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What are stomata? How do these structures participate in the plant transpiration?
Stomata (singular, stoma) are small specialized passages for water and gases there in the epidermis of the plants. As the plant requires more or less to lose water and heat the stomata respectively close or open preventing or permitting the passage of gases by diffusion.
Plant Physiology - Image Diversity: stomata
ELECTRON TRANSPORT CHAIN All processes require energy. In living cells, we constantly use energy for a number of biochemical reactions e.g. muscular movements, synthesis of ne
What is Saliva Saliva is the colourless viscous fluid. It helps in swallowing the food by lubricating the food and the neutral pH of saliva prevents the decalcifica
Pulmonary Ventilation: Pulmonary ventilation is the process by which gasses flow between the atmosphere and lung alveoli. Air moves into the lungs when air pressure inside the
Denaturing Gel is an agarose or the acrylamide gel run under conditions which destroy the secondary or tertiary protein or RNA. For protein, this generally means the inclusion of
Particulates: These are suspended droplets, solid particles or mixture of two. So all the atmospheric substances that are not gases are called particulates. A number of term
Define briefly about the Selenium? The element selenium was discovered in 1817 in association with the element sulphur. However, selenium as an essential nutrient remained unre
What are the main structures of the human eye? The major structures of the human eye are the cornea, the iris, the pupil, the ciliary muscles, the crystalline lens and the ret
Motion Sickness The pathogenesis of motion sickness is poorly under- stood. The prescription cholinergic blocker scopolamine in a patch or oral formulation can decrease sympto
Which physical elements contributed to the great amount of available energy on the primitive earth at the time of the origin of life? 3.5 billion years since the water cycle wa
Hydrogen ( H) has 1 electron, carbond ( c) has 6 electrons ; oxygen ( O) has electrons, Nitrogen ( n) HAS 7 electrons. Use the octet rule to determine which of the following is mos
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