Biomolecules · Chemistry · KCET

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MCQ (Single Correct Answer)

1

Match List-I with List-II for the following reaction pattern

Glucose $\xrightarrow{\text { Reagent }}$ Product $\longrightarrow$ Structural prediction

List - I (Reagents) List-II (Structural prediction)
a. Acetic anhydride i. Glucose has an aldehyde group
b. Bromine water ii. Glucose has a straight chain of six carbon atoms
c. Hydroiodic acid iii. Glucose has five hydroxyl group
d. Hydrogen cyanide iv. Glucose has a carbonyl group
$$ \text { Choose the correct answer from the options given below. } $$
KCET 2025
2

The correct sequence of $\alpha$-amino acids, hormone, vitamin, carbohydrates respectively is

KCET 2025
3
Which examples of carbohydrates exhibit $\alpha-$ link, ( $\alpha-$ glycosidic link) in their structure?
KCET 2025
4

The type of linkage present between nucleotides is

KCET 2024
5

$\alpha-D-(+)$-glucose and $\beta-D-(+)$-glucose are

KCET 2024
6

The female sex hormone which is responsible for the development of secondary female characteristics and participates in the control of menstrual cycle is

KCET 2024
7

Sucrose is dextrorotatory but after hydrolysis the mixture show laevorotation, this is because of

KCET 2023
8

The correct order of match between column X and column Y is

X Y
I. Vitamin A i. Muscular weakness
II. Vitamin D ii. Increased blood clotting time
III. Vitamin E iii. Night-blindness
IV. Vitamin K iv. Osteomalacia

KCET 2023
9

Thyroxine produced in the thyroid gland is an iodinated derivative of

KCET 2023
10

Receptors are proteins and crucial to body communication process. These receptors are embedded in

KCET 2023
11

A nucleic acid, whether DNA or RNA gives on complete hydrolysis, two purine bases, two pyrimidine bases, a pentose sugar and phosphoric acid. Nucleotides which are intermediate products in the hydrolysis contain

KCET 2022
12

RNA and DNA are chiral molecules, their chirality is due to the presence of

KCET 2021
13

Primary structure in a nucleic acid contain 3 bases as GATGC ... The chain which is complementary to this chain is

KCET 2021
14

Which one of the following vitamins is not stored in adipose tissue?

KCET 2020
15

Hypothyroidism is caused by the deficiency of

KCET 2020
16

$$\mathrm{C}_1-\mathrm{C}_4$$ glycosidic bond is not found in

KCET 2020
17

The vitamin that helps in clotting of blood is

KCET 2019
18

In nucleic acids, the nucleotides are joined together by

KCET 2019
19

Which of the following is generally water insoluble?

KCET 2019
20
Which of the following bases is not present in DNA?
KCET 2018
21
The glycosidic linkage involved in linking the glucose units in amylase part of starch is
KCET 2018
22
The glycosidic linkage present in sucrose is between
KCET 2017
23
Hormones are secreted by ductless glands of human body. Iodine containing hormone is
KCET 2017
24
Pick the wrong statements from the following.
KCET 2017
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