BISC 162 Exam Questions and answers with complete solutions Latest Updated 2025
| Verified
1. Low-GC Gram-Positives
2. High-GC Gram-Positives
3. Hyperthermophilic Bacteria
4. Hadobacteria
5. Cyanobacteria
6. Spirochetes
7. Chlamydia
8. Proteobacteria - What are the 8 clades of the Domain Bacteria (in order)
-Form environment resistant endospores
-Smallest Bacteria - Special characteristics of Low GC-Gram Positive bacteria
-Have a high ratio of GC vs. AT in DNA
-Used to develop antibiotics - Special Characteristics of High GC-Gram Positives
(Actinobacteria)
-Thermophiles in hot temps
-Found near volcanic vents and hot springs - Special Characteristics of
Hyperthermophilic Bacteria
-Thermophiles in cold temps
-Source of enzyme for PCR - Special Characteristics of Hadobacteria
-Photoautotrophs- most O2 production on Earth
-Colonies have specialized cell for nitrogen fixation - Special Characteristics of
Cyanobacteria
-Gram-Negative
-Axial filaments
-They are parasites, pathogens or free-living - Special Characteristics of Spirochetes
-Gram-negative
-Solely Parasitic - Special Characteristics of Chlamydias
-Largest number of described species
-Evolutionary origin of mitochondria - Special Characteristics of Proteobacteria
Crenarchaeota and Euryarchaeota - 2 Defined Clades of Archaea
-Poorly described in species number
-Most Crenarchaeota are thermophilic or acidophilic or both
, -Euryarchaeota are methanogens extreme halophiles - What characteristics define
Archaea?
False - T/F: Archaea are extremeophiles
Korarchaeota and Nanoarchaeota - Recently discovered clades in Domain Archaea
1. Alveolates
2. Stramenopiles
3. Excavates
4. Rhizaria
5. Unikonts: Amoebozoans
6. Unikonts: Choanoflagellida - What are 6 clades of protists
Two flagella that are hairy and smooth - Characteristics of Stramenopiles
-No mitochondria
-Secondary symbiosis - Characteristics of Excavates
-Skinny pseudopods
-External shells, tests - Characteristics of Rhizaria
-Lobe-shaped pseudopods - Characteristics of Unikonts: Amoebozoans
-Sister group to animals - Characteristics of Unikonts: Choanoflagellida
Eukarya - What clade does Plante form wthin?
-Green algae are the sister taxa to land plants
-Green Algaea are NOT monophyletic - Characteristics of Clade Plante
-Sister to the rest of plants
-Contain peptidolycan between inner and outer chloroplast membrane - Characteristics
of Clade Glaucophytes
-Use a red as a photosynthetic pigment
-Aquatic (marine and freshwater) - Characteristics of Red Algae
-Largest clade of "green algae"
-Sister to Streptopytes
-Multicellular, unicelluar, colonial - Characteristics of Chlorophytes
-Clade that contains land plants and a few green algae
-Sister to Streptophytes
-Multicellualar, unicellular, colonial - Characteristics of Streptophytes
| Verified
1. Low-GC Gram-Positives
2. High-GC Gram-Positives
3. Hyperthermophilic Bacteria
4. Hadobacteria
5. Cyanobacteria
6. Spirochetes
7. Chlamydia
8. Proteobacteria - What are the 8 clades of the Domain Bacteria (in order)
-Form environment resistant endospores
-Smallest Bacteria - Special characteristics of Low GC-Gram Positive bacteria
-Have a high ratio of GC vs. AT in DNA
-Used to develop antibiotics - Special Characteristics of High GC-Gram Positives
(Actinobacteria)
-Thermophiles in hot temps
-Found near volcanic vents and hot springs - Special Characteristics of
Hyperthermophilic Bacteria
-Thermophiles in cold temps
-Source of enzyme for PCR - Special Characteristics of Hadobacteria
-Photoautotrophs- most O2 production on Earth
-Colonies have specialized cell for nitrogen fixation - Special Characteristics of
Cyanobacteria
-Gram-Negative
-Axial filaments
-They are parasites, pathogens or free-living - Special Characteristics of Spirochetes
-Gram-negative
-Solely Parasitic - Special Characteristics of Chlamydias
-Largest number of described species
-Evolutionary origin of mitochondria - Special Characteristics of Proteobacteria
Crenarchaeota and Euryarchaeota - 2 Defined Clades of Archaea
-Poorly described in species number
-Most Crenarchaeota are thermophilic or acidophilic or both
, -Euryarchaeota are methanogens extreme halophiles - What characteristics define
Archaea?
False - T/F: Archaea are extremeophiles
Korarchaeota and Nanoarchaeota - Recently discovered clades in Domain Archaea
1. Alveolates
2. Stramenopiles
3. Excavates
4. Rhizaria
5. Unikonts: Amoebozoans
6. Unikonts: Choanoflagellida - What are 6 clades of protists
Two flagella that are hairy and smooth - Characteristics of Stramenopiles
-No mitochondria
-Secondary symbiosis - Characteristics of Excavates
-Skinny pseudopods
-External shells, tests - Characteristics of Rhizaria
-Lobe-shaped pseudopods - Characteristics of Unikonts: Amoebozoans
-Sister group to animals - Characteristics of Unikonts: Choanoflagellida
Eukarya - What clade does Plante form wthin?
-Green algae are the sister taxa to land plants
-Green Algaea are NOT monophyletic - Characteristics of Clade Plante
-Sister to the rest of plants
-Contain peptidolycan between inner and outer chloroplast membrane - Characteristics
of Clade Glaucophytes
-Use a red as a photosynthetic pigment
-Aquatic (marine and freshwater) - Characteristics of Red Algae
-Largest clade of "green algae"
-Sister to Streptopytes
-Multicellular, unicelluar, colonial - Characteristics of Chlorophytes
-Clade that contains land plants and a few green algae
-Sister to Streptophytes
-Multicellualar, unicellular, colonial - Characteristics of Streptophytes
