Question:

Choose the correct combinations

Updated On: Jun 6, 2022
  • (a)-(iv), (b)-(iii), (c)-(il), (d)-(i)
  • (a)?(i), (b)?(ii), (c)?(iii), (d)?(iv)
  • (a)?(ii), (b)?(iii), (c)?(iv), (d)?(i)
  • (a)?(iii), (b)?(iv), (c)?(i), (d)?(ii)
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The Correct Option is A

Solution and Explanation

Floral formula is the representation of the count and arrangement of the whorls of the flower. It is unique for a particular family of flowering plants and symbols are used for representation. 'A' signifies male reproductive part androecium. Similarly, G is for gynoecium, K for calyx and P for corolla.
Androecium is the male reproductive part of the flower having stamen made of filament (stock) and the anther. Anther is the sac like structure where the male gamete containing structures, pollen grains are formed.
Fabaceae, a.k.a. Leguminosae is the family of plant having legumes, peas group in them. This group is the third largest group and economically important family of flowering plants. The male part in floral diagram is represented as $A_{9 + \, 1}$ , meaning 10 stamens are present of which 9 are fused and 1 is not-attached with anther been dithecous.
Solanaceae also called 'potato family' are found in regions of tropics, subtropics and temperate zones. Mostly have herbs and shrubs types of plants. The male reproductive part in the floral formula is A, where there are 5 fused stamens and they are epipetalous.
Liliaceae, the lily family, form the representative of the monocot plants. Its as six stamens arranged in sets of three without fusion.
Brassicaceae includes the mustard plant group where the 6 male parts (stamen) of flower are arranges as sets of 2 and 4 without been fused. They are diadelphous.
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Concepts Used:

Morphology of Flowering Plants

Morphology in flowering plants tells us that every plant has two systems such as a root system and a shoot system. The root system digs deep into the ground and structures a system of its own. On the other hand, the shoot system is the one that is above ground level and includes various plant parts. 

Root System

The descending part of the plant grows under the soil roots. During the germination process, the radicle from the seed grows earthward and branches out. The branches along with the primary root are called the root system. Roots lack chlorophyll and therefore they are not green in color. Roots are positively geotropic and hydrotropic, that is, they grow downwards ground and water, and negatively phototropic, which is growing away from light.

There are three types of root systems found in plants are as follows:

  1. TapRoot System
  2. Fibrous Root System
  3. Adventitious Root System

Shoot System

The stem is also an essential element of the plant. It is the ascending portion of the plant axis that bears branches, flowers, leaves, and fruits, as well as aiding in water and mineral conduction. It is the plant's aerial portion, brought about from an embryo's plumule or germinating seeds. Young stems are ordinarily green, but they finally turn woody and brown.