Assertion: Spirogyra is slippery in touch.
Reason: Spirogyra consists a gelatinous sheath.

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false

Answer

A

Explanation

Due to solubility of pectose in `H_2O` the filament of spirogyra become slimary in appearance the pectose with water form pectin that produces gelatinous sheath.