Which of the following compounds is known as the antisterility factor?

Which of the following vitamins acts as a primary antioxidant?

The provided image shows chemical structures related to resonance and electronic effects. Identify the correct relationship or description for these structures.

Which substance is most abundant in a cell?

Match the following:

$(a)$ Inhibitor of catalytic activity	$(i)$ Ricin
$(b)$ Possess peptide bonds	$(ii)$ Malonate
$(c)$ Cell wall material in fungi	$(iii)$ Chitin
$(d)$ Secondary metabolite	$(iv)$ Collagen

Choose the correct option from the following:

When the body is rapidly oxidizing fat,excessive ketone bodies get accumulated in the body,resulting in the formation of