29. Which of the following is not considered a microorganism A. mosquito B. protozoa C. bacteria D. viruses 30. The transfer of genes during bacterial conjugation involves rigid, tubular appendages called A. flagella B. cilia C. fimbriae D. pili 31. Rod shaped bacteria arranged in a chain are known as A. spirochetes B. spirilla C. streptobacilli D. coccus 32. Which of the following statements about protozoans is false? a) They are unicellular eukaryotes that demonstrate animal-like characteristics in both food consumption and motility. b) They only enter into parasitic relationships with a host. c) They have cellular features like flagella, cilia and pseudopodia that help attain food and aid movement. d) They may have complex life cycles alternating between cyst and trophozoite stages. 33. Which description(s) is(are) true of algae? a) They are all singled celled organisms. b) They are found in only saltwater habitats. c) The oxygen gas produced and exported by these photosynthetic microbes makes life possible for all organisms using aerobic respiration. d) Numerous pathogens are classified as algae. 34. Which of the following is a tenet of the Cell Theory? 1) All organisms are composed of one or more cells. 2) The cell is the structural unit of life. 3) Cells can arise only by division from a preexisting cell. 4) Cells divide only by fission. a) 1 b) 2 c) 3 d) 4 e) 1,2 and 3 35. The structure of the plasma membrane is most appropriately described as a) a thick peptidoglycan layer with lipoteichoic acid b) a phospholipid bilayer with proteins c) a semi-permeable monolayer with phosphate groups d) a thin murien layer with high amino acid content .

1. 29. Which of the following is not considered a microorganism A. mosquito B. protozoa C.
bacteria D. viruses 30. The transfer of genes during bacterial conjugation involves rigid, tubular
appendages called A. flagella B. cilia C. fimbriae D. pili 31. Rod shaped bacteria arranged in a
chain are known as A. spirochetes B. spirilla C. streptobacilli D. coccus 32. Which of the
following statements about protozoans is false? a) They are unicellular eukaryotes that
demonstrate animal-like characteristics in both food consumption and motility. b) They only
enter into parasitic relationships with a host. c) They have cellular features like flagella, cilia and
pseudopodia that help attain food and aid movement. d) They may have complex life cycles
alternating between cyst and trophozoite stages. 33. Which description(s) is(are) true of algae? a)
They are all singled celled organisms. b) They are found in only saltwater habitats. c) The
oxygen gas produced and exported by these photosynthetic microbes makes life possible for all
organisms using aerobic respiration. d) Numerous pathogens are classified as algae. 34. Which of
the following is a tenet of the Cell Theory? 1) All organisms are composed of one or more cells.
2) The cell is the structural unit of life. 3) Cells can arise only by division from a preexisting cell.
4) Cells divide only by fission. a) 1 b) 2 c) 3 d) 4 e) 1,2 and 3 35. The structure of the plasma
membrane is most appropriately described as a) a thick peptidoglycan layer with lipoteichoic
acid b) a phospholipid bilayer with proteins c) a semi-permeable monolayer with phosphate
groups d) a thin murien layer with high amino acid content