Plant Structure
If the ester bonds of a triacylglycerol molecule's are broken then the kind of molecule, which would be soluble in water, is

fatty acid
glycerol
steroid
glycogen

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Plant Structure
Which of the following statements about mitochondrial proteins is true?

Mitochondrial proteins arise from other mitochondrial proteins
All mitochondrial proteins are imported from the cytoplasm
Some mitochondrial proteins are coded for and synthesized in the mitochondria and others
All mitochondrial proteins are coded for and synthesized in the mitochondria

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Plant Structure
The mitochondria were known in the nineteenth century to be osmotically active on the basis of evidence that

the mitochondrial matrix is hypotonic to the cellular cytoplasm
mitochondria were derived from a symbiotic bacterium
mitochondria are surrounded by a semi permeable membrane
the mitochondrial matrix is hypertonic to the cellular cytoplasm

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Plant Structure
Any system that is not at equilibrium

is rushing toward equilibrium at a very rapid rate
is kinetically unstable, although it may be thermodynamically stable
requires an enzyme to reach equilibrium
is thermodynamically unstable, although it may be kinetically stable

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Plant Structure
Which of the following statements about the outer mitochondrial membrane is not true?

The outer membrane is about 50% lipid and 50% protein by weight
The outer membrane is highly permeable to substances of small molecular weight
The outer membrane contains porins
The outer membrane is impermeable to hydrogen ions

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