A modified cell membrane that carries out photosynthesis using bacteriorhodopsin in the absence of chlorophyll is called a ________ membrane.
A. colorless
B. purple
C. orange
D. green
Answer: B
Biology & Microbiology
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Which of the following types of organisms are based on cellular life?
A. bacteria B. yeast C. plants D. animals E. All living organisms are based on cells.
Biology & Microbiology
Gyres are divided into the following types of currents (named below) except
a. Ekman spiral. b. eastern boundary. c. western boundary. d. transverse.
Biology & Microbiology
Franklin worked closely with
a. Wilkins. b. Watson. c. Crick. d. Chargaff. e. none of these.
Biology & Microbiology
A population of Escherichia coli doubles about every ____________ in a laboratory culture.
a. 2 hours b. 20 minutes c. 2 minutes
Biology & Microbiology