MCQ on Osmoregulation: Biology is one of the most important and vital sections in NEET. It includes theories, descriptions, discoveries, diagrams, definitions, explanation of differences and relations. Most of the concepts covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12. Other related sources make up for the rest of the syllabus.
In this post we are providing you MCQ on Osmoregulation, which will be beneficial for you in upcoming NEET, AIIMS, JIPMER, PGIMER, CBSE Board, ICSE Board, Class 12th, 11th.
Q1. _______ is not a primary function of protonephridia. (a) excretion
a) excretion
b) osmoregulation
c) fluid volume regulation
d) ionic volume regulation
Q2. Most of the marine invertebrates are _______. (b) Osmoconformers
a) Osmoregulators
b) Osmoconformers
c) both depend on sea water concentration
d) None of the above
Q3. In Paramoecium, osmoregulation is a function of _______. (b) contractile vacuole
a) cytostome
b) contractile vacuole
c) cytopyge
d) trichocysts
Q4. Mechanism of regulation, typically between entities and its environment of solutes and the loss and gain of water is known as _______. (d) Osmoregulation
a) Homeostasis
b) Thermoregulation
c) Hemostasis
d) Osmoregulation
Q5. Kidney matrix retains some quantity of urea to maintain _______. (c) desired osmolarity
a) metabolism
b) micturition
c) desired osmolarity
d) balance of the body
Q6. _______ is used as an osmolyte in humans to increase medullary interstitial osmolality during concentration of urine. (a) Urea
a) Urea
b) TMAO
c) (a) and (b) both
d) Uric acid
Q7. _______ is both osmoregulator and a nitrogenous product. (b) Urea
a) Uric acid
b) Urea
c) NH3
d) All of the above
Q8. Osmoregulators carry out excretion of salt through _______. (a) gills
a) gills
b) fins
c) scales
d) bladder
Q9. A person on a long hunger strike, surviving only on water will have _______. (c) less urea in his urine
a) less amino acids in his urine
b) more sodium in hir urine
c) less urea in his urine
d) more glucose in his blood
Q10. Without restoration, if excess water passes out from the tissues of kidney, the cells would _______. (c) not get affected at all
a) shrivel and die
b) burst open and die
c) not get affected at all
d) take water from plasma
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