Match the following and choose the correct combination
Column I Column II (a) Zeatin 1. Flowering Hormone (b) Florigen 2. Synthetic Auxin (c) IBA 3. Cytokinin (d) NAA 4. Natural Auxin
Match the following and choose the correct combination
| Column I | Column II | ||
| (a) | Zeatin | 1. | Flowering Hormone |
| (b) | Florigen | 2. | Synthetic Auxin |
| (c) | IBA | 3. | Cytokinin |
| (d) | NAA | 4. | Natural Auxin |
- (a)-3, (b)-1, (c)-4, (d)-2
- (a)-4, (b)-1, (c)-2, (d)-3
- (a)-3, (b)-4, (c)-1, (d)-2
- (a)-2, (b)-1, (c)-4, (d)-3
The Correct Option is A
Approach Solution - 1
Approach Solution -2
Ans. Zeatin is a member of the cytokinin family of plant growth hormones. It is made composed of a purine ring structure with a hydroxyl, amino, and olefin side chain. It is called after the maize genus Zea, after which it was found. The root systems of plants generate cytokinins like zeatin.
The hormone-like molecule called florigen is thought to be in charge of regulating and/or initiating plant blooming. The shoot apical meristem of buds and developing tips is where florigen activates after being created in the leaves. It can also work between different species and is known to be graft-transmissible.
With the chemical formula C12H13NO2, indole-3-butyric acid is a crystalline solid that ranges in color from white to light yellow. It decomposes before melting at 125 °C and air pressure. IBA, an auxin-family plant hormone, is a component of several commercial horticulture plant rooting preparations.
A rooting agent used for vegetative plant multiplication from stem and leaf cuttings, NAA is a synthetic plant hormone in the auxin family that is a component of many commercial plant rooting horticulture products. Additionally, plant tissue culture uses it.
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Concepts Used:
Plant Growth and Development
Growth in Plants:
Plants have the distinctive ability to grow throughout their life. The meristem cells present there in the roots and shoot apical lead to the primary growth of the plant. The primary growth which happens or takes place at the tips of the stem and roots of the plant contributes to the elongation of the plant along its axis.
In the later stages of growth in plants, the growth in dicotyledonous, vascular cambium, gymnosperms, and cork-cambium are also caused by the existence of meristems in them. These intercalary meristems are put up to increase the girth of the organs of the plant in which they are active. Such type of growth is commonly known as secondary growth.
Many parameters such as area, volume, fresh weight, cell number, dry weight, length, etc are utilized to measure the growth in plants as increase in the amount of protoplasm is responsible for the growth in plants.
Read More: Plant Growth and Development