Carbohydrates are the primary source of energy for the human body. if your body lacks enzymes that break down carbohydrates, it would be unable to get (amino acid molecules, fatty acid molecules, sugar molecules) for energy production. If you lacked the enzyme to digest proteins, you may not absorb enough (amino acids, simple sugars, fats).

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.