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The most abundant element present in the plants is
Which of the following is a component of middle lamella in plant cells ?
Calcium is required for the formation of calcium pectinate, which is the constituent of the middle lamella in the cell walls.
Which of the following element is necessary for translocation of sugars in plants ?
Deficiency of iron causes :
The characteristic symptom of iron deficiency is the interveinal chlorosis. The symptom may be general or localised to a single leaf or a single branch because of the limited mobility of iron in the tissues. The deficiency symptom first appears in young leaves.
Nitrogenase enzymes are extremely sensitive to _________molecules –
Which of the following element is a constituent of protein synthesis?
Sulphur is a constituent of various amino acids such as cysteine and methionine. The plants require sulphur for protein synthesis.
In the choices below, which is not a correct pairing of a macronutrient and the major functions it performs in the life of a plant?
Which one of the following elements is not absorb through soil?
Which of the following is essential mineral element and is not a constituent of any enzyme but stimulate the activity of many enzymes?
According to Webster (1953) potassium is activator of more than 40 enzymes connected with phosphorylation, photosynthesis, starch synthesis, respiration, synthesis of chlorophyll, DNA and proteins.
In plants a common symptom caused by deficiency of P, K, Ca and Mg is the
Necrosis caused by deficiency of minerals appears at specific regions of leaves like tips, margins, interveinal, etc. It usually occurs after chlorosis, e.g., K, P, Ca, Mg, Mn, Cl.