot.
What makes up the stem of a flower?
In a typical flower the stem portion is condensed to form a compact receptacle called thalamus.The thalamus bears whorls of green leaves/appendages (sepals), colored leaves (petals), male appendages stamens, female appendages (ovaries).
What makes the thalamus of a flower a modified shoot?
The thalamus of a flower is the enlarged and condensed axis. It has nodes and very short internodes. It bears the floral whorls at the nodes. These whorls are arranged in a definite sequence. Hence, flower is called as modified shoot.