GENERAL-BIOLOGY-Q2-WEEK 6

Glycolysis

The first step in the breakdown of glucose to extract energy for cellular metabolism, converting glucose into pyruvate.

Krebs Cycle

A series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetyl-CoA.

Electron Transport Chain

The final component of aerobic respiration that uses electrons from NADH and FADH2 to reduce molecular oxygen and produce water.

Chemiosmosis

The movement of ions across a selectively permeable membrane, generating ATP via a proton gradient.

ATP (Adenosine Triphosphate)

The energy currency of the cell, used to power various cellular processes and reactions.

Pyruvate

A three-carbon molecule that is the end product of glycolysis, which can be further processed in cellular respiration.

Acetyl-CoA

A two-carbon molecule formed from pyruvate, entering the Krebs cycle for further energy production.

NADH

A reduced form of nicotine adenine dinucleotide, which serves as an electron carrier in cellular respiration.

FADH2

A reduced form of flavin adenine dinucleotide, also acting as an electron carrier in the Krebs cycle.

Proton Gradient

A difference in proton concentration across a membrane, utilized in chemiosmosis to generate ATP.