Why can a more complex sugar polysaccharide store more energy than a monosaccharide

a: polysaccharide weigh less than monosaccharide
b: polysaccharide contains carbon atoms
c: polysaccharide have more chemical bonds
d: polysaccharide are made by the sun

C: polysaccharide have more chemical bonds

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

a symbiotic relationship with the mitochondria