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CSU Life 103 Lab
Biology of Organisms Lab Week 2
52
Biology
Undergraduate 1
02/05/2013

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Cards

Term
What have been characterized based on the following characteristics: Pigments, cell wall chemistry, food storage compounds, and presence or absence of flagella?
Definition
Algal groups.
Term
What is a generic term used to describe a number of different plant-like protists?
Definition
Algae.
Term
What compose the largest group of algae?
Definition
Diatoms.
Term
What are usually single-celled and motile and are primarily found suspended in fresh or salt water as plankton?
Definition
Diatoms.
Term
What organisms' cell walls are an intricate lattice of organic matter and silicon dioxide?
Definition
Diatoms.
Term
How do Diatoms usually reproduce?
Definition
Usually asexually through mitosis but on occasion can produce eggs and sperm.
Term
What is the second largest group of algae?
Definition
Green algae.
Term
What subgroup of green algae includes the closet living relatives to true plants?
Definition
Charophyceans.
Term
What makes brown algae brown or olive in color?
Definition
The carotenoid pigment fucoxanthin.
Term
What makes red algae appear reddish in color?
Definition
The pigment phycoerythrin.
Term
Where would some red algae look black? Greenish?
Definition
Deep-water habitat. Shallow water habitat.
Term
All of the brown algae and most of the red algae are what?
Definition
Multicellular.
Term
The largest and most complex brown algae, most of the red algae, and a few large green algae are what?
Definition
Seaweeds.
Term
Seaweed anatomy can be so advanced as to mimic the body plan of true plants. What are three ways they mimic true plants?
Definition
Root-like holdfast, stem-like stipe, and leaf-like blades.
Term
What gelatinous polymers are produced in brown algal cell walls?
Definition
Algin or alginates.
Term
What gelatinous polymers are produced in red algal cell walls?
Definition
Agar and carrageenan.
Term
What can the gelatinous polymers produced in algal cell walls be used for?
Definition
Thickening agents and emulsifiers.
Term
What domain are cyanobacteria a subgroup of?
Definition
Bacteria.
Term
Cyanobactera are prokaryotic or eukaryotic?
Definition
Prokaryotic.
Term
Where are cyanobacteria usually found?
Definition
Ocean waters, marshes and mud flats.
Term
What form are cyanobacteria usually found?
Definition
Filamentous (thread-like).
Term
How do cyanobacteria reproduce?
Definition
Asexually only.
Term
Why were fungi historically classified with plants?
Definition
They both have cell walls.
Term
What does it mean that fungi are heterotrophic?
Definition
They feed on organic matter that originated from other organisms?
Term
What kingdom are fungi recognized as part of?
Definition
Fungi.
Term
Fungi are primary __________ of organic matter.
Definition
Decomposers.
Term
What type of fungi feed on living organic matter?
Definition
Parasitic.
Term
What type of fungi feed on dead organic matter?
Definition
Saprobic.
Term
What is a tubular, threadlike filament of a fungus?
Definition
Hypha.
Term
What is a mass of hyphae?
Definition
Mycelium.
Term
What is the reproductive structure of fungi which bears sexually produced spores?
Definition
Fruiting body.
Term
What type of fungi spend much of their life cycle in a haploid, asexual stage in which sporangia are produced on erect hyphae and make haploid spores through mitosis?
Definition
Zygomycetes.
Term
What type of fungi includes the common mushroom as well as other fungi that are conspicuous due to their large fruiting bodies?
Definition
Basidiomycota.
Term
How do basidiomycota reproduce?
Definition
Some asexually, others sexually.
Term
What are the club-shaped cells called on the large fruiting body of basidiomycota?
Definition
Basidia (singular basidium).
Term
What are the sexually produced spores on the surface of basidia referred to as?
Definition
Basidiospores.
Term
What is the largest group of fungi?
Definition
Ascomycota.
Term
What is the fruiting body of Ascomycota that bears sexually produced spores in sacs called?
Definition
Asci (singular ascus).
Term
Where does meiosis occur in Ascomycota? What does it produce?
Definition
In the ascus. Ascospores.
Term
What informal group of fungi is composed of organisms for which no sexual reproductive stage has been observed?
Definition
Deuteromycetes (imperfect fungi).
Term
What are composed of a specific fungal component and one of several commonly found cyanobacteria or green algae living in close association with each other?
Definition
Lichens.
Term
Which part of a lichen is typically incapable of living on its own?
Definition
The fungal component.
Term
What part of the lichen absorbs water and nutrients for both organisms and provides some protection from the sun?
Definition
Fungal component.
Term
What part of the lichen photosynthesizes, providing food for both organisms?
Definition
The algal (or cyanobacterial) component.
Term
What are the three main lichen body types?
Definition
Foliose, crustose, and fruticose.
Term
What is a multicellular haploid form?
Definition
Gametophyte.
Term
What is a multicellular diploid form?
Definition
Sporophyte.
Term
What form produces haploid gametes that fuse to form a diploid zygote?
Definition
Gametophyte.
Term
Are sporangium haploid or diploid?
Definition
Diploid.
Term
Are spores haploid or diploid?
Definition
Haploid.
Term
Are gametes haploid or diploid?
Definition
Haploid.
Term
Are zygotes haploid or diploid?
Definition
Diploid.
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