Single celled eukaryotic cells belong to which of the following kingdoms?

A. Monera
B. Protista
C. Fungi
D. Animalia
E. Plantae


Ans: B. Protista

Biology & Microbiology

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The commensal Neisseria spp. are often confused with pathogenic gram-negative diplococci. A simple test utilizing a blood agar plate and an antibiotic disk resulting in elongation of the cells assists in the differentiation of these organisms. Which antibiotic disk is utilized in this applica-tion?

a. Cephalosporin b. Vancomycin c. Penicillin d. Metronidazole

Biology & Microbiology

Which organisms would be part of a grazing food chain but not a detrital food chain?

a. herbivores b. detritivores c. bacteria d. worms e. producers

Biology & Microbiology

What happens first after chlorophyll absorbs light energy?

A) Water splits into H+ and O2. B) Hydrogen ions combine with electrons to produce NADPH. C) Electrons are released and move to a higher energy level. D) Carbon dioxide is converted to sugar.

Biology & Microbiology

Antibodies are

A. specific molecules, or parts of molecules, that the body recognizes as foreign. B. enzymes secreted to destroy a pathogen's cell wall. C. proteins on the surface of our cells to which pathogens attach. D. cells that protect the body against invaders. E. proteins the body produces against invading substances.

Biology & Microbiology