Biology Mcqs

Animals that produce metabolic heat at low level and also absorb heat from the surroundings are called__________?

• (A)  Endotherms
• (B)  Ectotherms
• (C)  Heterotherms
• (D)  Homeotherms

Answer

Submitted By :Ali Uppal

On which of the following site the posterior pituitary hormone acts predominantly?

• (A)  Proximal convoluted tubule
• (B)  Descending limb of loop of Henle
• (C)  Ascending limb of loop of Henle
• (D)  Collecting tubules

Answer

Submitted By :Ali Uppal

Each human kidney receives _______% of total cardiac out put?

• (A)  10%
• (B)  20%
• (C)  30%
• (D)  40%

Answer

Submitted By :Ali Uppal

Excessive lactic acid is converted into __________ by liver?

• (A)  Glucose
• (B)  Fructose
• (C)  Sucrose
• (D)  Glycogen

Answer

Submitted By :Ali Uppal

Which of the following is a sentimentally arranged excretory system?

• (A)  Protonephridium
• (B)  Metanephridium
• (C)  Malpighian tubules
• (D)  Nephrons

Answer

Submitted By :Ali Uppal

The distal blind end of the malpighian tubules bathes freely in____________?

• (A)  Digestive tract
• (B)  Intestines
• (C)  Haemocoel
• (D)  Coelom

Answer

Submitted By :Ali Uppal

Hydra has no specialized excretory system because:

• (A)  It does not produce waste material
• (B)  Due to absence of mesoderm
• (C)  The whole body cells are in contact with water
• (D)  It has pseudocoelom.

Answer

Submitted By :Ali Uppal

In animals excess of nitrogen is excreted primarily in form of___________?

• (A)  Creatinine
• (B)  Trimethyamine oxide
• (C)  Pyrimidine
• (D)  Ammonia

Answer

Submitted By :Ali Uppal

In plants, which of the following is a waste product produced both during photosynthesis and respiration?

• (A)  CO2
• (B)  H2O
• (C)  O2
• (D)  Both A and B

Answer

Submitted By :Ali Uppal

Which of the following treatment will be administered first in a newly diagnosed renal failure patient?

• (A)  Renal transplant
• (B)  Peritoneal Dialysis
• (C)  Lithotripsy
• (D)  Hemodialysis

Answer

Submitted By :Ali Uppal