BIOLOGY 1500 LAB EXAM 1
QUESTIONS AND ANSWERS
How are organisms lumped into the protist group? Is this group a true kingdom? -
ANSWER-(anything that isn't a plant, animal, or fungi)
-all protists should be separated into four supergroups based on molecular
comparisons
-genetic/genomic analyses have changed the way organisms are classified
-clades are not kingdoms, phylum, or other taxonomic category
What are the various forms of locomotion used by the different groups? - ANSWER-
flagella - supergroup excavata
pseudopodia - supergroup amoebozoa
cilia - supergroup SAR ciliates
What is the difference between unicellular, colonial and multicellular? Know some
representatives of each. - ANSWER-unicellular: organism is composed of one cell
colonial: individual protists that form a colony and act as a larger, multicellular
organism
multicellular: having or consisting of many cells
What is the difference between autotrophic, heterotrophic, and mixotrophic? Know
some representatives of each. - ANSWER-autotrophic: organism that produces its
own food
heterotrophic: organism that gets its food from other sources
mixotrophic: autotrophic and heterotrophic; photosynthetic but can also be
heterotrophic
Can you provide examples of protists that are important ecologically? In what ways?
- ANSWER-diatoms = incredibly important food source in aquatic ecosystems
green algae = important in aquatic and marine ecosystems; primary producers
What distinguishes fungi from other groups of organisms? - ANSWER-eukaryotic
heterotrophs composed of hyphae and chitin
What are the different phyla of fungi and what distinguishes one from the other in
terms of:
-Body plan and cell/hyphal structure
-Reproduction and reproductive structures - ANSWER--phylum chytridiomycota
-phylum zygomycota
-phylum ascomycota
-phylum basidiomycota
What roles do fungi play in the environment in terms of ecological food web roles
and symbiotic relationships? - ANSWER-mutualistic relationships = mycorrhizae and
lichens
QUESTIONS AND ANSWERS
How are organisms lumped into the protist group? Is this group a true kingdom? -
ANSWER-(anything that isn't a plant, animal, or fungi)
-all protists should be separated into four supergroups based on molecular
comparisons
-genetic/genomic analyses have changed the way organisms are classified
-clades are not kingdoms, phylum, or other taxonomic category
What are the various forms of locomotion used by the different groups? - ANSWER-
flagella - supergroup excavata
pseudopodia - supergroup amoebozoa
cilia - supergroup SAR ciliates
What is the difference between unicellular, colonial and multicellular? Know some
representatives of each. - ANSWER-unicellular: organism is composed of one cell
colonial: individual protists that form a colony and act as a larger, multicellular
organism
multicellular: having or consisting of many cells
What is the difference between autotrophic, heterotrophic, and mixotrophic? Know
some representatives of each. - ANSWER-autotrophic: organism that produces its
own food
heterotrophic: organism that gets its food from other sources
mixotrophic: autotrophic and heterotrophic; photosynthetic but can also be
heterotrophic
Can you provide examples of protists that are important ecologically? In what ways?
- ANSWER-diatoms = incredibly important food source in aquatic ecosystems
green algae = important in aquatic and marine ecosystems; primary producers
What distinguishes fungi from other groups of organisms? - ANSWER-eukaryotic
heterotrophs composed of hyphae and chitin
What are the different phyla of fungi and what distinguishes one from the other in
terms of:
-Body plan and cell/hyphal structure
-Reproduction and reproductive structures - ANSWER--phylum chytridiomycota
-phylum zygomycota
-phylum ascomycota
-phylum basidiomycota
What roles do fungi play in the environment in terms of ecological food web roles
and symbiotic relationships? - ANSWER-mutualistic relationships = mycorrhizae and
lichens
