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18 Cards in this Set

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  • Back
What were the first organic catalysts (enzymes)?
Lengths of RNA
In what series of respiratory reactions is carbon dioxide produced?
Krebs cycle
What happens to fatty acids as their level of unsaturation increases?
1. Their melting point decreased

2. They become more prone to oxidation

3. They take up more space
Polarized light is used to measure:
The proportion of a and b forms of hexose
How many bases on an mRNA are needed to code for one amino acid in protein synthesis
3
The chemical reactivity of fatty acids is reduced by:
Forming lipids
What is produced by the beta-oxidation of fatty acids
Acetyl CoA + ATP + NADH
Where are fatty acids initially synthesized?
Plastids
Which cells in a plant respire?
Only living cells
Which plants produce 3N endosperm?
Angiosperms
In the Redox reactions that occur in respiration, glucose is
:
Oxidized
What prevents water from entering the vascular system through an apoplastic route?
Endodermis
What process converts energy in light photons or chemical bonds into ATP?
Chemiosmotic phosphorylation
Polypeptides are?
Linear strings of amino acids
Where does the extra ATP come from for C4 carbon fixation?
Cyclic photophosphorylation
Most hexoses are D isomers because:
The hydroxyl group is on the right
A saturated chain polyunsaturated fatty acid 
(18:3) has what type of double bonds?
Trans
What is the difference between a molecule of amylose and a molecule of cellulose?
Their type of glycosidic bonds