Define denaturation of protein.

Important Questions on Biomolecules

MEDIUM

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 14 - Biomolecules>Chapter Practice>Q 29

Write the four characteristic features of enzymes.

MEDIUM

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 14 - Biomolecules>Chapter Practice>Q 29

Name a disease which is caused by the deficiency of a particular enzyme.

MEDIUM

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 14 - Biomolecules>Chapter Practice>Q 30

Which vitamin is concerned with antisterility?

EASY

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 14 - Biomolecules>Chapter Practice>Q 30

 Write the chemical name of ${\mathrm{B}}_1$ and name the disease caused by its deficiency.
 

MEDIUM

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 14 - Biomolecules>Chapter Practice>Q 31

Explain the role of nucleic acids in replication.

MEDIUM

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 14 - Biomolecules>Chapter Practice>Q 31

Name the types of bases in nucleotides of RNA.

HARD

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 14 - Biomolecules>Chapter Practice>Q 32

A compound A$\left({\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6\right)$ is oxidised by bromine water into monobasic acid. It also reduces Tollen's reagent and reacts with $\mathrm{HCN}$ to give a compound B which on hydrolysis gives a compound C. On treating C with $\mathrm{HI}$ / red $\mathrm{P}$, n-heptanoic acid is obtained. Compound A on treatment with excess phenyl hydrazine gave D-glucosazone. Name the compound A and draw its cyclic form.