Which of the following is mainly produced during cyclic electron flow?
A. water
B. NADPH
C. sugar
D. ATP
E. O2
D. ATP
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About 10?15% of African Americans are carriers for ____, an autosomal recessive genetic disorder
where a defective version of hemoglobin is produced.
a. Duchenne muscular dystrophy b. phenylketonuria c. achondroplasia d. sickle-cell disease e. cystic fibrosis
Inside root cells, ____ is converted to ____, which is then rapidly used to synthesize organic
molecules.
a. NH4 +; NO3 ? b. N2; NO3 ? c. NO3 ?; NH4 + d. NH3; NH4 + e. NO3 ?; N2
Which of the following are phagocytic glial cells that fight infection and remove debris?
A) microglia B) oligodendrocytes C) Schwann cells D) myelin sheath cells E) astrocytes
Sponges (phylum: Porifera) are animals that possess feeding cells called collar cells. These cells have a central flagellum surrounded by a collar of microvilli. The collar filters organic matter out of the water column. Which protist shares a more recent common ancestor with the poriferans?
A. Ciliates B. Radiolarians C. Choanoflagellates D. Rhodophyta E. Myxomycota