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MCQOPTIONS
This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1851. |
The intine of a pollen grain is made up of |
| A. | Lignin and suberin |
| B. | Pectin and cellulose |
| C. | Lignin and Hemicellulose |
| D. | Pectin and callose |
| Answer» C. Lignin and Hemicellulose | |
| 1852. |
Unisexual flowers prevent |
| A. | Pollination |
| B. | Breeding |
| C. | Self-pollination |
| D. | Cross fertilization |
| Answer» D. Cross fertilization | |
| 1853. |
Two male gametes are |
| A. | produced before pollination |
| B. | Haploid |
| C. | Diploid |
| D. | At the time of pollination |
| Answer» C. Diploid | |
| 1854. |
The functionof the filiform apparatus is |
| A. | To nourish the pollen grain |
| B. | To guide the entry of pollen tube |
| C. | To develop pollen tube |
| D. | To carry pollen tube through style |
| Answer» C. To develop pollen tube | |
| 1855. |
Secretion of renin from JG cell is due to |
| A. | A fall gloerular blood flow |
| B. | glomerular blood pressure |
| C. | GFR |
| D. | All of these |
| Answer» E. | |
| 1856. |
Presence of excessive ammount urea in blood is known as |
| A. | Uremia |
| B. | Hemeturia |
| C. | Diurea |
| D. | Aniurea |
| Answer» B. Hemeturia | |
| 1857. |
(1) In human being NH3 is convert in urea is liver |
| A. | TFFF |
| B. | TFFT |
| C. | TTFT |
| D. | TTTF |
| Answer» D. TTTF | |
| 1858. |
In given figure represent A.B.C. respectively |
| A. | Cortex, pelvis, ureter |
| B. | Cortex, columnof bertiny, renel pelvis |
| C. | Cortex, renal pelvis, renalvein |
| D. | Cortex, renalpyramid, renal pelvis |
| Answer» C. Cortex, renal pelvis, renalvein | |
| 1859. |
kidney in human being occure in the region of: |
| A. | 10th thoracic and first lumber vertebra |
| B. | 12th thoracic and second lumber vertebra |
| C. | 11th thoracic and third lumber vertebra |
| D. | 9th thoracic and forth lumber vertebra |
| Answer» C. 11th thoracic and third lumber vertebra | |
| 1860. |
Elimination f insoluble calcium phophate takes place by |
| A. | Kidney |
| B. | Liver |
| C. | Lungs |
| D. | Large intestine |
| Answer» E. | |
| 1861. |
Longest loop of henle is found in |
| A. | Kangaroorat |
| B. | Rhesus monkey |
| C. | Dog |
| D. | Frog |
| Answer» B. Rhesus monkey | |
| 1862. |
It is also acivate the adraral cortex to release aldosterone |
| A. | Angiotensin II |
| B. | Adrenal gland |
| C. | Cortisol |
| D. | ADH |
| Answer» B. Adrenal gland | |
| 1863. |
Sweat gland secretion consist of |
| A. | Water, salts, NaCl, Lactic acid |
| B. | Water, salts, NaCl, Fatty acid |
| C. | Water, sterols, fatty acid hydrobarbos |
| D. | Water, sterols, latic acid, NaCl |
| Answer» D. Water, sterols, latic acid, NaCl | |
| 1864. |
Sebaceous glands discharge |
| A. | Water, salts, NaCl, Lactic acid |
| B. | Water, salts, NaCl, Fatty acid |
| C. | Water, sterols, fatty acid hydrobarbos |
| D. | Water, sterols, latic acid, NaCl |
| Answer» C. Water, sterols, fatty acid hydrobarbos | |
| 1865. |
The function of renin is |
| A. | Degradation of angiotensinogen |
| B. | Stimulation of corpus luteum |
| C. | To reduce blood pressure |
| D. | Vasodilation |
| Answer» B. Stimulation of corpus luteum | |
| 1866. |
Presence of blood in urine is known as |
| A. | Glycosuria |
| B. | Aoligourea |
| C. | Hemetourea |
| D. | Kitonurea |
| Answer» D. Kitonurea | |
| 1867. |
It is activated us he change of blood volume and volume of body fluid |
| A. | Medulla oblongata |
| B. | Osmoreceptor |
