Biology Mcqs

Total number of amino acids in a hemoglobin molecule are__________?

• (A)  554
• (B)  564
• (C)  574
• (D)  584

Answer

Submitted By :Ali Uppal

A bond formed by linkage between -OH of carboxyl group of one amino acid and H of amino group of another amino acid which releases water is called__________?

• (A)  Phosphodiester linkage
• (B)  Glycosidic bond
• (C)  Peptide bond
• (D)  Hydrogen bond

Answer

Submitted By :Ali Uppal

The windpipe or trachea lies?

• (A)  Dorsal to oesophagus
• (B)  Ventral to oesophagus
• (C)  Lateral to oesophagus
• (D)  None of these

Answer

Submitted By :Ali Uppal

An insulin molecule consists of _________ polypeptide chains?

• (A)  1
• (B)  2
• (C)  3
• (D)  4

Answer

Submitted By :Ali Uppal

The major constituent of blood plasma is___________?

• (A)  Protein
• (B)  NaCl
• (C)  Water
• (D)  Cholesterol

Answer

Submitted By :Ali Uppal

Total number of amino acids discovered so far in cells and tissues are______________?

• (A)  20
• (B)  25
• (C)  150
• (D)  170

Answer

Submitted By :Ali Uppal

Hunger pangs usually begin ______ after the previous meal.

• (A)  2-4 hours
• (B)  6-8 hours
• (C)  10-12 hours
• (D)  12-24 hours

Answer

Submitted By :Ali Uppal

Which structural organization is most common in globular proteins____________?

• (A)  Primary
• (B)  Secondary
• (C)  Tertiary
• (D)  Quaternary

Answer

Submitted By :Ali Uppal

Amphoixus is a__________?

• (A)  Chordate
• (B)  Protochordate
• (C)  Lower chordate
• (D)  All of these

Answer

Submitted By :Ali Uppal

The simplest of oxygen producting photosynthetic organisms are____________?

• (A)  Algae
• (B)  Bacteria
• (C)  Cyanobacteria
• (D)  Chlamydomonas

Answer

Submitted By :Ali Uppal