What are the 4 whorls of the flower write their functions?
What are the 4 whorls of the flower write their functions?
The Four Whorls of a Flower The outer whorl is called the calyx, and consists of the sepals. The next whorl is the corolla, and consists of the petals. The two innermost whorls are the stamens and the carpels, and those contain the male and female reproductive parts of the flower respectively.
What are the 4 whorls of a complete flower?
There are commonly four distinct whorls of flower parts: (1) an outer calyx consisting of sepals; within it lies (2) the corolla, consisting of petals; (3) the androecium, or group of stamens; and in the centre is (4) the gynoecium, consisting of the pistils.
What are the modified leaves that protect the ovule?
The carpel is a modified leaf bearing the ovules, but the carpel is folded onto itself, wrapping the ovules inside. The “vessel” which the carpel forms gives the angiosperms their name.
Which whorl is responsible for protecting a developing flower?
The calyx is the outermost whorl of a flower. It comprises sepals, tiny leaves present at the base of a flower. These protect the flower whorls against mechanical injuries and desiccation. Some plants have coloured sepals the calyx and are called petaloid.
What are the 4 whorls of a flower class 10?
A typical flower has four main parts—or whorls—known as the calyx, corolla, androecium, and gynoecium (Figure 1). The outermost whorl of the flower has green, leafy structures known as sepals. The sepals, collectively called the calyx, help to protect the unopened bud.
Which part of the flower protects it in the bud condition?
sepals
The sepals (calyx) resemble leaves because of their generally green colour. From their base and along most of their length, sepals remain either separate or marginally fused. The sepals enclose and protect the unopened flower bud.
What is whorl in plants?
A plant has whorled leaves when there are three or more equally spaced leaves at a node. In angiosperm: General features. … outside) there would be a whorl of five sepals, followed by an alternating whorl of five petals, followed by an alternating set of five stamens.
What are the types of modified leaves?
Tendrils. The leaves are modified into slender wiry and.
What are the modified leaves?
The leaves get modified into thread-like structures called tendrils. These tendrils climb a nearby stick or wall and provide support to the plant. For eg., In Lathyrus aphaca, the whole leaf is modified into tendrils. The upper leaflets of Pisum sativum get modified into tendrils.
What is the function of essential whorls?
Explanation: Androecium and Gynoecium are called as essential whorls because it encloses the sexual parts of the flower, and develop into Stamen (male reproductive organ) and pistils (female reproductive organ).
What are the essential and accessory whorls?
Accessory whorls are also called as vegetative whorls which include sepals and petals. Essential whorls are also called as reproductive whorls which include stamens and pistil. A flower can be complete or incomplete based on the number of whorls present in it.
What are the four floral whorls starting from the innermost part?
If all four whorls (the calyx, corolla, androecium, and gynoecium) are present, the flower is described as complete. If any of the four parts is missing, the flower is known as incomplete.
What are the different types of modifications of leaves?
In many plants, leaves get modified to perform some special functions other than the normal ones, such as photosynthesis and transpiration. Sometimes these modifications are in response to certain environmental conditions. 1. Storage Leaves:
Which of the following plants have modified leaf-apex?
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. In barberry the leaf itself becomes modified into a spine; while the leaves of the axillary bud are normal. 4.
What are the different types of leaf modified into tendrils?
(i) Entire Leaf is Modified into Tendril, e.g., Lathyrus aphaca (wild pea) (Fig. 4.19). (ii) Upper Leaflets Modified into Tendrils, e.g, Pisum sativum (pea) (Fig. 4.20), Lathyrus odoratus (sweet pea). (iii) Terminal leaflets Modified into Tendrils, e.g., Naravelia (Fig. 4.21).
Why do plants modify their leaves?
In many plants, leaves get modified to perform some special functions other than the normal ones, such as photosynthesis and transpiration. Sometimes these modifications are in response to certain environmental conditions. Some of the important modifications are given below: