BIO 250 MICROBIOLOGY PRACTICE EXAM
PAPER 2026 QUESTIONS WITH ANSWERS
GRADED A+
◉ What were the early derived prokaryote types? Answer: archaea and
bacteriea
◉ What are the three main categories of organisms? Answer: domain
archaea, domain bacteria, domain eukarya
◉ Linnaeus. Answer: developed taxonomic system
◉ taxonomic system. Answer: a system used to name plants and animals
and to group similar organisms together
◉ What were the six basic categories of microorganisms as depicted by
van Leeuwenhoek? Answer: bacteria, archaea, fungi, protozoa, algae,
and small multicellular animals
◉ van Leeuwenhoek. Answer: first discovered the bacterial world
◉ prokaryotic. Answer: the cells lack a nucleus
,◉ Are bacteria and archaea prokaryotic or eukaryotic? Answer:
prokaryotic
◉ What are bacterial cell walls made up of? Answer: peptidoglycan
(although some lack cell walls)
◉ What are archaeal cell walls made up of? Answer: no peptidoglycan;
made of other chemicals
◉ How do bacteria and archaea reproduce? Answer: asexually
◉ Are archaea know to cause disease in humans? Answer: no
◉ What two things degrade dead plants and animals to release
phosphorus, sulfur, nitrogen, and carbon back into the air, soil, and
water? Answer: bacteria and fungi
◉ fungi. Answer: -eukaryotic
-get food from other organisms
-microscopic fungi include some molds and yeasts
◉ eukaryotic cells. Answer: have a nucleus
, ◉ mold. Answer: (usually) multicellular organisms that grow as long
filaments that intertwine to make up the body of the mold
◉ How does mold reproduce? Answer: sexual and asexual spores
◉ What do fungal reproductive spores do? Answer: produce a new
individual without fusing with another cell
◉ yeast. Answer: unicellular and round cells
◉ How does yeast reproduce? Answer: asexually by budding; some can
reproduce sexually
◉ budding. Answer: a process in which daughter cells grow off of
mother cells
◉ protozoa. Answer: single-celled eukaryotes that are similar to animals
in their nutritional needs and cellular structure; most are capable of
locomotion
◉ How do scientists categorize protozoa? Answer: by their locomotive
structures
PAPER 2026 QUESTIONS WITH ANSWERS
GRADED A+
◉ What were the early derived prokaryote types? Answer: archaea and
bacteriea
◉ What are the three main categories of organisms? Answer: domain
archaea, domain bacteria, domain eukarya
◉ Linnaeus. Answer: developed taxonomic system
◉ taxonomic system. Answer: a system used to name plants and animals
and to group similar organisms together
◉ What were the six basic categories of microorganisms as depicted by
van Leeuwenhoek? Answer: bacteria, archaea, fungi, protozoa, algae,
and small multicellular animals
◉ van Leeuwenhoek. Answer: first discovered the bacterial world
◉ prokaryotic. Answer: the cells lack a nucleus
,◉ Are bacteria and archaea prokaryotic or eukaryotic? Answer:
prokaryotic
◉ What are bacterial cell walls made up of? Answer: peptidoglycan
(although some lack cell walls)
◉ What are archaeal cell walls made up of? Answer: no peptidoglycan;
made of other chemicals
◉ How do bacteria and archaea reproduce? Answer: asexually
◉ Are archaea know to cause disease in humans? Answer: no
◉ What two things degrade dead plants and animals to release
phosphorus, sulfur, nitrogen, and carbon back into the air, soil, and
water? Answer: bacteria and fungi
◉ fungi. Answer: -eukaryotic
-get food from other organisms
-microscopic fungi include some molds and yeasts
◉ eukaryotic cells. Answer: have a nucleus
, ◉ mold. Answer: (usually) multicellular organisms that grow as long
filaments that intertwine to make up the body of the mold
◉ How does mold reproduce? Answer: sexual and asexual spores
◉ What do fungal reproductive spores do? Answer: produce a new
individual without fusing with another cell
◉ yeast. Answer: unicellular and round cells
◉ How does yeast reproduce? Answer: asexually by budding; some can
reproduce sexually
◉ budding. Answer: a process in which daughter cells grow off of
mother cells
◉ protozoa. Answer: single-celled eukaryotes that are similar to animals
in their nutritional needs and cellular structure; most are capable of
locomotion
◉ How do scientists categorize protozoa? Answer: by their locomotive
structures
