BIOS242 EXAM SCRIPT UPDATED
COMPLETE QUESTIONS AND ANSWERS
EXPERT REVIEWED
●● Antoni van Leeuwenhoek
Answer: he began making and using simple microscopes, and often
made a new microscope for each specimen
●● bacteria, archaea, fungi, protozoa, algae, and small multicellular
animals
Answer: Leeuwenhoek's microorganism classifications
●● bacteria and archaea
Answer: unicellular and lack nuclei, much smaller than eukaryotes,
found everywhere there is sufficient moisture, reproduce asexually
●● bacteria
Answer: peptidoglycan
●● fungi
Answer: eukaryotic (have membrane-bound nucleus), obtain food from
other organisms, and possess cell walls
,●● two categories of fungi
Answer: molds and yeasts
●● molds
Answer: multicellular; grow a long filaments; reproduce by sexual and
asexual spores
●● yeasts
Answer: unicellular; reproduce asexually by budding; some produce
sexual spores
●● protozoa
Answer: single celled eukaryotes, similar to animals in nutrient needs
and cellular structures, live freely in water, asexual, most are capable of
locomotion
●● pseudopods
Answer: cell extensions that flow in direction of travel
●● cilia
Answer: numerous short protrusions that propel organisms through its
environment
, ●● flagella
Answer: extensions of a cell that are fewer, longer, and more whiplike
than cilia
●● algae
Answer: can be unicellular or multicellular, photosynthetic, simple
reproductive structures, and categorized based on pigmentation and
composition of cell wall
●● Aristotle
Answer: who first proposed spontaneous generation
●● spontaneous generation
Answer: living things can arise from nonliving matter
●● Redi's experiments
Answer: -When decaying meat was kept isolated from flies, maggots
never developed
-Meat exposed to flies was soon infested
-As a result, scientists began to doubt Aristotle's theory
●● Needham's experiments
COMPLETE QUESTIONS AND ANSWERS
EXPERT REVIEWED
●● Antoni van Leeuwenhoek
Answer: he began making and using simple microscopes, and often
made a new microscope for each specimen
●● bacteria, archaea, fungi, protozoa, algae, and small multicellular
animals
Answer: Leeuwenhoek's microorganism classifications
●● bacteria and archaea
Answer: unicellular and lack nuclei, much smaller than eukaryotes,
found everywhere there is sufficient moisture, reproduce asexually
●● bacteria
Answer: peptidoglycan
●● fungi
Answer: eukaryotic (have membrane-bound nucleus), obtain food from
other organisms, and possess cell walls
,●● two categories of fungi
Answer: molds and yeasts
●● molds
Answer: multicellular; grow a long filaments; reproduce by sexual and
asexual spores
●● yeasts
Answer: unicellular; reproduce asexually by budding; some produce
sexual spores
●● protozoa
Answer: single celled eukaryotes, similar to animals in nutrient needs
and cellular structures, live freely in water, asexual, most are capable of
locomotion
●● pseudopods
Answer: cell extensions that flow in direction of travel
●● cilia
Answer: numerous short protrusions that propel organisms through its
environment
, ●● flagella
Answer: extensions of a cell that are fewer, longer, and more whiplike
than cilia
●● algae
Answer: can be unicellular or multicellular, photosynthetic, simple
reproductive structures, and categorized based on pigmentation and
composition of cell wall
●● Aristotle
Answer: who first proposed spontaneous generation
●● spontaneous generation
Answer: living things can arise from nonliving matter
●● Redi's experiments
Answer: -When decaying meat was kept isolated from flies, maggots
never developed
-Meat exposed to flies was soon infested
-As a result, scientists began to doubt Aristotle's theory
●● Needham's experiments
