UKY BIO 152 Exam 3 UPDATED Exam
Questions and CORRECT Answers
Glycolysis (general definition) - CORRECT ANSWER - Splitting of glucose; starts with a
6 carbon-sugar molecule; powered by ATP
ATP - CORRECT ANSWER - formed when a phosphate group is added to ADP; releases
energy when broken down; energy-carrying molecule
Hydrolysis - CORRECT ANSWER - the release of one or two phosphate groups from
ATP
Dephosphorylation - CORRECT ANSWER - removal of a phosphate group from a
molecule
Steps of Glycolysis - CORRECT ANSWER - 1. Phosphate groups from two ATP
molecules are transferred to a glucose molecule.
2. A six-carbon is broken down into two three-carbon compounds.
3. Two NADH molecules and four ATP molecules are produced.
4. Each three-carbon compound is converted into a three-carbon pyruvate.
Citric Acid Cycle (Krebs cycle) - CORRECT ANSWER - 1. 2 Pyruvates enter the
mitochondrion
2. releases 2 ATP, 6NADH, and 2 FADH2 for each glucose
Ventilation - CORRECT ANSWER - bulk movement of air or water to gas exchange
organ
Gas exchange - CORRECT ANSWER - diffusion of CO2 or O2 across a cellular
membrane barrier
, Cellular respiration - CORRECT ANSWER - -rate of oxygen use and production of
carbon dioxide by a single cell
-breaking down glucose
-4 steps: glycolysis, pyruvate processing, citric acid cycle (Krebs cycle), and electron transport
Cirulation - CORRECT ANSWER - bulk movement of a fluid throughout the body of an
animal
Whole body respiration - CORRECT ANSWER - rate of oxygen use and production of
carbon dioxide by a whole animal
Glucose oxidation includes: - CORRECT ANSWER - glycolysis, pyruvate processing, and
citric acid cycle (Krebs cycle)
Electron transport chain (chemiosmosis) - CORRECT ANSWER - establishes proton
gradient that is used to make ATP; only process of metabolism that uses oxygen; protein
complexes use energy in electrons to pump H+ from matrix to intermembrane space (higher
concentration in intermembrane space)
Glycolysis (in/out/where) - CORRECT ANSWER - In: glucose and ATP
Out: pyruvate, ATP, and NADH
Where? cytoplasm
Pyruvate Oxidation (in/out/where) - CORRECT ANSWER - In: pyruvate
Out: Acetyl CoA, CO2, and NADH
Where? from cytoplasm to mitochondria
Citric Acid Cycle (Krebs cycle) (in/out/where) - CORRECT ANSWER - In: Acetyl CoA
Out: CO2, ATP, NADH, and FADH2
Questions and CORRECT Answers
Glycolysis (general definition) - CORRECT ANSWER - Splitting of glucose; starts with a
6 carbon-sugar molecule; powered by ATP
ATP - CORRECT ANSWER - formed when a phosphate group is added to ADP; releases
energy when broken down; energy-carrying molecule
Hydrolysis - CORRECT ANSWER - the release of one or two phosphate groups from
ATP
Dephosphorylation - CORRECT ANSWER - removal of a phosphate group from a
molecule
Steps of Glycolysis - CORRECT ANSWER - 1. Phosphate groups from two ATP
molecules are transferred to a glucose molecule.
2. A six-carbon is broken down into two three-carbon compounds.
3. Two NADH molecules and four ATP molecules are produced.
4. Each three-carbon compound is converted into a three-carbon pyruvate.
Citric Acid Cycle (Krebs cycle) - CORRECT ANSWER - 1. 2 Pyruvates enter the
mitochondrion
2. releases 2 ATP, 6NADH, and 2 FADH2 for each glucose
Ventilation - CORRECT ANSWER - bulk movement of air or water to gas exchange
organ
Gas exchange - CORRECT ANSWER - diffusion of CO2 or O2 across a cellular
membrane barrier
, Cellular respiration - CORRECT ANSWER - -rate of oxygen use and production of
carbon dioxide by a single cell
-breaking down glucose
-4 steps: glycolysis, pyruvate processing, citric acid cycle (Krebs cycle), and electron transport
Cirulation - CORRECT ANSWER - bulk movement of a fluid throughout the body of an
animal
Whole body respiration - CORRECT ANSWER - rate of oxygen use and production of
carbon dioxide by a whole animal
Glucose oxidation includes: - CORRECT ANSWER - glycolysis, pyruvate processing, and
citric acid cycle (Krebs cycle)
Electron transport chain (chemiosmosis) - CORRECT ANSWER - establishes proton
gradient that is used to make ATP; only process of metabolism that uses oxygen; protein
complexes use energy in electrons to pump H+ from matrix to intermembrane space (higher
concentration in intermembrane space)
Glycolysis (in/out/where) - CORRECT ANSWER - In: glucose and ATP
Out: pyruvate, ATP, and NADH
Where? cytoplasm
Pyruvate Oxidation (in/out/where) - CORRECT ANSWER - In: pyruvate
Out: Acetyl CoA, CO2, and NADH
Where? from cytoplasm to mitochondria
Citric Acid Cycle (Krebs cycle) (in/out/where) - CORRECT ANSWER - In: Acetyl CoA
Out: CO2, ATP, NADH, and FADH2
