Rio Salado B io 205 m idter m exam
question s and answ er s alr eady
gr aded A+
Pathogenic - answer disease producing
Types of microbes - answer 1.Bacteria
2.Archea
3.Fungi
4.Protozoa
5.Algae
6.Viruses
7. Parasites
Bacteria - answer single celled, genetic material not enclose in membrane, some
can complete photosynthesis, some can swim using flagella
Bacteria are enclose in: - answer Cell walls made of peptoglycan
Bacterial Cells are called? - answer Prokaryotes
Bacterial Cell Shapes (3) - answer 1. Bacillus (rods)
2. Coccus (spherical)
,3. Spiral
Prokaryotes include both: - answer Bacteria and archeas
Bacterial reproduction - answer Binary Fission: divide into two equal cells
Archea - answer consist of prokaryotic cells, found in extreme environments, does
not cause disease in humans
Peptoglycan - answer a polymer consisting of sugars and amino acids that forms a
mesh layer around the plasma membrane
Is peptoglycan found in archea - answer no
3 main groups of archea - answer 1. Methanogens: produce methane as a waste
product from respiration
2. extreme halophiles: live in extremely salty environments
3. Extreme thermophiles: live in hot sulfurous water (hot springs)
Eukaryotes - answer have a distinct nucleus containing DNA surrounded by the
nuclear membrane
Fungi - answer eukaryotic, unicellular/multicellular, cell walls composed of chitin,
can reproduce sexually/asexually, feed on organic material from their environment
, Unicellular form of fungi: - answer yeasts (oval microbes, larger than bacteria)
Most popular fungi - answer molds (form visible masses called mycelia)
Protozoa - answer unicellular, eukaryotic microbes, various shapes, live as free
entities or as parasites.
How do protozoa move and reproduce: - answer pseudopods, flagella, or cilia. Can
reproduce asexually and sexually.
Algae - answer photosynthetic eukaryotes, various shapes, reproduce sexually and
asexually. Need light, water and carbon dioxide for food production and growth.
Play important role in balance of nature
Algae cell wall: - answer composed of cellulose
Algae found in: - answer fresh/salt water, soil and associated with plants
Viruses - answer very small (only be seen with electron microscope), acellular,
Virus Structure - answer contains a core made of one type of nucleic acid (DNA or
RNA). core is surrounded by protein coat . Sometimes coat is encased by an
additional lipid membrane
question s and answ er s alr eady
gr aded A+
Pathogenic - answer disease producing
Types of microbes - answer 1.Bacteria
2.Archea
3.Fungi
4.Protozoa
5.Algae
6.Viruses
7. Parasites
Bacteria - answer single celled, genetic material not enclose in membrane, some
can complete photosynthesis, some can swim using flagella
Bacteria are enclose in: - answer Cell walls made of peptoglycan
Bacterial Cells are called? - answer Prokaryotes
Bacterial Cell Shapes (3) - answer 1. Bacillus (rods)
2. Coccus (spherical)
,3. Spiral
Prokaryotes include both: - answer Bacteria and archeas
Bacterial reproduction - answer Binary Fission: divide into two equal cells
Archea - answer consist of prokaryotic cells, found in extreme environments, does
not cause disease in humans
Peptoglycan - answer a polymer consisting of sugars and amino acids that forms a
mesh layer around the plasma membrane
Is peptoglycan found in archea - answer no
3 main groups of archea - answer 1. Methanogens: produce methane as a waste
product from respiration
2. extreme halophiles: live in extremely salty environments
3. Extreme thermophiles: live in hot sulfurous water (hot springs)
Eukaryotes - answer have a distinct nucleus containing DNA surrounded by the
nuclear membrane
Fungi - answer eukaryotic, unicellular/multicellular, cell walls composed of chitin,
can reproduce sexually/asexually, feed on organic material from their environment
, Unicellular form of fungi: - answer yeasts (oval microbes, larger than bacteria)
Most popular fungi - answer molds (form visible masses called mycelia)
Protozoa - answer unicellular, eukaryotic microbes, various shapes, live as free
entities or as parasites.
How do protozoa move and reproduce: - answer pseudopods, flagella, or cilia. Can
reproduce asexually and sexually.
Algae - answer photosynthetic eukaryotes, various shapes, reproduce sexually and
asexually. Need light, water and carbon dioxide for food production and growth.
Play important role in balance of nature
Algae cell wall: - answer composed of cellulose
Algae found in: - answer fresh/salt water, soil and associated with plants
Viruses - answer very small (only be seen with electron microscope), acellular,
Virus Structure - answer contains a core made of one type of nucleic acid (DNA or
RNA). core is surrounded by protein coat . Sometimes coat is encased by an
additional lipid membrane
