Category: Biology
Gynoecium Gynoecium or pistil is the fourth whorl of the flower. It is the female reproductive part of flower. The individual members of the pistil are called carpels. When …
Androecium Androecium is the third whorl of the flower. It is the essential part and comprises of the male reproductive organs, called the stamens. Each stamen consists of three …
RESPIRATORY QUOTIENT (R.Q) Respiratory quotient is the ratio of the volume of carbon dioxide produced to the volume of oxygen consumed in respiration over a period of time. RQ=Volume …
MICROPROPAGATION Micropropagation is the propagation of plants by using plant cells, tissues, and organs with the help of tissue culture technique. Tissue culture is a technique of maintaining, growing …
FLOWER Flower is the reproductive structure found in the flowering plants. Flower is attached to the stems by a stalk called, the pedicel. The terminal portion of the pedicel …
Types of Corolla Corolla is the second accessory whorl of a flower and the individual members of this whorl are called petals. Each petal consists of a narrow basal …
WATER POTENTIAL The difference between the free energy of water molecule in pure water and the free energy in any other system (water in a solution or in …
Availability of soil water for plants: Soil is the main reservoir of water for plants, which ultimately comes from rain. The amount of water in soil is variable, …
WATER ABSORBING ORGANS OF PLANTS Water is absorbed in plant through roots but under certain conditions, water is absorbed by shoot also. Some plants also absorb water through their …
PASSIVE WATER ABSORPTION This theory explains that the forces responsible for absorption of water into the roots are governed by other cells. Water is continuously lost by …