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