Q17. Animals do not have enzyme systems which enable them to make use of the energy from : (a)fat (b) water (c)protein (d)carbohydrate
Correct Option: A Although fat is a common way of storing energy, in vertebrates such as humans the fatty acids in these stores cannot be converted to glucose through gluconeogenesis as these organisms cannot convert acetyl-CoA into pyruvate; plants do, but animals do not, have the necessary enzymatic machinery.