24 Questions
What are the three domains of life?
Archaea, Bacteria, Eukarya
Where can bacteria be found?
Ocean, hot springs, swamps
What did cyanobacteria contribute to the Earth?
Added oxygen through photosynthesis
What is a difference between bacteria and archaea regarding their cell wall?
Bacteria has peptidoglycan, archaea does not
What is an endospore?
A resistant protein coat that protects bacteria DNA
What are diatoms known for?
Having a glass-like wall
What substance do red algae use to mask their green color?
Phycoerythrin
What is the result of plasmogamy in fungi?
Heterokaryotic cells
What is the sexual reproduction structure in ascomycetes?
Ascocarps
What type of fungi has flagellated spores?
Chytrids
What are the three mechanisms of genetic recombination in bacteria?
bacterial conjugation, natural transformation, and transduction
What is the potential consequence of using fungicide in grape-growing?
It might kill mutualistic mycorrhizae fungi
Why can't viruses produce their own proteins?
Due to the lack of ribosomes
What traits are used to classify viruses?
Nucleic acid type, capsid type, presence/absence of envelope
Why are viruses not considered living organisms?
No cells and require a host organism to reproduce
What are the differences between the lytic and lysogenic cycle?
Lytic: immediate cell destruction Lysogenic: viral genome integrates into host genome and can remain dormant
What is antigenic drift and antigenic shift?
Antigenic drift: small changes in virus genetic material Antigenic shift: major changes through reassortment or recombination
What percentage of the human genome is composed of ancient viral DNA?
8%
What reinforces the cell wall of fungi?
Chitin
What is the difference between separate fungi and coenocytic fungi?
Separate fungi have distinct cell walls, while coenocytic fungi have multinucleated cells without distinct cell walls
What is plasmogamy?
Fusion of cytoplasm
What are the two types of mycorrhizal fungi?
Ectomycorrhizal and Arbuscular
What is lichen?
Filamentous fungi and cyanobacteria or algae
What percentage of plants form a mutualistic relationship with arbuscular mycorrhizae?
85%
Test your knowledge about algae and protists with this quiz covering topics such as recombination, algin producers, mitosomes, flagellum structure, and more.
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