What are the modified leaves that protect the ovule called?
In the center of a typical flower are the carpels, modified leaves which enclose the ovules. These are often fused to form a single pistil in the center of the flower. Surrounding the carpels are several narrow stalks topped by pollen sacs; these pollen-bearing stalks are called stamens.
What are these modified leaves of a flower that protect the flower while it is still a bud?
When a flower is a bud, it is surrounded by sepals, which in many cases are green, as in this example. They protect the flower bud and are behind/underneath the petals when the flower opens. Together, all of the sepals are called a calyx.
What is the part of a flower that protects the flower bud?
sepals
What floral parts are the most modified from a leaf?
Leaves or leaf parts may be modified to provide support. Tendrils and hooks are the most common of these modifications.
Is a flower a 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 stem?
A flower is a modified shoot (stem bearing leaves). 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).
Why is flower a 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 an onion a modified stem?
The bulb resembles a flat disc-like underground stem structure that supports the root system and develops the leaves. This scientific classification states that an onion is a modified stem. It contains a flat stem with the roots.
Why is Flower said to be modified shoot?
(ii) During the flowering season, the apical meristem gives rise to the floral meristem. The axis of the stem gets condensed, while the internodes lie near each other. Instead of leaves, various floral appendages arise from the node. Therefore, it can be said that the flower is a modified shoot.
What is correct about flower it is modified?
The thalamus of a flower is the enlarged and condensed axis. It has nodes and very short internodes. Therefore, the flower is called as modified shoot. Thus, the correct answer is option B.
Is flower a condensed shoot?
Flower is a condensed shoot. Its respective lateral organs are sepal, petal, stamen,carpel.
Which part of the flower is highly modified stem?
– A flower is considered a modified shoot that is borne on thalamus. The thalamus shows four nodes with highly condensed internodes. These four nodes give rise to four whorls of the flower.
Why are stem modified?
The stem is the plant axis that bears shoots, leaves, buds, and the basal end-roots. It conducts water, minerals, and food to other parts of the plant body through various systems. In some plants, the stem is modified to perform other functions such as storage of food, support, vegetative propagation, and protection.
Is banana a modified stem?
Note: The original stem type of the banana plant is the rhizome which gives rise to a modified part called sucker. Rhizome is a type of modified stem but in this case, it acts as the true stem of the plant and the sucker acts like the modified stem of the plant.
Which of the following is a modified stem for protection?
Correct Answer : B. Thorn is a stiff, sharp-pointed woody projection on the stem or other part of a plant. Thorns are found in many plants such as Citrus, Bougainvillea. They protect plants from grazing animals.
Why potato is a modified stem?
It is actually a modified stem usually called tuber. As the tubers grow underground, they are connected by small stem sections called stolons. Besides, there are small notches or pits present in potatoes from which new potato buds can grow. Hence, potatoes are called modified stem because of (B) Tuber.
What organ of the plant is modified in a potato?
A stem tuber is a thickened part of a rhizome or stolon that has been enlarged for use as a storage organ. In general, a tuber is high in starch, e.g. the potato, which is a modified stolon.
How can we say that potato is a modified stem?
Potatoes are called as modified stems because it possess many qualification which is of stem . Poutatoes are underground stem . and usually called as tubers . They are called as modified stem because as it has scaly leaves, it has nodes, internodes, buds and adventitious roots.