Biology Mcqs

Which of the following is the empirical formula of chlorophyll b?

• (A)  C55H70O5N4Mg
• (B)  C55H72O6N4Mg
• (C)  C55H70O6N4Mg
• (D)  C55H72O5N4Mg

Answer

Submitted By :Ali Uppal

Proteins are polymers of___________?

• (A)  Fatty acids
• (B)  Isoprenoid units
• (C)  Amino acids
• (D)  Nucleotides

Answer

Submitted By :Ali Uppal

Following possess bilateral symmetry as larva and radial symmetry as adult:

• (A)  Chordata
• (B)  Hydra
• (C)  Echinodermata
• (D)  Hemichordata

Answer

Submitted By :Ali Uppal

Chemical component/s less in eukaryotic cell as compared to prokaryotic cell is / are (i) lipids (ii) carbodydrates (iii) proteins (iv) DNA_________________?

• (A)  i & ii
• (B)  iii & iv
• (C)  i ii iii & iv
• (D)  iv only

Answer

Submitted By :Ali Uppal

Adult birds normally possess only one functional____________?

• (A)  Ureter
• (B)  Ovary
• (C)  Lung
• (D)  Testis

Answer

Submitted By :Ali Uppal

Proteins comprise of ___________% of the total dry weight of a cell?

• (A)  40%
• (B)  50%
• (C)  60%
• (D)  70%

Answer

Submitted By :Ali Uppal

Double fertilization occurs in_________?

• (A)  All plants
• (B)  All seed plants
• (C)  Gymnosperms
• (D)  Angiosperms

Answer

Submitted By :Ali Uppal

Hemoglobin molecule exhibits which structural organization of proteins___________?

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

Answer

Submitted By :Ali Uppal

Locomotory structures are not found in which of the following group?

• (A)  Amoebas
• (B)  Zooflagellates
• (C)  Ciliates
• (D)  Apicomplexans

Answer

Submitted By :Ali Uppal

Which structure of protein gives information aboutnumber and sequence of amino acids in it_______________?

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

Answer

Submitted By :Ali Uppal