I Think Its A ? Help Please

An enzyme is a protein that

transports nutrients across a membrane

increases the rate of a chemical reaction

receives and sends signals across a cell

provides structure for the cell’s organelles

Question

I Think Its A ? Help Please 

An enzyme is a protein that

transports nutrients across a membrane

increases the rate of a chemical reaction

receives and sends signals across a cell

provides structure for the cell’s organelles

anonymous · Answer

Increases the rate of a chemical reaction:)

anonymous · Answer

:/ Im Dumb ?

anonymous · Answer

What About This One ?

Carbon atoms are able to

give off electrons to form negative carbon ions

bond with other carbon atoms to form long chains

gain four extra electrons to form positive carbon ions

form five single covalent bonds with their valence electrons

anonymous · Answer

lol no you're not, just keep tryin':)

anonymous · Answer

I Was Gone Guess :/ A. ?

followthefez · Answer

bond with other carbon atoms to form long chains