Biology MCQs
Biology MCQs Test Preparation | Latest 2025 Quiz FPSC, NTS, KPPSC, PPSC, SPSC, BPSC, OTS, UTS, PTS, CTS, ATS, ETEA MCQs Test Questions.
Which of the following statement about conifers is correct?
A: Stored excretory products in vacuoles, at a concentration that leads to crystal formation.
B: Accumulate waste in leaves, which fall in autumn.
C: Production of black wood in the center.
D: Excrete some of the waste materials directly into soil, occasionally using them as a chemical weapon against other competing plants.
Excrete some of the waste materials directly into soil, occasionally using them as a chemical weapon against other competing plants.
Purine and pyrimidine metabolism results in production of____________?
A: Creatinine
B: Trimethyamine oxide
C: Xanthine
D: None of these
Xanthine
Amount of water required to excrete 1gN of Urea is_________?
A: 1 ml
B: 50 ml
C: 100 ml
D: 150 ml
50 ml
Each ach nephridium of earthworm opens to the exterior by__________?
A: Nephrostome
B: Nephridiopore
C: Flame cell
D: Anus
Nephridiopore
The main nitrogenous waste formed in the body of earthworm is/are___________?
A: Ammonia
B: Urea
C: Uric acid
D: Trimethylamine oxide
Urea
Which of the following excretory structure is associated with gut of the organism?
A: Protonephridium
B: Metanephridium
C: Malpighian tubules
D: Nephrons
Malpighian tubules
Which of the following nephrons play important role in production of concentrated urine?
A: Crotical
B: Medullary
C: Juxtramedullary
D: None of these
Juxtramedullary
Which of the following kidney stones are most common?
A: Calcium oxalate
B: Calcium phosphate
C: Uric acid
D: All of these
Calcium oxalate
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
Hemodialysis
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
H2O