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Biology 1525 MCQs [All-Courses]

Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

Which of the following animal excrete nitrogenous waste mainly as uric acid?

A Hydra

B Planaria.

C Humans

D Birds.

Review Detailed Answer

Correct Answer: Birds.

Thick, waxy & leathery cuticle around leaves is present in___________?

A Hydrophytes

B Mesophytes

C Xerophytes

D Halophytes

Review Detailed Answer

Correct Answer: Xerophytes

Bats & humming birds belong to___________?

A Endotherms

B Ectotherms

C Heterotherms

D Homeotherms

Review Detailed Answer

Correct Answer: Heterotherms

A stone measuring 0.4 cm, blocking the outlet of renal pelvis resulting in mild to moderate tract obstruction. Which of the following technique will be opted to remove this stone?

A Kidney surgery

B Burring a hole and removing the stone manually (nephrolithotomy)

C Extracorporeal Shock wave lithotripsy

D None of these

Review Detailed Answer

Correct Answer: Extracorporeal Shock wave lithotripsy

Which of the vascular channels are related to Juxtramedullary nephrous only?

A Afferent and efferent arterioles

B Peritubualr capillaries

C Vasa nervosa

D Vasa recta

Review Detailed Answer

Correct Answer: Vasa recta

In Urea cycle __________ ammonia molecules combine with 1 CO2 molecule to form 1 molecule of urea.

A 1

B 2

C 3

D 4

Review Detailed Answer

Correct Answer: 2

Which of the following is most toxic?

A Ammonia

B Urea

C Uric acid

D Trimethylamine oxide

Review Detailed Answer

Correct Answer: Ammonia

In osmosis water molecules move from area of _____________ through semipermeable memberane?

A Higher solute concentration to lower solute concentration

B Lower solute concentration to higher solute concentration

C Lower solvent concentration to higher solvent concentration

D All of these

Review Detailed Answer

Correct Answer: Lower solute concentration to higher solute concentration

Normal body temperature in mamals like human beings is____________?

A 26 – 28°C

B 36 – 38°C

C 46 – 48°C

D 56 – 58°C

Review Detailed Answer

Correct Answer: 36 – 38°C

Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss?

A Hagfish

B Fresh water fishes

C Bony fishes

D None of these

Review Detailed Answer

Correct Answer: Bony fishes

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Biology 1525 MCQs [All-Courses]

All Topics 1525

All Topics 1525

Which of the following animal excrete nitrogenous waste mainly as uric acid?

Thick, waxy & leathery cuticle around leaves is present in___________?

Bats & humming birds belong to___________?

A stone measuring 0.4 cm, blocking the outlet of renal pelvis resulting in mild to moderate tract obstruction. Which of the following technique will be opted to remove this stone?

Which of the vascular channels are related to Juxtramedullary nephrous only?

In Urea cycle __________ ammonia molecules combine with 1 CO2 molecule to form 1 molecule of urea.

Which of the following is most toxic?

In osmosis water molecules move from area of _____________ through semipermeable memberane?

Normal body temperature in mamals like human beings is____________?

Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss?