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 $X$	Column $Y$
$(1)$ Magnesium	$(P)$ Blood clotting
$(2)$ Molybdenum	$(Q)$ Constituent of cysteine amino acid
$(3)$ Calcium	$(R)$ Essential for nitrogen fixation
$(4)$ Sulphur	$(S)$ Activation of enzymes

Column-$I$ (Element)	Column-$II$ (Function)
$A$. Calcium	$I$. Required for ionic balance
$B$. Boron	$II$. Essential for constitution of nucleic acid
$C$. Phosphorus	$III$. Required for absorption of calcium
$D$. Chlorine	$IV$. Required to activate respiratory enzyme
$E$. Manganese	$V$. Required for synthesis of mitotic spindle

Column $I$	Column $II$	Column $III$
$A$. Calcium	$I$. Required for ionic balance	$(i)$. Grey blot on leaves
$B$. Boron	$II$. Essential for constitution of nucleic acid	$(ii)$. Fruit-yield decreases
$C$. Phosphorus	$III$. Required for absorption of calcium	$(iii)$. Red blot on leaves
$D$. Chlorine	$IV$. Required to activate respiratory enzyme	$(iv)$. Fruit-size diminishes
$E$. Manganese	$V$. Required for synthesis of mitotic spindle	$(v)$. Young root tip begin to die

Which of the following statements is incorrect?

Similar Questions

Select the correct match for $X$ and $Y$.
Column $X$ Column $Y$
$(1)$ Magnesium $(P)$ Blood clotting
$(2)$ Molybdenum $(Q)$ Constituent of cysteine amino acid
$(3)$ Calcium $(R)$ Essential for nitrogen fixation
$(4)$ Sulphur $(S)$ Activation of enzymes

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 : ........

Which of the following plants are used as green manure in crop fields and in sandy soils?

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