Ch. 24 Module 3
Identify the physiological step at "C"
ATP synthesis harnesses the energy of the proton gradient to synthesize ATP
Identify the stage of metabolism at "B"
Acetyl CoA
As proteins are broken down for energy ____________ is generated; the liver then converts the potentially toxic intermediate into ____________
Ammonia; urea
Match the following event of metabolism with the process occurring: Lipolysis
Breakdown of lipids
Identify the stage of metabolism at "C"
Citric acid cycle
Which of the following statements about "redox" reactions in human metabolism is correct?
Coenzymes accept hydrogen
Match the nutrient with its correct set of characteristics: Protein
Composed of amino acids; used to build structural components of cells as well as functional components (enzymes)
Stage of metabolism indicated by "A" occurs in the ___________.
Cytoplasm
Identify the physiological step at "A"
Electron transport creates a proton gradient
Which of the following is a correct description of the citric acid cycle (or Krebs cycle)?
Fueled largely by pyruvic acid
Identify the stage of metabolism at "A"
Glycolysis
Cyanide acts as a poison by
Interfering with the flow of electrons in the electron transport chain
The stage of metabolism indicated by "D" occurs in the ____________.
Mitochondrial inner membrane
The site of electron transport is the __________.
Mitochondrial inner membrane (cristae)
Identify the stage of metabolism at "D"
Oxidative phosphorylation
The final acceptor in the electron transport chain is _____
Oxygen
Which of the following describes the products of glycolysis?
Produces two molecules of pyruvic acid, four ATP, two NADH + H+
Match the cellular respiration term with the correct characteristic: Oxidative Phosphorylation.
Requires ATP synthase at end
Match the cellular respiration term with the correct characteristic: Beta oxidation
Results in fatty acid chains being broken down
Match the following term to its correct description: Glycogenolysis
The cleavage of glycogen to release glucose
Which of the following is the correct description of glycogenesis?
The formation of glycogen to store glucose
Match the following term to its correct description: Gluconeogenesis
The process of forming glucose from noncarbohydrate molecules
Match the following term to its correct description: Beta oxidation
The start phase of fatty acid breakdown
Match the following term to its correct description: Lipogenesis
Triglyceride synthesis
Which of the following is a description of lipids?
Triglycerides are the most common in diet
In glycolysis, glucose must be activated with the use of how many ATP molecules?
Two
The final product(s) of glycolysis is (are) __________
Two molecules of pyruvic acid, two molecules of reduced NAD+, and a net gain of two ATP
Most of the ATP produced during cellular respiration is produced by __________.
oxidative phosphorylation during the chemiosmotic process