Recent questions tagged nutrition-in-plants

Which one is a component of ferredoxin?

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NPK denotes

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Passage of minerals from top soil to subsoil through seepage of water is known as

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Phosphorus and nitrogen ions generally get depleted in soil because they usually occur as

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Theory suggesting that carbon dioxide produced in respiration helps in mineral absorption is called

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A trace element,also required for plant growth,and in the form of radioactive isotope useful in cancer therapy is

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Iron deficiency results in

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Active ion uptake means

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Plant ash indicates

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The element that causes toxic effect upon protoplasm are

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Plastocyanin contains

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Hydroponics is

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Plants require two metallic compounds (minerals) for chlorophyll synthesis.They are

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On the basis of symptoms of chlorosis in leaves a student inferred that this was due to deficiency of nitrogen.This inference could be corrected only if we assume that yellowing of leaves appeared first in

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Most of the plants obtain nitrogen from the soil in the form of

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Chlorosis in plants occurs due to

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Which of the following is present in chlorophyll molecule

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Which of the following elements is necessary for translocation of sugars in plants

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Which one of the following essential elements normally obtain directly from the air by the plants

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Which of the following is not an essential micro-nutrient.

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Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The active absorption of minerals is inhibited when roots are deprived of oxygen.}\\\text{Reason:Active absorption of minerals require expenditure of metabolic energy which comes from respiration in the presence of oxygen.}\end{array}$

asked Apr 4, 2014 by sreemathi.v

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Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The nodule bacteria fixes nitrogen in presence of pigment leghaemoglobin}\\\text{Reason:The pigment leghaemoglobin acts as oxygen scavenger and creates anaerobic condition which is essential for the activity of enzyme nitrogenase}\end{array}$

asked Apr 4, 2014 by sreemathi.v

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Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The ions move from endodermis to xylem elements by an active process}\\\text{Reason:For movement,metabolic energy comes from respiration }\end{array}$

asked Apr 4, 2014 by sreemathi.v

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Given the Assertion and Reason below, Choose one of the following responses

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Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:In nepenthes,lamina is modified to capture insects to get nitrogenous food}\\\text{Reason:The plant proteins are broken down to amino acids which are then absorbed by plants}\end{array}$

asked Apr 4, 2014 by sreemathi.v

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Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Rhizobial aggregates have been observed at distinct sites on curled root hairs }\\\text{Reason:The infection thread is formed by a process of invagination of the hair cell walls in the region of curling}\end{array}$

asked Apr 4, 2014 by sreemathi.v

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Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Many insectivorous plants are able to survive plants are able to survive without feeding on insects.}\\\text{Reason:Growth of insectivorous plants is stimulated when they trap and utilise insects}\end{array}$

asked Apr 4, 2014 by sreemathi.v

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Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Farmers grow a leguminous crop and plough it back in the field}\\\text{Reason:Leguminous plants fix atmospheric nitrogen through symbiotic nitrogen fixing bacteria}\end{array}$

asked Apr 4, 2014 by sreemathi.v

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Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:If you burn a plant,its nitrogen component is given off as ammonia and other gases}\\\text{Reason:Hydroponics does not allow plants to grow well if they are supplied with all the mineral nutrients they need}\end{array}$

asked Apr 4, 2014 by sreemathi.v

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Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Leaves develop chlorosis in the absence of iron}\\\text{Reason:Iron is a constituent of chlorophyll }\end{array}$

asked Apr 4, 2014 by sreemathi.v

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Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Plants growing in magnesium deficient soils show extensive interveinal chlorosis in leaves}\\\text{Reason:Magnesium is a constituent of chlorophyll}\end{array}$

asked Apr 4, 2014 by sreemathi.v

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Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The deficiency of calcium symptoms first appear in the apical region}\\\text{Reason:Calcium is highly mobile in plants}\end{array}$

asked Apr 3, 2014 by sreemathi.v

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Match the items in column I with items in column II:

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Match the items in column I with items in column II:

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Match the items in column I with items in column II:

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