| C. | Aorta |
| D. | Renal vein |
| Answer» C. Aorta | |
| 1868. |
Main function of uriniferous tubules ( MP PMT 1990) |
| A. | Concentration of urine |
| B. | Passage of urine |
| C. | Reabsorption of useful substances from glomerular filtrate |
| D. | Removal of urea and other waste from blood |
| Answer» B. Passage of urine | |
| 1869. |
Marine teleost fishes excrete |
| A. | Uric acid |
| B. | Ammonia |
| C. | Urea |
| D. | None of these |
| Answer» E. | |
| 1870. |
Column I column II |
| A. | v iii iv ii i |
| B. | v iii ii i iv |
| C. | iv v iii ii i |
| D. | v iii ii iv i |
| Answer» E. | |
| 1871. |
Kidney are |
| A. | Yellowwish brown |
| B. | Reddish brown |
| C. | Greenish yellow |
| D. | Grey in colour |
| Answer» C. Greenish yellow | |
| 1872. |
ADH is secerted by |
| A. | Liver |
| B. | Neurohypophysis |
| C. | Kidney |
| D. | JG cells |
| Answer» C. Kidney | |
| 1873. |
For release of Urine |
| A. | Urinary bTrack contracts |
| B. | Urinary track relaxes |
| C. | Ureter relaxes |
| D. | Ureter contracts |
| Answer» C. Ureter relaxes | |
| 1874. |
Angitensinogen is converted in Angiotensin by |
| A. | dil HCl |
| B. | casein |
| C. | Renin |
| D. | Hippuric acid |
| Answer» D. Hippuric acid | |
| 1875. |
It increases excretion of ca+2 in the kidney |
| A. | Prostaglandin |
| B. | Renin |
| C. | Thyrocalcitonin |
| D. | Angiotensin |
| Answer» D. Angiotensin | |
| 1876. |
In ornithin cycle which of the following waste are removed from the blood? ( PMT 2005) |
| A. | CO2 and urea |
| B. | Ammonia and urea |
| C. | CO2 and ammonia |
| D. | Urea and urine |
| Answer» D. Urea and urine | |
| 1877. |
which one is an accessory excretory organ? (CET chd 2002) |
| A. | Liver |
| B. | Stomach |
| C. | intertine |
| D. | Heart |
| Answer» B. Stomach | |
| 1878. |
Urea is transformed through (AIIMS 2000) |
| A. | RBCS |
| B. | WBCS |
| C. | blood plasma |
| D. | All of above |
| Answer» D. All of above | |
| 1879. |
The net pressure glaient that cause the luid to filler out the glomeruti into thecapsule is (PMT 2005) |
| A. | 50 mm hg |
| B. | 75 mm hg |
| C. | 20 mm hg |
| D. | 30 mm hg |
| Answer» D. 30 mm hg | |
| 1880. |
A person who is oon a long hunger strike and is surving only on water will have (AIPMT 07) |
| A. | Less amino acids in his urine |
| B. | More glucose in this blood |
| C. | Less urea in his urine |
| D. | More sodium in his urine |
| Answer» D. More sodium in his urine | |
| 1881. |
Haemodialysis is also called as artificial: (HarPMT 2002,Kerala 2002) |
| A. | Liver |
| B. | Lung |
| C. | Heart |
| D. | Kidney |
| Answer» E. | |
| 1882. |
Blood which leaves liver and pases towardds heart has higher concentrattion of (BHU 1999) |
| A. | Bile |
| B. | Oxygen |
| C. | RBCS |
| D. | Urea |
| Answer» E. | |
| 1883. |
A person underoing protonged fsting his urine will be ound to contain abnormal quantities of (MP PMT 2005) |
| A. | Fats |
| B. | Ammino acid |
| C. | Glucose |
| D. | Ketones |
| Answer» E. | |
| 1884. |
The principal nitrogenous excretory compound in human is synthesised (AIIPMT 2010) |
| A. | In kidney but eliminted mostly though liver |
| B. | In kidney as well as eliminated by kidneys |
| C. | In the liver but eliminated mostly kidneys |
| D. | In the liver and also eliminated mostly by the same bile |
| Answer» D. In the liver and also eliminated mostly by the same bile | |
| 1885. |
Which hormone influence the activity of kidney? ( BHV 1996) |
| A. | Vasopression |
| B. | Thyoxine |
| C. | Vasopression & aldosterone |
