Metabolism Concepts

Metabolism is the sum of all anabolic and ______ reactions in a cell.

Anabolic reactions use or ______ energy.

Catabolic reactions ______ energy.

Free energy (G) is chemical energy available to do ______.

Enzymes are ______ that reduce the activation energy of a reaction.

Substrates interact with enzymes at the ______ site.

Enzymes can be regulated by allosteric effectors that bind somewhere other than the active site, called the ______ site.

Negative feedback loops use the ______ of a pathway to inhibit an enzyme at the beginning of the pathway.

The most common means of reaction coupling is to use the ______ of ATP, yielding a ∆G = -7.3 kcal/mole.

______ is the loss of electrons and reduction is the gain of electrons by molecules.

NADH (or NADPH) is a commonly used high energy ______ carrier in metabolism.

Positive delta G reactions are accomplished by ______ which combines a positive ∆G reaction with a negative ∆G reaction.