What type of biological molecule is dna helicase?

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

Consider the diagram below, which represents components of the biosphere. what do the two arrows in the diagram most likely represent? a. radiation b. photosynthesis c. cellular respiration d. energy conversions will give to anyone who answers quickly

Witch type of microscope is used to view very small cell components like proteins and dna?