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Humans have an acquired immune system that produces antibodies to neutralize pathogens. However, the innate immune system is still present at the time of birth because it:
Cirrhosis of the liver is caused by the chronic intake of:
To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?
The drug called 'Heroin' is synthesized by:
In which one of the following options the two examples are correctly matched with their particular type of immunity?
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Some human organs like liver, kidney fail to function normally and transplantation is the only remedy to enable the patient to live a normal life. Reason (R): Tissue matching and blood group matching are essential before undertaking any transplant and patient has to take immunosuppresant thereafter. In the light of the above statements, choose the correct answer from the options given below:
Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid.
Which one of the following is the correct statement regarding the particular psychotropic drug specified?
Which amongst the following options is the correct relation between change in enthalpy and change in internal energy?
The equilibrium concentrations of the species in the reaction $A + B \rightleftharpoons C + D$ are 2, 3, 10 and 6 mol L$^{-1}$, respectively at 300 K. $\Delta G^{\circ}$ for the reaction is ($R = 2$ cal/mol K)
Pumice stone is an example of
On balancing the given redox reaction, $aCr_2O_7^{2-} (aq) + bSO_3^{2-} (aq) + cH^+ (aq) \rightarrow 2Cr^{3+} (aq) + bSO_4^{2-} (aq) + \frac{c}{2} H_2O(l)$, the coefficients a, b and c are found to be, respectively-
The reaction that does NOT take place in a blast furnace between 900 K to 1500 K temperature range during extraction of iron is :
Given below are two statements : Statement I : The nutrient deficient water bodies lead to eutrophication. Statement II : Eutrophication leads to decrease in the level of oxygen in the water bodies. In the light of the above statements, choose the correct answer from the options given below:
Which amongst the following will be most readily dehydrated under acidic conditions?
Identify the final product [D] obtained in the following sequence of reactions. $CH_3CHO \xrightarrow[ii) H_3O^+]{i) LiAlH_4} [A] \xrightarrow{H_2SO_4, \Delta} [B] \xrightarrow{HBr} [C] \xrightarrow{Na/dry ether} [D]$
Identify the major product obtained in the following reaction: $o-phthalaldehyde + 2[Ag(NH_3)_2]^+ + 3OH^- \xrightarrow{\Delta} \text{major product}$
Consider the following reaction : $\text{C}_6\text{H}_5-\text{CH}_2-\text{O}-\text{C}_6\text{H}_5 \xrightarrow{\text{HI}, \Delta} \text{A} + \text{B}$. Identify products A and B.
Colostrum, the yellowish fluid, secreted by the mother during the initial days of lactation is very essential to impart immunity to newborn infants because it contains:
Given below are two statements: Statement I: Bone marrow is the main lymphoid organ where all blood cells, including lymphocytes, are produced. Statement II: Both bone marrow and thymus provide micro environments for the development and maturation of T-lymphocytes. In the light of the above statements, choose the most appropriate answer from the options given below: