Identify the essential amino acids from below:(A) Valine(B) Proline(C) Lysine(D) Threonine(E) TyrosineChoose the correct answer from the options given below:

Match List - I with List - II. List - I (Carbohydrate) List - II (Linkage Source) (A) Amylose (I) $\beta$ - $C_1-C_4$, plant (B) Cellulose (II) $\alpha$ - $C_1-C_4$, animal (C) Glycogen (III) $\alpha$ - $C_1-C_4$, $\alpha$ - $C_1-C_6$, plant (D) Amylopectin (IV) $\alpha$ - $C_1-C_4$, plant Choose the correct answer from the options given below :

Which of the following acids is a vitamin ?

Identify the number of structure/s from the following which can be corelated to D-glyceraldehyde.

Match List-I with List-II. List - I (Saccharides) List - II (Glycosidic-linkages found) (A) Sucrose (I) α 1 $-$ 4 (B) Maltose (II) α 1 $-$ 4 and α 1 $-$ 6 (C) Lactose (III) α 1 $-$ β 2 (D) Amylopectin (IV) β 1 $-$ 4 Choose the correct answer from the options given below :

Identify correct conversion during acidic hydrolysis from the following : (A) starch gives galactose. (B) cane sugar gives equal amount of glucose and fructose. (C) milk sugar gives glucose and galactose. (D) amylopectin gives glucose and fructose. (E) amylose gives only glucose. Choose the correct answer from the options given below :

Given below are two statements: Statement I: Fructose does not contain an aldehydic group but still reduces Tollen's reagent Statement II: In the presence of base, fructose undergoes rearrangement to give glucose. In the light of the above statements, choose the correct answer from the options given below

The $\alpha$-Helix and $\beta$ - Pleated sheet structures of protein are associated with its :

The carbohydrate "Ribose" present in DNA, is A. A pentose sugar B. present in pyranose from C. in "D" configuration D. a reducing sugar, when free E. in $\propto$-anomeric form Choose the correct answer from the options given below:

Match List - I with List - II. .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-baqh{text-align:center;vertical-align:top} .tg .tg-amwm{font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0lax{text-align:left;vertical-align:top} List - I List - II (A) Adenine (I) (B) Cytosine (II) (C) Thymine (III) (D) Uracil (IV) Choose the correct answer from the options given below :

Given below are two statements: Statement I : D-glucose pentaacetate reacts with 2,4 -dinitrophenylhydrazine Statement II : Starch, on heating with concentrated sulfuric acid at $100^{\circ }\mathrm{C}$ and $2-3\mathrm{atmosphere}$ pressure produces glucose. In the light of the above statements, choose the correct answer from the options given below

Identify the correct statement among the following :

Given below are two statements: Statement I: D-(+)-glucose + D-(+) fructose $\stackrel{-{\mathrm{H}}_2\mathrm{O}}{\to }$ Sucrose $$\text{ sucrose }\stackrel{\text{ hydrolysis }}{\to }\mathrm{D}-(+)\text{ glucose }+\mathrm{D}-(+)\text{ fructose }$$ Statement II: Invert sugar is formed during sucrose hydrolysis In the light of the above statements, choose the correct answer from the options given below

A tetrapeptide, " $x$ " on complete hydrolysis produced glycine (Gly), alanine (Ala), valine (Val), leucine (Leu) in equimolar proportion each. The number of tetrapeptides (sequences) possible involving each of these amino acids is :

Given below are two statements :Statement (I) : On hydrolysis, oligo peptides give rise to fewer number of α-amino acids while proteins give rise to a large number of β-amino acids.Statement (II) : Natural proteins are denatured by acids which convert the water soluble form of fibrous proteins to their water insoluble form.In the light of the above statements, choose the most appropriate answer from the options given below :

A dipeptide, " $x$ " on complete hydrolysis gives " $y$ " and " $z$ ". " $y$ " on treatment with aq. ${\mathrm{HNO}}_2$ produces lactic acid. On the other hand " z " on heating gives the following cyclic molecule. Based on the information given, the dipeptide $X$ is :

Identify the pair of reactants that upon reaction, with elimination of HCl will give rise to the dipeptide Gly-Ala.

Fat soluble vitamins are: A. Vitamin ${\mathrm{B}}_1$ B. Vitamin C C. Vitamin E D. Vitamin B 12 E. Vitamin K Choose the correct answer from the options given below:

If $\tan \mathrm{A}=\frac{1}{\sqrt{x\left(x^2+x+1\right)}},\tan \mathrm{B}=\frac{\sqrt{x}}{\sqrt{x^2+x+1}}$ and $\tan \mathrm{C}={\left(x^{-3}+x^{-2}+x^{-1}\right)}^{1/2},0<\mathrm{A},\mathrm{B},\mathrm{C}<\frac{\pi }{2}$, then $\mathrm{A}+\mathrm{B}$ is equal to :