These proteins are called enzymes. They are very shape specific and therefore will usually lower the activation energy for a specific reaction.
Answer:
they need a high ‘surface to volume’ ratio, which is good for exchanging materials between the inside and outside of cells. But this is probably not really the size-limiting reason, since cells vary enormously in size and surface area to volume ratios.
Explanation:
Hydrocarbons. (organic compounds entirely made up of hydrogen and oxygen)
Lowercase b is the allele that goes in 3
