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Osmotic Function - Essential Elements
Plant cells generally contain mineral ions 10 to 1000 times higher in concentration than the surrounding soil. That is why water enters the cells by osmosis and builds up turgor. You know that turgor maintains the shape and size of non-rigid plant parts such as leaves. Potassium is a key ion in this respect. Changes in its concentration in guard cells affect turgor and thus result in opening and closing of stomata. Turgor is also essential for the growth of plant cells.
In an experiment, isolated chloroplast thylakoids were incubated at pH 4.0 with ADP and inorganic phosphate (Pi) added to the medium and then transferred to a medium having pH 8.0.
SPECIE S CONCEPT - According to Davis and Heywood species define as assemblage of individuals with morphological features in common and separable from other such assembla
(a) What are the two main pollutants that contribute to acid rain? (b) Where do these pollutants come from? (c) What direct or indirect effect is 'acid rain
In an ecosystem various trophic levels are interlinked with each through a food chain. ( the transfer of food energy from green plants through a series of organism with repeated ea
Objectives of Gingival Curettage - Endodontic Surgery a) Provides access and visibility of the apex, b) Removal inflamed tissues, c) Provides biopsy. - It’s advisable
Q Are mollusc metameric beings? Exclusively analyzing this feature could it be said that molluscs are evolutionarily proximal to nematodes or to annelids? In molluscs there is
Retained foetal membranes The foetal membranes are normally expelled within 6to 12 hr after parturition in cows and buffaloes. If the foetal membranes are not voided even upto
functions of iron in the body: Iron is the major component in haemoglobin. It helps to carryout oxygen from lungs to the tissues. About 60 to 70% of Iron in the body i
Define the Diet intervention for lactose intolerance? Lactose is present in dairy products such as milk, cheese, yoghurt, ice cream etc. Hidden sources of lactose may include
Determine Water-soluble vitamins needs of school children and adolescents? The suggested requirements are given in Table 15.2 (ICMR 1990). Thiamine is computed as 0.5 mg/1000 K
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