Biology Final Exam Study Guide – Cellular
Respiration, ATP & Genetics|Verified Questions
Complete with A+ Graded Rationales Latest
Updated 2026
Cellular Respiration
The process by which cells break down glucose to release energy in the form of ATP.
Glycolysis
Occurs in the cytoplasm, breaks down glucose into two molecules of pyruvate, producing a
small amount of ATP and NADH.
Krebs Cycle
Takes place in the mitochondria, further breaks down pyruvate into carbon dioxide and
transfers energy to NADH, FADH2, and ATP.
Electron Transport Chain
Happens in the inner mitochondrial membrane, where electrons from NADH and FADH2 are
used to generate a large amount of ATP.
ATP
A molecule that carries energy within cells.
NADH
An electron carrier produced during glycolysis and the Krebs cycle.
FADH2
An electron carrier produced during the Krebs cycle.
Mitochondria
Organelles known as the powerhouse of the cell, where cellular respiration occurs.
Final product of cellular respiration
ATP
Location of glycolysis
,Cytoplasm
Produced during the Krebs Cycle
Carbon Dioxide
Primary carrier of electrons during cellular respiration
NADH
Location of the electron transport chain
Inner membrane of the mitochondria
What steps generating the most ATP
Electron Transport Chain
How many ATP is produced from one glucose molecule
36 ATP
Purpose of oxygen in cellular respiration
To accept electrons and form water
Waste product of cellular respiration
Carbon Dioxide
TorF Glycolysis requirement for oxygen
False
TorF ATP production in the electron transport chain
True
TorF Fermentation occurrence with oxygen
False
TorF Mitochondria as powerhouse of the cell
True
TorF Carbon dioxide by-product of Krebs Cycle
True
Process of breaking down glucose into pyruvate
, Glycolysis
Final electron acceptor in the electron transport chain
Oxygen
What is the Process when oxygen is absent
Fermentation
ATP produced in the Krebs Cycle used for
Cellular energy
Main function of mitochondria
To produce ATP through cellular respiration.
Importance of ATP in cellular respiration
ATP is the primary energy carrier in cells, providing the energy necessary for cellular
processes.
What happens during glycolysis
Glycolysis is the breakdown of glucose into two molecules of pyruvate, producing a small
amount of ATP and NADH.
Glycolysis
The breakdown of glucose into two molecules of pyruvate, producing a small amount of ATP
and NADH.
Oxygen's role in cellular respiration
Oxygen is the final electron acceptor in the electron transport chain, forming water and
enabling the production of ATP.
Genetics
The study of heredity and the variation of inherited characteristics.
Genes
Units of heredity that are passed from parents to offspring.
Alleles
Different versions of a gene.
Respiration, ATP & Genetics|Verified Questions
Complete with A+ Graded Rationales Latest
Updated 2026
Cellular Respiration
The process by which cells break down glucose to release energy in the form of ATP.
Glycolysis
Occurs in the cytoplasm, breaks down glucose into two molecules of pyruvate, producing a
small amount of ATP and NADH.
Krebs Cycle
Takes place in the mitochondria, further breaks down pyruvate into carbon dioxide and
transfers energy to NADH, FADH2, and ATP.
Electron Transport Chain
Happens in the inner mitochondrial membrane, where electrons from NADH and FADH2 are
used to generate a large amount of ATP.
ATP
A molecule that carries energy within cells.
NADH
An electron carrier produced during glycolysis and the Krebs cycle.
FADH2
An electron carrier produced during the Krebs cycle.
Mitochondria
Organelles known as the powerhouse of the cell, where cellular respiration occurs.
Final product of cellular respiration
ATP
Location of glycolysis
,Cytoplasm
Produced during the Krebs Cycle
Carbon Dioxide
Primary carrier of electrons during cellular respiration
NADH
Location of the electron transport chain
Inner membrane of the mitochondria
What steps generating the most ATP
Electron Transport Chain
How many ATP is produced from one glucose molecule
36 ATP
Purpose of oxygen in cellular respiration
To accept electrons and form water
Waste product of cellular respiration
Carbon Dioxide
TorF Glycolysis requirement for oxygen
False
TorF ATP production in the electron transport chain
True
TorF Fermentation occurrence with oxygen
False
TorF Mitochondria as powerhouse of the cell
True
TorF Carbon dioxide by-product of Krebs Cycle
True
Process of breaking down glucose into pyruvate
, Glycolysis
Final electron acceptor in the electron transport chain
Oxygen
What is the Process when oxygen is absent
Fermentation
ATP produced in the Krebs Cycle used for
Cellular energy
Main function of mitochondria
To produce ATP through cellular respiration.
Importance of ATP in cellular respiration
ATP is the primary energy carrier in cells, providing the energy necessary for cellular
processes.
What happens during glycolysis
Glycolysis is the breakdown of glucose into two molecules of pyruvate, producing a small
amount of ATP and NADH.
Glycolysis
The breakdown of glucose into two molecules of pyruvate, producing a small amount of ATP
and NADH.
Oxygen's role in cellular respiration
Oxygen is the final electron acceptor in the electron transport chain, forming water and
enabling the production of ATP.
Genetics
The study of heredity and the variation of inherited characteristics.
Genes
Units of heredity that are passed from parents to offspring.
Alleles
Different versions of a gene.
