Centre for thermoregulation is located in?
Options
(a) anterior pituitary (b) hypothalamas (c) kidney (d) heart
Correct Answer:
hypothalamas
Explanation:
Hypothalamus is the part of the vertebrate brain that is derived from the […]
The thickness of cell membranes varies between 6 and 9
Options
(a) millimeters (b) micrometers (c) nanometers (d) picometers
Correct Answer:
nanometers
Explanation:
No explanation available. Be the first to write the explanation for […]
The primary cell wall of plant consists of
Options
(a) cellulose (b) hemicellulose (c) pectin (d) all of these
Correct Answer:
all of these
Explanation:
No explanation available. Be the first to write […]
The fluid mosaic model of bio membrane was proposed by
Options
(a) Watson and Crick (b) Singer and Nicolson (c) Danielli and Davson (d) none of the above
Correct Answer:
Singer and Nicolson
Open circulatory system is present in:A)Arthropods,B)Annelids,C) Chordates, D)Molluscs
Options
(a) Chordates only (b) Chordates and Annelids (c) Molluscs only (d) Arthropods and Molluscs
Correct Answer:
Arthropods and Molluscs
Explanation:
Open circulatory system occurs […]
One mole of a gas absorbs 300 J of heat at constant volume and its temperature is raised from 30 to 35⁰C. The value of ΔE is
Options
(a) 300 J (b) 0.1 J […]
The internal energy of a system is the sum of
Options
(a) vibrational energy and electronic energy (b) vibrational energy and rotational energy (c) vibrational energy, rotational energy, electronic energy and translational energy (d) […]
If the melting point of ice is 0⁰C and latent heat of fusion is 5.46 kJ mol⁻¹, the entropy change for the conversion of 18 g of ice to water at one atmosphere is
In which of the following conditions a chemical reaction can not occur
Options
(a) ΔH and ΔS increase and TΔS > ΔH (b) ΔH and ΔS decrease and ΔH > TΔS (c) ΔH increases […]
H₂S acts only as a reducing agent while SO₂, can act both as a reducing and oxidizing agent because
Options
(a) S in H₂S has -2 oxidation state (b) S in SO₂ has […]
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