PLANT STRUCTURE QUIZ

If the ends of the following polysaccharide are pulled, which one would stretch the most?

Glycogen

None of these

Starch

Cellulose

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Cellular metabolism is an example of

equilibrium metabolism

a series of reactions occurring under standard conditions

steady-state metabolism

a series of reactions that defy the second law of thermodynamics

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Which molecule serves as a carrier of fatty acids in mitochondria?

Carnitine

Malonyl-CoA

Acetyl-CoA

Dolichol

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The fluid matrix of a cell is called the

cytosol

endoplasmic reticulum

cytoskeleton

nucleus

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Which of the following elements is likely to form the least polar covalent bond with hydrogen?

Oxygen

Nitrogen

Carbon

Phosphorus

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If complex III were incorporated into an artificial lipid vesicle in order to demonstrate it's proton translocating ability in isolation, which of the following would be an appropriate electron donor?

Ubiquinol (UQH2)

Cytochrome c red

Cytochrome c oxidase

Cytochrome c peroxidase

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Lysosomes are associated with

digestion

photosynthesis

storage

respiration

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The composition of the inner mitochondrial membrane is most like that of

the outer mitochondrial membrane

the nuclear membrane

some bacterial plasma membranes

the cell's plasma membrane

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The cellular organelle associated with photosynthesis is the

chloroplast

golgi complex

lysosome

mitochondrion

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Which of the following experimental results does not support Mitchell's chemiosmosis theory?

An artificial proton gradient across the inner mitochondrial membrane drives ATP synthesis in the absence of electron transport

Addition of dinitrophenol to isolated mitochondria during electron transport was shown to inhibit acidification of the medium

Electron transport in isolated mitochondria was shown to result in acidification of the medium

Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis

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