BIOL 005A Lecture Notes - Lecture 9: Acetyl Group, Oxaloacetic Acid, Acetyl-Coa

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coralmouse327

29 Jan 2018

School

UC Riverside

Department

Biology

Course

BIOL 005A

Professor

Kaloshian Isgouhi, Mauck Kerry

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Document Summary

Biol 005a lecture 9 - glycolysis and fermentation. Catabolic pathways yield energy by oxidizing organic fuels. Chemical reactions that transfer electrons between reactants are called. C 6 h 12 o 6 + 6o 2 6co 2 + 6h 2 o + energy (heat, atp) oxidation-reduction reactions, or redox reactions. In reduction , a substance gains electrons, or is reduced (the amount of positive. C 6 h 12 o 6 is oxidized in the reaction above. Some redox reactions do not transfer electrons but change the electron sharing in covalent bonds charge is reduced) 6o 2 is reduced in the reaction above. The electron donor is called the reducing agent. The electron acceptor is called the oxidizing agent. An example is the reaction between methane and o 2. Ch 4 + 2o 2 co 2 + energy + 2h 2 o. Oxidation of organic fuel molecules during cellular respiration.

Related Questions

Phototrophs need an electron source like H₂S orH₂O. Where do the electrons from these sources go?(Assume the organism is growing autotrophically as well astophototrophically.)

	O₂ and CO₂
	O₂ only
	CO₂ only
	Sulfate or oxygen
	Inorganic various molecules, depending on cellular needs.

Which of the following statements about chlorophyll istrue?

	It is a good electron acceptor in its oxidized form.
	It is a good electron donor in its reduced form when energizedby light.
	It contains magnesium.
	It is a tetrapyrrole.
	All of the above

The unifying feature of all photosynthetic organisms isa(n)

	electron transfer chain.
	electron donating system to generate NADPH.
	ATP-generating system.
	light-gathering system.
	All of the above

Evidence suggests that banded iron formations are due to

	chemical oxidation of reduced iron, Fe²⁺.
	aerobic reduction of insoluble ferric iron, Fe(OH)₃.
	anaerobic oxidation of soluble ferrous iron,Fe²⁺.
	Both a and b
	Both a and c

In addition to their ability to harvest light in the 400 to 500nm range, carotenoids also

	eject electrons from the reaction center.
	function as a tetrapyrrole.
	intercept toxic single-state oxygen.
	transfer electrons to ubiquinone.
	raise electrons to a higher energy state.

Ribosomal RNA and other cell features affirm that living cellsshould be divided into three groups called domains.

	True
	False

Microbes have started to evolve recently.

	True
	False

The ________ was essential for the evolution of oxygenicphotosynthesis.

	evolution of cyanobacteria
	development of photosystem I
	ability to extract electrons from CO₂
	ability to extract electrons from H₂O
	ability to use oxygen as the terminal electron acceptor

What do oxygenic phototrophs use as an electron source?

	Oxygen
	Sulfide
	Water
	Organic compounds
	CO₂

10.

Three domains of organisms have been established basedprimarily on size and other structural features of the cells.

	True
	False

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BIOL 005A Lecture Notes - Lecture 9: Acetyl Group, Oxaloacetic Acid, Acetyl-Coa

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