BIOL 1000 Chapter Notes - Chapter 6: Oxidative Phosphorylation, Citric Acid Cycle, Intermembrane Space

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redscorpion996

17 Mar 2016

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Cellular respiration: collection of metabolic reactions within cells that breaks down food molecules (carbohydrates, fats, proteins) and uses the liberated free energy to synthesize atp. Comes after photosynthesis which uses light energy to ultimately create glucose, a carbohydrate. Oxygen is also a by-product of photosynthesis that is necessary for cellular respiration. *oxygens high electronegativity makes it ideal as the terminal electron acceptor of cellular respiration. Dehydrogenases: group of enzymes, which oxidize food molecules (transfer electrons from food to a molecules to a molecule that acts as an energy carrier). Nicotinamide adenine dinucleotide: most common energy carrier- nad+ is oxidized, The dehydrogenases remove two hydrogen atoms from a substrate and transfer the two electrons and one of the protons to nad+, reducing it to nadh. Enzymes break down glucose molecule into 2 (3c) pyruvate molecules. It occurs in all three domains of life. In glycolysis, atp is generated by substrate level.

Related Questions

_____What is added to a molecule such as ADP when it is phosphorylated?

_____ An anaerobic process in which pyruvate is converted to lactate

_____ A biochemical process that breaks down food molecules to produce other molecules for cellular maintenance.

_____What is the final end product of Glycolysis?

_____ Refers to the potential energy provided by a large hydrogen-cation concentration gradient, and itâs movement across a biological membrane during chemiosmosis.

_____ A molecule that transfers or shuttles electrons during redox reactions.

_____ An organism that can survive in the presence or absence of oxygen.

_____ A type of enzyme that teams with NAD⁺ to remove hydrogen atoms with their electrons.

_____ The loss of electrons from one molecule to another.

_____ A process in which ATP is produced using the energy stored in concentration gradients.

_____ The products produced during a biochemical reaction that fall between the starting molecule and the end product.

_____ Biochemical process in which a glucose molecule is degraded to two pyruvates.

_____ Short for âreduction/oxidationâ reactions

_____How many pyruvate molecules are produced from a single Glyceraldehyde 3-phosphate?

_____ The formation of ATP occurring when an enzyme transfers a phosphate group from an organic molecule to ADP.

_____ Organisms that will die in the presence of oxygen.

_____ A term referring to the presence of oxygen.

_____ A series of electron-carrier molecules that shuttle electrons during the redox reactions that release energy used to make ATP.

_____ A biochemical process in which pyruvate is produced without the presence of oxygen.

20._____ The metabolic cycle that is fueled by Acetyl CoEnzyme A; occurs in the matrix of the mitochondria and supplies most of the NADH molecules that carry energy to the electron transport chain.

_____What is the chemical formula for Cellular Respiration?

_____What environmental condition is necessary for Anaerobic Respiration to occur?

_____Where does the Electron Transport Chain occur in the mitochondria?

_____Where does Glycolysis occur in a cell?

_____ An anaerobic process in which CO₂ is released as a byproduct and ethanol is produced as a product.

_____Where does the Krebs cycle occur in the mitochondria?

_____ The gain of electrons from one molecule to another.

_____ A high-energy fuel molecule that begins the Citric Acid Cycle.

_____What condition is necessary of Aerobic Respiration to occur?

_____ A term referring to the absence of oxygen.

_____What compound is derived from B vitamins, and helps the Acetyl portion of Acetyl CoA into the Krebs Cycle?

_____What is the name of the molecule that channels protons, providing the energy necessary to phosphorylate ADP to ATP?

_____In the blank, write the number of ATP^âs that can be synthesized from 3 NADH molecules.

_____In the blank, write the number of ATP^âs that can be synthesized from a single FADH₂ molecule.

_____What is the final electron acceptor in cellular respiration?

_____What molecule is regenerated during the process of the Krebs Cycle?

_____What enzyme is used to catalyzed the reaction that occurs during the formation of Acetyl CoA?

_____How many pyruvates are produced from a single glucose molecule?

_____How many Acetyl CoA molecules are produced from a single glucose molecule?

_____What is the reduced form of Nicotinamide Adenine Dinucleotide?

_____What is the oxidized form of Flavin Adenine Dinucleotide?

42._____ A membrane protein that is used in conjunction with chemiosmosis to produced ATP.

