MCQ on Plasma Membrane (Part-1): The plasma membrane, also known as the cell membrane, is a thin, semi-permeable barrier that surrounds the cell, separating its internal contents from the external environment. It is composed of a phospholipid bilayer with embedded proteins and controls the movement of substances in and out […]
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MCQ on Water, pH and Buffer Systems (Part-3)
(1). What is the molecular weight of water? a. 10 g/mol b. 15 g/mol c. 18 g/mol d. 20 g/mol (2). What is the H+ ion concentration in pure water? a. 1 X 10-7 m […]
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MCQ on Water (Part-2)
(1). Bond length between H and O atoms in water is: a. 0.00965 nm b. 0.0965 nm c. 0.965 nm d. 9.650 nm (2). The van der Waals radius of Oxygen atom in water molecule is a. 1.2 Å b. 1.4 Å c. 1.6 Å d. 1.8 Å Learn more: […]
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MCQ on Water, pH and Buffer Systems (Part-1)
MCQ on Water (1). Water is liquid at room temperature, the most important reason for this is the: a. High boiling point of water b. High melting point of water c. High heat of vaporization of water d. Cohesive forces due to hydrogen bonds in water Learn more: MCQ on […]
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