Cellular Respiration

Front 1

Organic molecules that have an abundance of hydrogen are excellent fuels because their bonds are a source of

Back 1

electrons located at the top with the potential to "fall" closer to the oxygen

Front 2

In respiration, hydrogen is transferred from glucose to

Back 2

oxygen

Front 3

The main engery foods are

Back 3

carbohydrates and fats, which are resevoirs of electrons associated with hydrogen

Front 4

at key steps, hydrogen atoms are stripped from______, but not directly transferred to_____. They are usually passed first to _______ called ____+.

Back 4

glucose, oxygen, coenzyme, NAD+

Front 5

NAD functions as_______.

Back 5

NAD functions as an oxidizing agent, during respiration.

Front 6

a neutralized NAD+, it has received two _______, and one _______, forming ______.

Back 6

2 electrons, 1 proton, NADH.

Front 7

NADH molecule formed during respiration represents stored energy that can be used to make ______ after the electrons complete their cycle at the electron transport chain.

Back 7

ATP

Front 8

First, in cellular respiration, the hydrogen that reacts with _____ is derived from organic molecules.

Back 8

oxygen

Front 9

SEcond, respiration uses the ____________ to break the fall of electrons to oxygen into several energy releasing steps instead of one explosive reaction.

Back 9

electron transport chain

Front 10

_____ captures the electrons along with hydrogen nuclei, forming water.

Back 10

oxygen

Front 11

Oxygen has a great ______- for electrons.

Back 11

affinity

Front 12

most electrons travel this "downhill" route:

Back 12

food -> NADH -> electron transport chain -> oxygen.