| D. | Gonadotrophin |
| Answer» D. Gonadotrophin | |
| 1886. |
Glucose is reabsorbed from glomerular filterate though (CBSE 1993) |
| A. | Active transport |
| B. | Passive transport |
| C. | Osmosis |
| D. | Difusion |
| Answer» B. Passive transport | |
| 1887. |
Part not belonging to urinferous tubule is (CBSE 1994) |
| A. | Glomerules |
| B. | Henle’s loop |
| C. | Distal convoluted tuble |
| D. | Connecting tubule |
| Answer» E. | |
| 1888. |
Excretory product of birds and raptiles is (CPMT 1998) |
| A. | Urea |
| B. | Uric acid |
| C. | Ammonia |
| D. | Creatinin |
| Answer» C. Ammonia | |
| 1889. |
Which are of the following is not a part of a renal pyramid? |
| A. | Peritubular capilariers |
| B. | Conoluted tubules |
| C. | Collecting ducts |
| D. | Loop of Henle’s |
| Answer» C. Collecting ducts | |
| 1890. |
The mechnism of urine foundation nephrone involves (CPMT 1992) |
| A. | Utrafication |
| B. | Secretion |
| C. | Reabsorption |
| D. | All of above |
| Answer» E. | |
| 1891. |
Which blood vessel takes blood away from kidney? (DPMT 1996) |
| A. | Renal portal vein |
| B. | Renal vein |
| C. | Afferent arteiote |
| D. | Efferent artribute |
| Answer» C. Afferent arteiote | |
| 1892. |
the two kidneys lie: (MP PMT 1995) |
| A. | At the level of ovaries |
| B. | At the same level |
| C. | Left kidney at a higher level than the ight one |
| D. | Right kidney at a higher level than the left one |
| Answer» D. Right kidney at a higher level than the left one | |
| 1893. |
Uric acid is the chief nitrogenous component of the excretory product of (AIIPMT 2009) |
| A. | Earthwarm |
| B. | Cockroach |
| C. | Frog |
| D. | Man |
| Answer» C. Frog | |
| 1894. |
What will happen if the stretch receptor of the urinary bladder wall are totally removed ? |
| A. | Micturition will continue |
| B. | Urine will continue to collect normally in the bladder |
| C. | These will be no nicturition |
| D. | Urine will not collect in the bladder |
| Answer» E. | |
| 1895. |
Which hormone induced the process of reabsorption from glomerouous? (JKCMME 92) |
| A. | Oxytosin |
| B. | Vasopression |
| C. | Relkgin |
| D. | Calsitonin |
| Answer» C. Relkgin | |
| 1896. |
NA+ and Cl- are absorbed in kidney in the region of |
| A. | Ascending limb of henel’s loop |
| B. | decending limb of henel’s loop |
| C. | DCT |
| D. | PCT |
| Answer» B. decending limb of henel’s loop | |
| 1897. |
Which one of the following statement is impereble to water |
| A. | Descending limb of loop of henle is impereable to water |
| B. | DCT is incapable of reabsorbing HCO3 |
| C. | Nearly 99% of the glomerular filterate is reasorbed by the renal tubules |
| D. | Ascending limb of loop of henle is impereable to water |
| Answer» D. Ascending limb of loop of henle is impereable to water | |
| 1898. |
uricotelic mode of excreting nitrogenous waste is found in (AIIPMT 2011) |
| A. | Reptiles and birds |
| B. | Birds and annelids |
| C. | Amphibianls and reptiles |
| D. | Insects and amphibians |
| Answer» B. Birds and annelids | |
| 1899. |
Haemodialysis helps the paitent having (JIPMER 2004) |
| A. | Goitre |
| B. | Anaemia |
| C. | Uremia |
| D. | Diabetes |
| Answer» D. Diabetes | |
| 1900. |
A fall in glemerular filtration rate (GFR) (AIIPMT 2012) |
| A. | Juxtaglomerular alls to realase remin |
| B. | Adrenal cortex to release aldosterone |
| C. | Adrenal medulla to release adernaline |
| D. | Dosterior pituitary to release ADH |
| Answer» B. Adrenal cortex to release aldosterone | |