Biology Mcqs

Nodules on roots of leguminous plants have __________ bacteria?

• (A)  Anaerobic
• (B)  Nitrogen fixing
• (C)  Nitrifying
• (D)  Ammonifying

Answer

Submitted By :Ali Uppal

Puccinia commonly destroys______________?

• (A)  Corn
• (B)  Tomato
• (C)  Dodder
• (D)  Wheat

Answer

Submitted By :Ali Uppal

One of the commonest cause of food poisoning are the toxins produced by__________?

• (A)  Azobacter
• (B)  Nitrosomonas
• (C)  Campylobacter
• (D)  Nitrobacter

Answer

Submitted By :Ali Uppal

The liquid that escapes during defrosting frozen meat contains _____ bacteria?

• (A)  Campylobacter
• (B)  Nitrobacter
• (C)  Azobacter
• (D)  Salmonella

Answer

Submitted By :Ali Uppal

Stunted growth of roots is due to the deficiency of____________in plants?

• (A)  Potassium
• (B)  Magnesium
• (C)  Phosphorus
• (D)  Iron.

Answer

Submitted By :Ali Uppal

Strong chlorosis is due to the deficiency of _____________ in plants?

• (A)  Magnesium
• (B)  Nitrogen
• (C)  Potassium
• (D)  Phosphorus

Answer

Submitted By :Ali Uppal

In planaria, numerous small branches which end blindly are called as__________?

• (A)  Digestive tract
• (B)  Intestinal caeca
• (C)  Hepatic caeca
• (D)  Both B & C

Answer

Submitted By :Ali Uppal

A painful burning sensation produced in the chest cavity usually associated with the back flush of acidic chyme into the esophagus is__________?

• (A)  Pyrolysis
• (B)  Pyrosis
• (C)  Peristalsis
• (D)  Dyspepsia

Answer

Submitted By :Ali Uppal

Parasites capable of living independently of its host at times is called as ___________ parasite?

• (A)  Obligate
• (B)  Strict
• (C)  Facultative
• (D)  Endoparasite

Answer

Submitted By :Ali Uppal

Hepatic and Pancreatic secretions are also stimulated by a hormone produced by the intestinal mucosa. The hormone is___________?

• (A)  Creatin
• (B)  Gastrin
• (C)  Secretin
• (D)  Pepsin

Answer

Submitted By :Ali Uppal