Biology Mcqs

The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called:

• (A)  An organ
• (B)  A molecule
• (C)  Tissue
• (D)  Both a and c

Answer

Submitted By :Ali Uppal

Oxygen accounts for ____ % of totals human body mass?

• (A)  65%
• (B)  18%
• (C)  10%
• (D)  3%

Answer

Submitted By :Ali Uppal

___________ are needed as a source of energy for the vital activities of the body?

• (A)  Calcium
• (B)  Iron
• (C)  Water
• (D)  Carbohydrates

Answer

Submitted By :Ali Uppal

Out of 92 naturally occurring chemical elements how many are considered as bio-elements?

• (A)  6
• (B)  16
• (C)  26
• (D)  15

Answer

Submitted By :Ali Uppal

__________ is essential for the formation of hemoglobin.

• (A)  Calcium
• (B)  Iron
• (C)  Water
• (D)  Carbohydrates

Answer

Submitted By :Ali Uppal

The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called ?

• (A)  Environmental biology
• (B)  Social biology
• (C)  Human biology
• (D)  Both b and c

Answer

Submitted By :Ali Uppal

Blood is carried towards the heart by __________?

• (A)  Arteries
• (B)  Capillaries
• (C)  Veins
• (D)  none of these

Answer

Submitted By :Ali Uppal

Sythetic insulin from pork was formed by which technique?

• (A)  Biotechnology
• (B)  Social biological techniques
• (C)  Parasitology
• (D)  Both a and c

Answer

Submitted By :Ali Uppal

On wound __________ fight foreign particles, like bacteria?

• (A)  White Blood cells
• (B)  Red Blood Cells
• (C)  Platelets
• (D)  Plasma

Answer

Submitted By :Ali Uppal

The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by ?

• (A)  Molecular biologists
• (B)  Microbiologists
• (C)  Freshwater biologists
• (D)  Social biologist

Answer

Submitted By :Ali Uppal