What is the intensity of that color?

a. 25
b. 50
c. 75
d. 100


d

Biology & Microbiology

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Referring to the figure, an average bacterium is roughly the same size as which eukaryotic organelle?



a. lipid
b. protein
c. mitochondria
d. egg

Biology & Microbiology

A pharmaceutical company develops a drug inhibiting mitosis of sporozoites in an effort to prevent malaria.  How would this affect the next step of the infection cycle of Plasmodium falciparum?

A. Infected red blood cells would not attach to the linings of capillaries. B. Merozoites would not be produced. C. Gametes would not be produced. D. Infected red blood cells would not burst. E. Gametocytes would not be produced. 

Biology & Microbiology

A probable sequence of the evolution of cells was 

A. autotroph ® aerobic heterotroph ® anaerobic heterotroph. B. anaerobic heterotroph ® aerobic heterotroph ® autotroph. C. anaerobic heterotroph ® autotroph ® aerobic heterotroph. D. aerobic heterotroph ® autotroph ® anaerobic heterotroph.

Biology & Microbiology

What is common to all of the oxidation reactions in the Krebs cycle?  

A.  They all lead to the generation of NADH. B.  They are all decarboxylation reactions. C.  They are all characterized by a loss of electrons from an organic molecule coupled to the reduction of an electron acceptor. D.  They all lead to substrate-level phosphorylation of ADP to generate ATP.

Biology & Microbiology