The Principal Nitrogenous Excretory Compound In Humans Is Synthesised?
a) In the liver but eliminated mostly through kidneys b) In kidneys as well as eliminated by kidneys c) In... View Article
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Carrier Ions Like Na+ Facilitate The Absorption Of Substances Like?
a) Fructose and some amino acids b) Glucose and fatty acids c) Fatty acids and glycerol d) Amino acids and... View Article
Cu Ions Released From Copper- Releasing Intrauterine Devices (IUDs)?
a) Make uterus unsuitable for implantation b) Increase phagocytosis sperms c) Prevent ovulation d) Suppress sperm motility Answer: d) Suppress... View Article
The Nerve Centres Which Control The Body Temperature And The Urge For Eating Are Contained In?
a) Pons b) Hypothalamus c) Cerebellum d) Thalamus Answer: b) Hypothalamus Explanation: Hypothalamus is the thermoregulatory centre having the thirst... View Article
If For Some Reason Our Goblet Cells Are Non-functional This Will Adversely Affect?
a) Smooth movement of food down the intestine b) Maturation of sperms c) Secretion of sebum from the sebaceous glands... View Article
Low Ca++ In The Body Fluid May Be The Cause Of?
a) Anaemia b) Tetany c) Angina pectoris d) Gout Answer: b) Tetany Tetany is rapid spasms in the muscle as... View Article
If Due To Some Injury The Chordae Tendinae Of The Tricuspid Valve Of The Human Heart Is Partially Non-functional, What Will Be The Immediate Effect?
a) The flow of blood into the pulmonary artery will be reduced b) The blood will tend to flow back... View Article
Photoperiodism Was First Characterised In?
a) Potato b) Tobacco c) Tomato d) Cotton Answer: b) Tobacco
PGA As The First Co2 Fixation Product Was Discovered In Photosynthesis Of?
a) Alga b) Angiosperm c) Gymnosperm d) Bryophyte Answer: a) Alga
One Of The Free-living Anaerobic Nitrogen-fixer Is?
a) Rhizobium b) Azotobacter c) Rhodospirillum d) Beijernickia Answer: c) Rhodospirillum Explanation: Others are aerobic nitrogen fixers.
Keel Is Characteristic Of The Flowers Of?
a) Bean b) Cassia c) Calotropis d) Gulmohur Answer: a) Bean
Heartwood Differs From Sapwood In?
a) Absence of vessels and parenchyma b) Presence of rays and fibres c) Being susceptible to pests and pathogens d)... View Article
Ovary Is Half-inferior In The Flowers Of?
a) Guava b) Brinjal c) Plum d) Cucumber Answer: c) Plum
The Technical Term Used For The Androecium In A Flower Of China Rose (Hibiscus Rosa Sinensis) Is?
a) Diadelphous b) Monadelphous c) Polyandrous d) Polyadelphous Answer: b) Monadelphous Explanation: The China rose family depicts the cohesion of... View Article
The Chief Water Conducting Elements Of Xylem In Gymnosperms Are?
a) Tracheids b) Fibers c) Transfusion tissue d) Vessels Answer: a) Tracheids Explanation: In gymnosperms and pteridophytes, vessels are absent.
C4 Plants Are More Efficient In Photosynthesis Than C3 Plants Due To?
a) Higher leaf area b) Presence of thin cuticle c) Presence of larger number of chloroplasts in the leaf cells... View Article
An Element Playing Important Role In Nitrogen Fixation Is?
a) Zinc b) Molybdenum c) Copper d) Manganese Answer: b) Molybdenum
Which One Of The Following Is Not A Micronutrient?
a) Zinc b) Boron c) Magnesium d) Molybdenum Answer: c) Magnesium Mg is macronutrient.
The Scutellum Observed In A Grain Of Wheat Or Maize Is Comparable To Which Part Of The Seed In Other Monocotyledons?
a) Endosperm b) Cotyledon c) Aleurone layer d) Plumule Answer: b) Cotyledon
Darwin’s Finches Are A Good Example Of?
a) Connecting link b) Industrial melanism c) Convergent evolution d) Adaptive radiation Answer: d) Adaptive radiation
