All living things need to make ENERGY to function and live. It is needed to grow, reproduce, move, and to work.
Whether...
Plants need energy to make produce oxygen and glucose to...
Humans need energy for respiration(breathing out CO2 and taking in oxygen) to...
Bacteria too...for something that I can't think of at the moment:P
Answer:
In a chemical reaction the total mass of all the substances taking part in the reaction remains the same. Also, the number of atoms in a reaction remains the same. ... The law of conservation of mass states that the total mass of substances taking part in a chemical reaction is conserved during the reaction.
Explanation:
There are four main groups of macromolecules:
1. Nucleic acids (DNA and RNA)-monomers are nucleotides; provide genetic information
2. Proteins-monomers are amino-acids; structural, catalytic, regulatory roles
3. Lipids (fats)-monomer units are free fatty acids; structural, energy, insulation roles
4. Carbohydrates (sugars)-monomer units are monosaccharides (like glucose); energy source, structural function.
