The photosystem channels the excitation energy gathered by absorption of light by any one of the pigment molecules to a specific reaction center chlorophyll, which in turn passes the energy to
A. photosystem I.
B. photosystem II.
C. the primary electron acceptor.
D. the secondary electron center.
E. cytochrome.
C. the primary electron acceptor.
Biology & Microbiology
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An extreme case of Rh disease is known as
a. hemolytic disease of the newborn. b. Down syndrome. c. Tay-Sachs disease. d. sickle cell anemia. e. polycythemia.
Biology & Microbiology
Is most of our DNA made up of genes?
A) Yes, the vast majority of human DNA consists of genes. B) No, genes make up only 1.5% of our DNA.
Biology & Microbiology
Which of the following is the smallest structure?
a) muscle cell b) muscle c) myofibril d) sarcomere
Biology & Microbiology
Synthetic auxin can be used as a(n) ____.
A. pesticide B. herbicide C. fungicide D. insecticide E. bactericide
Biology & Microbiology