PYQSidePowered byPrepblink ExamsMy practice

Biomolecules

JEE Main 2024 (Online) 4th April Morning ShiftMCQEasy📈 Topic in 25% papers+4−1
Ques. 1JEE Main 2024, 4 April (Morning Shift)

Which of the following is the correct structure of L-Glucose?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]

Answer

(4) [figure]

Solution

L-Glucose is the mirror image of D-glucose ⇒ every –OH changes side.

[figure]

L-glucose: –OH at C2 left, C3 right, C4 left, C5 left

(A): C2 right, C3 left, C4 right ⇒ (A) is not L-glucose

(B): all four –OH left ⇒ (B) is not glucose

(C): C4, C5 –OH right ⇒ (C) is not L-glucose

(D): left, right, left, left ⇒ (D) is L-glucose

Answer: (4)

Keep practising — Biomolecules

Ques. 2JEE Main 2024, 4 April (Evening Shift)

Match List I with List II Choose the correct answer from the options given below:

  1. A-III, B-IV, C-II, D-I
  2. A-IV, B-III, C-I, D-II
  3. A-III, B-IV, C-I, D-II
  4. A-IV, B-III, C-II, D-I
Ques. 3JEE Main 2024, 1 February (Morning Shift)

If one strand of a DNA has the sequence ATGCTTCA, sequence of the bases in complementary strand is :

  1. CATTAGCT
  2. TACGAAGT
  3. ATGCGACT
  4. GTACTTAC
Ques. 4JEE Main 2024, 1 February (Evening Shift)

The number of tripeptides formed by three different amino acids using each amino acid once is .

Ques. 5JEE Main 2024, 31 January (Morning Shift)

Match List I with List II

  1. A-II, B-IV, C-III, D-I
  2. A-III, B-II, C-I, D-IV
  3. A-IV, B-I, C-III, D-II
  4. A-I, B-IV, C-III, D-II
Ques. 6JEE Main 2024, 31 January (Evening Shift)

From the vitamins A, B1, B6, B12, C, D, E and K, the number of vitamins that can be stored in our body is .

Ques. 7JEE Main 2024, 30 January (Morning Shift)

Sugar which does not give reddish brown precipitate with Fehling's reagent, is :

  1. Glucose
  2. Sucrose
  3. Lactose
  4. Maltose
Ques. 8JEE Main 2024, 30 January (Evening Shift)

The total number of correct statements, regarding the nucleic acids is . A. RNA is regarded as the reserve of genetic information B. DNA molecule self-duplicates during cell division C. DNA synthesizes proteins in the cell D. The message for the synthesis of particular proteins is present in DNA E. Identical DNA strands are transferred to daughter cells.

Ques. 9JEE Main 2024, 29 January (Morning Shift)

Type of amino acids obtained by hydrolysis of proteins is :

Ques. 10JEE Main 2024, 29 January (Evening Shift)

Match List I with List II Choose the correct answer from the options given below:

  1. A-IV, B-II, C-I, D-III
  2. A-I, B-III, C-IV, D-II
  3. A-II, B-I, C-III, D-IV
  4. A-II, B-III, C-I, D-IV
Ques. 11JEE Main 2024, 27 January (Morning Shift)

Two nucleotides are joined together by a linkage known as :

  1. Phosphodiester linkage
  2. Glycosidic linkage
  3. Disulphide linkage
  4. Peptide linkage

All Biomolecules PYQs →

PDFDownload Biomolecules PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
All JEE Main Chemistry chapters