Which of the following is a necessary reactant for cellular respiration to occur?

1) Carbon dioxide
2) Nitrogen
3) Oxygen
4) Water

Question

Which of the following is a necessary reactant for cellular respiration to occur? 

	1)	Carbon dioxide
	2)	Nitrogen
	3)	Oxygen
	4)	Water

anonymous · Answer

I am stuck between carbon dioxide and oxygen, eliminated nitrogen and water

anonymous · Answer

I would go with oxygen.

anonymous · Answer

For animals, I would say oxygen.

anonymous · Answer

In the Krebs cycle:
	1)	pyruvate is broken down into CO2 molecules
	2)	glucose is broken down into NADH and CO2
	3)	CO2 is converted into pyruvate and O2
	4)	NADH and CO2 are converted into ATP

anonymous · Answer

Please start a new thread for a new question, (Sorry, it's the rules on OpenStudy)