I know that this alot of questions, but it's kinda a last ditch effort. these are the last 42 definitions i have left to answer out of 500 question for my final exam study guide. so whatever help i can get is fine. No explanations needed just what each definition is explaining and thanks in advance ladies and gentlemen.

scarletlocust623

1. How many ATP are produced between the kreb cycle and glycolysis
a. 4
b. 24
c. 6-8
d. 2

2. The total molecules of ATP from each molecule of glucose is the entire cellular respiration process is (pg 160)
a. 36-38
b. 2-4
c. 6-8
d. 32-38

3. Calvin cycle uses the cellular energy and NADPH to produce _________ from carbon dioxide
a. energy
b. ATP
c. AMP
d. sugar

4. The site of photosynthesis in plants is called the__________
a. chromoplast
b. carotenoids
c. chloroplant
d. chlorophyll

5. T or F The Calvin cycle can also be called the dark cycle of reaction

6. T or F Prokaryotes lack chloroplast but they do have membranes that operates in the same manner

7. What is proton-motive force?
A) the force required to remove an electron from hydrogen
B) the force exerted on a proton by a transmembrane proton concentration gradient
C) the force that moves hydrogen into the intermembrane space
D) the force that moves hydrogen to NAD+
E) the force that moves hydrogen into the mitochondrion

8.In autotrophic bacteria, where are the enzymes located that can carry on carbon fixation (reduction of carbon dioxide to carbohydrate)?

A) in chloroplast membranes
B) in the infolded plasma membrane
C) in chloroplast stroma
D) in the cytosol
E) in the nucleoid

9.Organism that depend on an outside source to produce food for their consumption using the process of photosynthesis are called ______________
a. saprobes
b. chemoautotrophs
c. heterotrophs
d. mixotrophs

10.In many chemical reactions, there is a transfer of one or more electrons from one reactant to another transfers of electron are called________
a. oxidation
b. reduction
c. redox action
d. metabolism

skyant786

Which of the following is common to both aerobic and anaerobicmicrobes?

	Fermentation
	An electron transport chain
	Pyruvate oxidation
	Glycolysis
	All of the above

The primary purpose of catabolism is

	generation of ADP.
	generation of ATP.
	oxidation of NADH to NAD⁺.
	degradation of organic molecules.
	biosynthesis.

What is a fate of pyruvate during alcoholic fermentation byyeast?

	It is reduced to lactic acid.
	It is oxidized to form glucose and carbon dioxide
	It is cleaved to form acetylaldehyde and carbon dioxide.
	It is catabolized in glycolysis.
	It is oxidized to form lactic acid and carbon dioxide.

Electrons needed to reduce an oxidized electron acceptor areprovided by

	a) externally provided compounds such asH<sub>2</sub>, lactate or formate.
	b) an intermediate electron carrier such as NADH.
	c) 0<sub>2</sub>.
	d) Both a and b
	e) All of the above

How are aerobic respiration and anaerobic respirationsimilar?

	Both use oxygen as a terminal electron carrier.
	These are other names for glycolysis.
	Both utilize inorganic molecules as terminal electronacceptors.
	Neither receives electrons from glycolysis.
	Anaerobic respiration does not exist in microbes.

The conversion of phosphoenolpyruvic acid (PEP) topyruvate

	a) releases CO<sub>2</sub>.
	b) involves the conversion of ADP and ATP.
	c) involves substrate-level phosphorylation.
	d) Both a and b
	e) Both b and c

Which of the following is the best definition offermentation?

	The reduction of glucose to pyruvic acid
	The complete catabolism of glucose to CO₂ andH₂O
	The oxidation of a carbohydrate with organic molecules servingas electron donors and acceptors
	The production of ATP from glucose
	The production of ethanol from glucose

A reaction that yields energy has a

	positive ?G_o?.
	negative ?G_o?.
	positive ?E_o?.
	negative ?E_o?.
	negative ?H_o?.

Oxidation and reduction reactions are always coupledbecause

	a) electrons generally accompany protons.
	b) protons generally accompany protons.
	c) electrons cannot exist free in solution.
	d) Both a and b
	e) All of the above

10.

Which of the following is true of aerobic respiration?

	It involves the reduction of oxygen.
	It involves the oxidation of oxygen.
	It involves the reduction of lactic acid.
	It involves the oxidation of lactic acid.
	It does not generate ATP.

plumgnu195

BIOL 1000 Chapter Notes - Chapter 6: Oxidative Phosphorylation, Citric Acid Cycle, Intermembrane Space

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