BIOL 112 Lecture Notes - Lecture 12: Phosphorylation, Cellular Respiration, Dinitrophenol

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28 Jan 2015

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Adp + pi chemolithoheterotroph: oxidative phosphorylation (oxphos) label the boxes on the diagram chemolithoautotroph. Biology 112 metabolism worksheet: ndp or dinitrophenol when the drug dinitrophenol (dnp) is added to mitochondria, the inner mitochondrial membrane becomes permeable (leaky) to protons (h+). Predict the effect of dnp on: the h+ gradient across the membrane. The cell will attempt to deliver more electrons (via nadh or fadh2) to the etc to compensate for the h+ gradient loss. Atp synthesis will shut down no gradient to provide energy from flow of h+ Etc will continue to deliver electrons to the. Terminal electron acceptor o2 and will be reduced to water: nadh/nad+ ratio in the matrix. The cell will attempt to compensate for the lack of. H+ gradient by increasing metabolic processes in the other phases of cellular respiration and provide nadh and fadh2 at a faster rate. The cell will catabolize more carbohydrates to do this.

Related Questions

Question 7 (1 point)

You are working with a transcription factor protein and genetically remove the only helix-turn-helix domain in it. What is likely to happen?

Question 7 options:

	The transcription factor no longer works as it does not bind DNA
	The transcription factor works more efficiently as HTH domains inhibit DNA binding
	The transcription factor is unable to release DNA due to loss of HTH
	The transcription factor does not interact with its co-activator.

Question 8 (1 point)

Under which of the following conditions would the lac operon be active.

Question 8 options:

	low glucose, high lactose
	high glucose, high lactose
	low glucose, low lactose
	high glucose, low lactose

Please help me check this answers, the ones in bold are the ones I choose as my answers.

A food containing 20g of carbohydrates would have a kilocaoric value of

120

200

Excess carbohydrates beyond the body's need is converted in the body to.

Fat

Glycogen

Glucose

Protein

Which of the following terms would be identified as the most complex carbohydrate?

Monosaccharides

Disaccharides

Trisaccharides

Polysaccharide

Which example of carbohydrate is table sugar?

Sucrose

Fructose

Glucose

Galactose

Which of the following carbohydrate foods provide the quickest energy?

Slice of bread

Chocolate candy bar

Corn on the cob

Glass of apple juice

An energy source stored in the liver is

Glycerol

Glycogen

Glycine

Glycerude

Cellulose which is classified as a polysaccharide, has no caloric value. It is important in the body because it:

Starts enzyme activation

Aids in mineral absorption

Stimulates intestinal movement

Protects vital organs

The refined fuel glucose is delivered to the cells by the blood for production of energy. The hormone for controlling use of glucose by the cells is:

Thyroxin

Growth hormone

Adrenal steroid

Insulin

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.

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BIOL 112 Lecture Notes - Lecture 12: Phosphorylation, Cellular Respiration, Dinitrophenol

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