Which of the following statements is incorrec | vedclass

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(A) The incorrect statement is that phosphorus is a constituent of all proteins. Phosphorus is a key component of cell membranes (phospholipids),nucle

Vedclass · Accepted Answer

Phosphorus is a constituent of cell membranes,certain nucleic acids,and all proteins.

Vedclass · Answer

(A) The incorrect statement is that phosphorus is a constituent of all proteins. Phosphorus is a key component of cell membranes (phospholipids),nucleic acids ($DNA$ and $RNA$),and $ATP$,but it is not a constituent of all proteins. Proteins are primarily composed of amino acids containing carbon,hydrogen,oxygen,nitrogen,and sometimes sulfur. $Nitrosomonas$ and $Nitrobacter$ are indeed chemoautotrophs that oxidize ammonia and nitrite,respectively. $Anabaena$ and $Nostoc$ are cyanobacteria that fix atmospheric nitrogen while living freely. Root nodule-forming bacteria like $Rhizobium$ live as aerobes in the soil when they are not in a symbiotic association with legumes.

Column-$I$	Column-$II$
$1$. Muscle contraction	$a$. $Mg^{+2}$
$2$. Digestion of food	$b$. $Ca^{+2}$
$3$. Energy exchange	$c$. $Mo$
$4$. Carbohydrate synthesis	$d$. $(PO_4)^{-3}$
$5$. Nitrogen fixation	$e$. $Cl^-$

Which of the following statements is incorrect?

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Which mineral element is essential regarding respiratory pigments in invertebrates and vertebrates?

Analogy type questions:
$(1)$ Nitrogenase : Oxygen sensitive :: Leghaemoglobin : ........
$(2)$ Microbe on roots of Alnus : Frankia :: Roots of leguminous plants : Rhizobium :: Denitrification : Pseudomonas :: Biological nitrogen fixation : ........

Nitrogen is required mainly by which of the following parts of the plants?
$I.$ Meristematic tissues
$II.$ Differentiating tissues
$III.$ Apical tissues
$IV.$ Metabolically active cells
Choose the correct option.

Nitrates of soil are also leached deep into the earth by . . . . . . .

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