The term oxidation is derived from the name of the element oxygen. This is reasonable, because oxygen
A. attracts electrons very strongly.
B. can be oxidized by accepting electrons.
C. contains more electrons than are needed.
D. passes electrons to many other types of molecules.
A
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Which of the following pigments would you find in a typical leaf?
(a) chlorophyll, xanthophyll, phycobilins. (b) chlorophyll a, chlorophyll b, carotenoids. (c) phycocyanin, xanthophyll, fucoxanthin. (d) carotenoids, chlorophylls, phycoerythrin.
Some bryophyte species are ____, meaning that they grow independently on another organism
a. tracheophytes b. epiphytes c. parasites d. charophytes e. rhizoids
Humans are classified as hominoids because
A) they have larger bodies and bigger brains than other primates. B) all primates are classified in this group. C) they have hair during some part of their lives. D) at one point in their evolutionary history, they possessed a tail. E) aerobic metabolism uses hemoglobin for oxygen transport.
? The tertiary structure of a protein is ____.
a. the amino acid sequence in a polypeptide chain
b. generated by the formation of bonds between amino acids
c. formed by a protein region folding on itself
d. formed by the interaction of two or more polypeptide chain
e. generated by bonding and folding of ribosomes attached to the endoplasmic reticulum