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Grass Leaves Curl Inwards During Very Dry Weather. Select The Most Appropriate Reason From The Following?

(1) Closure of stomata (2) Flaccidity of bulliform cells (3) Shrinkage of air spaces in spongy mesophyll (4) Tyloses in vessels Answer: (2)... View Article

Colostrum The Yellowish Fluid, Secreted By Mother During The Initial Days Of Lactation Is Very Essential To Impart Immunity To The NewBorn Infants Because It Contains?

(1) Natural killer cells (2) Monocytes (3) Macrophages (4) Immunoglobulin A Answer: (4) Further Reading: List of 25 Important Topics in... View Article

Match The Following Structures With Their Respective Location In Organs?

(a) Crypts of Lieberkuhn (i) Pancreas (b) Glisson's Capsule (ii) Duodenum (c) Islets of Langerhans (iii) Small intestine (d) Brunner's Glands... View Article

The Correct Order Of The Basic Strength Of Methyl Substituted Amines In Aqueous Solution Is?

(1) (CH3)2NH > CH3NH2 > (CH3)3N (2) (CH3)3N > CH3NH2 > (CH3)2NH (3) (CH3)3N > (CH3)2NH > CH3NH2 (4) CH3NH2 > (CH3)2NH >... View Article

Which One Is Malachite From The Following?

(1) CuFeS2 (2) Cu(OH)2 (3) Fe3O4 (4) CuCO3.Cu(OH)2 Answer: (4) Further Reading: List of 25 Important Topics in Biology for Competitive Exams... View Article

The Method Used To Remove Temporary Hardness Of Water Is?

(1) Calgon's method (2) Clark's method (3) Ion-exchange method (4) Synthetic resins method Answer: (2) Further Reading: List of 25 Important... View Article

Which Of The Following Series Of Transitions In The Spectrum Of Hydrogen Atom Falls In Visible Region?

(1) Lyman series (2) Balmer series (3) Paschen series (4) Brackett series Answer: (2) Further Reading: List of 25 Important Topics in Biology... View Article

The Manganate And Permanganate Ions Are Tetrahedral Due To :

(1) The pi-bonding involves overlap of p-orbitals of oxygen with d-orbitals of manganese (2) There is no pi -bonding (3) The pi-bonding involves... View Article

Among The Following, The Narrow Spectrum Antibiotic Is?

(1) Penicillin G (2) Ampicillin (3) Amoxicillin (4) Chloramphenicol Answer: (1) Further Reading: List of 25 Important Topics in Biology for... View Article

Conjugate Base For Bronsted Acids H2o And Hf Are :

(1) OH– and H2F+, respectively (2) H3O+ and F–, respectively (3) OH– and F–, respectively (4) H3O+ and H2F+, respectively... View Article

Which Of The Following Diatomic Molecular Species Has Only Pi Bonds According To Molecular Orbital Theory?

(1) O2 (2) N2 (3) C2 (4) Be2 Answer: (3) Further Reading: List of 25 Important Topics in Biology for Competitive Exams List of Important NEET... View Article

For The Second Period Elements The Correct Increasing Order Of First Ionisation Enthalpy Is?

(1) Li < Be < B < C < N < O < F < Ne (2) Li < B < Be < C < O < N < F < Ne (3) Li < B < Be < C... View Article

Enzymes That Utilize Atp In Phosphate Transfer Require An Alkaline Earth Metal (M) As The Cofactor. M Is?

(1) Be (2) Mg (3) Ca (4) Sr Answer: (2) Further Reading: List of 25 Important Topics in Biology for Competitive Exams List of... View Article

The Biodegradable Polymer Is?

(1) Nylon-6,6 (2) Nylon 2-Nylon 6 (3) Nylon-6 (4) Buna-S Answer (2) Further Reading: List of 25 Important Topics in Biology for Competitive... View Article

A Mass M Is Attached To A Thin Wire And Whirled In A Vertical Circle. The Wire Is Most Likely To Break When?

(1) the mass is at the highest point (2) the wire is horizontal (3) the mass is at the lowest point (4) inclined at an angle of 60° from... View Article

In Which Of The Following Devices, The Eddy Current Effect Is Not Used?

(1) Induction furnace (2) Magnetic braking in train (3) Electromagnet (4) Electric heater Answer: (4) Further Reading: List of 25 Important... View Article

What Triggers Activation Of Protoxin To Active Bt Toxin Of Bacillus Thuringiensis In Boll Worm?

(1) Body temperature (2) Moist surface of midgut (3) Alkaline pH of gut (4) Acidic pH of stomach Answer: (3) Further Reading: List of 25... View Article

It Takes Very Long Time For Pineapple Plants To Produce Flowers. Which Combination Of Hormones Can Be Applied To Artificially Induce Flowering In Pineapple Plants Throughout The Year To Increase Yield?

(1) Auxin and Ethylene (2) Gibberellin and Cytokinin (3) Gibberellin and Abscisic acid (4) Cytokinin and Abscisic acid Answer: (1) Further... View Article

Phloem In Gymnosperms Lacks?

(1) Albuminous cells and sieve cells (2) Sieve tubes only (3) Companion cells only (4) Both sieve tubes and companion cells Answer: (4) Further... View Article

Which Among The Following Is The Narrow Spectrum Antibiotic?

a) Penicillin G b) Ampicillin c) Amoxycillin d) Chloramphenicol Answer: (a) Further Reading: List of 25 Important Topics in Biology for... View Article

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