Biomolecules · Chemistry · AP EAPCET
MCQ (Single Correct Answer)
Which of the following do not reduce Tollen's reagent?
(A) Fructose
(B) Sucrose
(C) Lactose
(D) Cellulose
Consider the following
Statement-I Lysine, arginine are essential and basic amino acids.
Statement-II Leucine, phenylalanine are non essential and neutral amino acids.
Correct answer is
Which of the following represents the correct structure of $\beta-D-(-)$ - fructofuranose?
Which of the following statement is not correct for glucose?
Which of the following enzymatic reaction is not correctly matched with enzyme shown against it in brackets?
Identify the essential amino acids from the following
I. Leucine
II. Tyrosine
III. Cysteine
IV. Histidine
$$ \text { Which of the following represents nucleoside of RNA? } $$
$$ \text { Match the following } $$
| List-I (Glycosidic linkage) |
List-II (Polysaccharide) |
||
|---|---|---|---|
| (A) | $$ \alpha-1,4 $$ |
(I) | Amylose |
| (B) | $$ \beta-1,4 $$ |
(II) | Amylopectin |
| (C) | $$ \alpha-1,4, \alpha-1,6 $$ |
(III) | Cellulose |
The list given below contains essential amino acids that are basic $(X)$ and also non essential amino acids that are neutral $(Y) . X$ and $Y$, respectively are
I. Lysine
II. Alanine
III. Serine
IV. Arginine
V. Tyrosine
Consider the following
Statement-I : Cane sugar is a disaccharide of $\alpha$-D-glucose and $\beta$-D-fructose.
Statement-II : Milk sugar is a disaccharide of $\alpha$-D-glucose and $\beta$-D-galactose.
The correct answer is
The deficiency of vitamin $(X)$ causes convulsions. Source of $X$ is $Y$. What are $X$ and $Y$ ?
Consider the following
Statement-I Primary structure of protein represents its constitution.
Statement-II $\alpha$-Helix and $\beta$-pleated sheet structure of protein represent tertiary structure of it.
Correct answer is
Consider the following.
Statement I : Lactose is composed of $\alpha$ - $D$-glucose and $\beta$-D-glucose.
Statement II : Lactose is a reducing sugar.
$$ \text { Match the following. } $$
| List-I (Hormones) |
List-II (Functions) |
||
|---|---|---|---|
| A. | Glucocorticoids | I. | In the control of menstrual cycle |
| B. | Mineralocorticoids | II. | Prepares the uterus for implantation of fertilised egg |
| C. | Progesterone | III. | Control the level of excretion of water and salt by the kidneys |
| D. | Estradiol | IV | Control the carbohydrate metabolism |
Which of the following contain $\alpha$-D-glucose units?
I. Cane sugar
II. Milk sugar
III. Cellulose
IV. Amylose
Identify the set containing purine and pyrimidine base of DNA respectively.
The structure of the nitrogen containing heterocyclic base given below represents

Observe the following reactions
I. Sucrose $(a q)+\mathrm{H}_2 \mathrm{O} \xrightarrow{x}$ glucose + fructose
II. Glucose $(a q) \xrightarrow{y}$ ethanol $+\mathrm{CO}_2$
What are $x$ and $y$ respectively?
The incorrect statement about amylose is
The improper functioning of ' $X$ ' results in Addison's disease. Hormone ' $Y$ ' is responsible for the development of secondary female characteristics. ' $X$ ' and ' $Y$ ' are respectively
$$ \text { Match List-I with List-II } $$
| List-I (Reaction) |
List-II (Enzyme) |
||
|---|---|---|---|
| A. | Hydrolysis of starch to maltose | I | Diastase |
| B | Chalcogen | II | Pepsin |
| C | Hydrolysis of sucrose to glucose and fructose | III | Invertase |
| D | Glucose to ethanol | IV | Zymase |
Which of the following molecules contain sulphur atom in their structures?
I. Morphine
II. Heroin
III, Penicillin
IV. Terpineol
V. Cimetidine
Given below are two statements.
I. Cytosine and guanine are formed in equal quantities in DNA hydrolysis.
II. Adenine and uracil are formed in equal quantities in RNA hydrolysis.
The correct answer is

Match the following
| List - I (Enzyme) | List - II (Reaction) | ||
|---|---|---|---|
| A. | Invertase | I. | Maltose $$\rightarrow$$ Glucose |
| B. | Pepsin | II. | Sucrose $$\rightarrow$$ Glucose + Fructose |
| C. | Diastase | III. | Proteins $$\rightarrow$$ Peptides |
| IV. | Starch $$\rightarrow$$ Maltose |
Carbohydrates are stored in plants and animals in which of the following forms respectively?
Glycylalanine is a dipeptide of which amino acids?
Pernicious anemia is caused due to deficiency of which vitamin ?
Which of the following vitamins cannot be stored in the body?
Which hormone tends to increase the blood glucose level in human?
Which of the following molecules is eliminated during peptide bond formation?
The human body does not produce
Vitamin-B$$_1$$ is
Assertion (A) An optically active amino acid can exist in three forms depending on the pH of the solution.
Reason (R) Amino acids contain both acidic and basic groups, they exist as Zwitter ion in aq. medium, anionic form in acidic medium and cationic form in basic medium.
Identify the product of the following reaction.

During the action of enzyme ‘zymase’ glucose is converted into .............., with the liberation of carbon dioxide gas.