Biomolecules practice · Medium

You are studying a bacteriophage and found its composition to be A = 22%, T = 28%, G = 20%, C = 30%. What is your conclusion regarding its genetic material?

Feedback inhibition of enzymes is affected by which of the following?

The globular proteins undergo structural changes, in response to extremes of pH or temperature, the process called

The pitch of DNA molecule is?

Assertion: All enzymes are protein
Reason: RNA can’t act as enzyme

A competitive inhibitor, competes with the substrate, for the substrate binding site of enzymes due to its

Which one of the following statements is wrong?

DNA and RNA, both are types of nucleic acid. Figure out the correct statements concerning DNA and RNA from below.
I. Adenine and guanine are bases that have a double ring structure.
II. An adenine nucleotide from DNA is the same as an adenine nucleotide from RNA; in DNA, adenine pairs with thymine and in RNA adenine pairs with uracil.
III. The base pairing that occurs in a double DNA helix and when RNA is synthesised during transcription, it follows the rule that a purine pairs with a pyrimidine.
IV. The two polynucleotide strands of a DNA molecule run in opposite directions so that the double helix formed has two strands that are parallel to each other.

Select the correct which represents the homopolysaccharides made up of glucose monomers

If the DNA of a zygote has adenine, thymine in the gametic DNA is

Select the incorrect statement.

Which of the following are not polymeric?

Cellulose is made up of

Name the plant pigments present in the following I. Carrots II. Tomatoes

Aminoacids, as the name suggests, have both an amino group
and a carboxyl group in their structure. In addition, all naturally
occurring aminoacids (those which are found in proteins) are
called L-aminoacids. From this, can you guess from which
compound can the simplest aminoacid be made?

How many Nucleotides are present in 170 ${A^ \circ }$ length of DNA

Glycosidic bond is seen in

For a protein to have a quaternary structure, it must

A typical fat molecules is made up of:

Following are the statements with reference to lipids. Pick the correct pair
I. Lipids having single bonds are unsaturated fatty acids
II. Lecithin is phospho lipid present in plasma membrane
III. Glycerol is chemically trihydroxypropane
IV. Palmitic acid contain 20 carbons including carboxyl group

Statement-I : Starch $-\mathrm{I}_2$ is blue as starch can hold $\mathrm{I}_2$ molecules but cellulose cannot hold $\mathrm{I}_2$

Statement-II : Starch is a homopolymer whereas cellulose is a heteropolymer

Enzyme often have additional parts in their structures that are made up of molecules other than proteins. When this additional chemical part is an organic molecule, it is called