List of top Physical Sciences Questions on Biochemistry

Compounds having common ion but different solubility constants can be separated by ------

Atomic spectrum is an example of

Match List-I with List-II

Choose the correct answer from the options given below:

Which of the following Atomic Absorption Spectrometers is used for determination of mercury?

Match List-I with List-II
{|p{7cm}|p{7cm}|} List-I (Column A) & List-II (Colums B)
(A) DNA is found at the end of the linear eukaryotic chromosome & (I) Centromere
(B) Protein structure on eukaryotic chromosomes where spindle fiber attaches & (II) Telomere
(C) DNA site where kinetochores are found & (III) Nucleolar organizer
(D) DNA sequence that serves as the template for synthesis and amplification & (IV) Kinetochore

Choose the correct answer from the options given below :
(A) Enzymes enhance reaction rate by a factor of 2 to 10.
(B) Activation energy of a reaction is lowered by enzymes.
(C) Interactions between enzymes and substrates are hydrogen, ionic and hydrophobic bonds.
(D) Substrate concentration does not affect the rate of enzyme-catalyzed reactions.

Which of the following is an imino acid

Which of the following statement is incorrect :

What type of covalent bonds link the amino acids in a protein ?

Mutations are errors in DNA that :

Match List-I with List-II
{|p{7cm}|p{7cm}|} List-I (Column A) & List-II (Column B)
(A) n-hexadecanaic acid & (I) Watson and Crick
(B) Secondary amino group & (II) Proline
(C) Double helical DNA & (III) Palmitic acid
(D) Enantiomer & (IV) Optical isomer

Arrange the following carbohydrate molecules in the increasing molecular weights :
(A) Starch
(B) Sucrose
(C) Glucose
(D) Amylopectin
Choose the correct answer from the options given below :

Arrange the following amino acids on the basis of increasing side chain size
(A) Alanine
(B) Glycine
(C) Isoleucine
(D) Leucine
Choose the correct answer from the options given below :

When the benzene ring is a substitution in a molecule, it is known as :

What is the common formula for the alkanes ?

What is the common name of Butan-1-ol ?

Estimating the colored complex with chelating agent is _______________.

Mass of sample in picogram method is _________ gram.

When the original value of N in urea is 46% and the estimated value is 5 %,then the relative error is _________ %.

_________ is the determination of one or few constituents from the sample.

Error in measurement caused by factors which vary with measurements is _________.

What is the average life of a radioactive element whose half-life is 30 days ?

Match List-I with List-II
{|p{7cm}|p{7cm}|} List-I (Element) & List-II (Electronic Configuration)
(A) Mg & (I) 2, 1
(B) Na & (II) 2, 8, 7
(C) Li & (III) 2, 8, 1
(D) Cl & (IV) 2, 8, 2

Water has Maximum density at temperature

Organo mercurial compounds are