Amino acids are the building blocks of proteins in the body. The formation of amino acids takes place in the cell using atoms from sugar C, H, and O.

Based on the diagram, which revision should be added to this explanation?

A. The cell must destroy atoms to form an amino acid molecule.
B. Carbon atoms must replicate to form an amino acid molecule.
C. The cell must create new atoms to form an amino acid molecule,
D. Nitrogen atoms must also be available to form an amino acid molecule.

i don't understand. explain it clearly

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

answerdmitry mendeleyev made a workable classification of the elements