Question

Question 13

1. What is the major role of hydrogen ions in cellular respiration?

   		To power the actions of ATP synthase
   		To make water
   		To act as an electron acceptor
   		To act as the energy source

1 points

Question 14

1. What is the role of glycolysis?

   		Reaction that splits water into oxygen and hydrogen, oxygen released as a waste product, hydrogens sent to another reaction.
   		Reaction that finishes breakdown of glucose, releasing hydrogen ions and electrons, as well as CO2 gas.
   		Splits glucose in half to release electrons and hydrogen ions
   		Takes the hydrogen ions and electrons from previous reactions and produces the bulk of ATP.
   		Reaction that combines hydrogens with CO2 to make glucose

Answer 1

13. To power the action of ATP synthase.

The overall purpose of cellular respiration is to produce ATP as an energy currency that can be utilised inside the biological system from a biochemical source.

During the electron transport chain reaction of cellular respiration, there is a splitting of a water molecule to provide electron. The hydrogen ion from the water is pushed across the cell membrane to create a concentration gradient. A Hydrogen Ion Pump-A protein which is present in the membrane helps hydrogen ion to move back across the membrane. This moving back of hydrogen ion through hydrogen pump powers the action of ATP synthase to produce ATP.

14. Splits glucose in half to release electrons and hydrogen ions.

The glycolysis is a process of extracting energy from a glucose molecule. It is a series of reaction in which glucose is not completely broken down, It forms three-carbon pyruvate molecule from a six-carbon glucose molecule.

The hydrogen released from these reactions is trapped as NADH⁺. which is later used as an energy source and the 2 pyruvate molecule that is formed acts as the electron acceptor.