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State in brief about the Macronutrients
Each element is specific in its function in plant metabolism, however, the exact functions for a number of them are still not known. These essential elements exist as structural components of a cell, maintain cellular organisations, function in energy transformations and in enzyme reactions.
Carbon, hydrogen and oxygen form about 94% of the dry mass of plants. These elements are obtained from carbon dioxide and water which are converted to carbohydrates photochemically and ultimately transformed to protein and protopl asm. Besides their structural role, they provide energy required for the growth and development of plants by oxidative breakdown during cellular respiration. These elements, however, are not considered to be mineral nutrients.
Ventilation of Gills Various mechanical devices are used to increase the flow of water over the gill's surface. There can be two means of increasing the flow of water over the
Q. Show Artificial systems of classification of plants? Carolus Linnaeus (1707-1778) popularly known as Carl Von Linne was born on May 1707 at Result, a small village in Smalan
Protection of Plants against Toxic Substances Plants produce several toxic substances themselves and may also encounter the ones produced by other plants or present in the env
What is Fehling's test - Reduction Tests? This test is answered by all reducing sugars which possess a free aldehyde or ketone group. All monosaccharides possess a free aldehyd
Pituitary The pituitary is also known as hypophysis. It is composed of two embryologically distinct tissue. The anterior pituitary or adenohypophysis is derived from the roof
Environmental factors of viscosity and plasticity a) Temperature affects the viscosity of a colloid. Generally, its viscosity decreases as the temperature increases. For e.g.
Describe about the Halstead's discriminating tests Halstead's discriminating tests are viewed as a measure of adaptive abilities, of skills that ensured man's survival on the p
Explain the Transfer from liquid medium to solid media? Here the steps involved include: 1. Inoculating loop is sterilized by incineration and allowed to cool, as described
what are the biological significance of skeleton
What are gametes? Gametes are cells specialized in sexual reproduction. They have half of the maximum number of chromosomes of the species and unite with another gamete giving
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