BIO 205 Topic 4 Study Guide- Questions and Correct Answers
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Module
BIO 205
Institution
BIO 205
Describe the characteristics and roles of algae. Cellulose in cell wall producers of O2 consumers of O2
Irish potato famine caused by water mold phytophthora infest ants
Fungi cell wall contains chitin
Structure of fungi multicellular; composed of hyphae
Hyphae The branching, threadlike tubes t...
BIO 205 Topic 4 Study Guide - Questions and Correct Answers Describe the characteristics and roles of algae. ✅Cellulose in cell wall producers of O2 consumers of O2 Irish potato famine ✅caused by water mold phytophthora infest ants Fungi cell wall contains ✅chitin Structure of fungi multicellular; composed of ✅hyphae Hyphae ✅The branching, threadlike tubes that make up the bodies of multicellular fungi visible mass of hyphae is ✅mycelium Mycelium ✅densely branched network of the hyphae of a fungus Fungi: molds, yeast, mushrooms, refers to ✅morphological forms Explain why algae are important to human existence. ✅They produce oxygen. THEY PRODUCE THE MOST OXYGEN Describe the structure of macroscopic algae ✅use holdfast to anchor and use stipe to stalk leaf like structure - blade source of agar ✅red algae Diatoms incorporate ______ into cell walls; deposits mined for ________________ ✅Silicone dioxide Diatomaceous earth used as filters Dimorphic fungi can grow as _______ or _______ ✅single yeast cells or multicellular mycelia Reproductive spores easily airborne cause ✅disease Fungal spores trigger ✅asthma attack Lichens are association of _____ and ______ ✅fungus and alga or cyanobacterium Describe the role of algae in paralytic shellfish poisoning ✅Shellfish feed off of GONYAULAX GONYAULAX - produce neurotoxins and do not get denatured by heat Myocorrhizaes benefit plants by ✅high surface area of hyphae supplies plant with water, minerals, nitrogen, and phosphorus some plants (orchids) require mycorrhiza to ✅survive parasitic fungi have specialized hyphae called ✅haustoria Fungus growing in/on the body causes ✅mycoses(disease) Toxins produced by Aspergillus species; found in grains, peanuts; carcinogenic called ✅aflatoxins Economic importance of fungi include ✅antibiotics food(bakery,brewery,diary) spoilers of food crop diseases list the characteristics of protozoans ✅Eukaryotes unicellular no chloroplasts grouping based on locomotion eat bacteria and algae how do protozoans move ✅flagella, cilia, pseudopodia _______ protozoans can exist in two forms. ✅Polymorphic in TROPHOZITE or CYST what form of protozoa is resistant to stomach acid ✅polymorphic cyst multiple fission of a protozoa ✅schizogony _______ causes maleria ✅plasmodium Three causative agents ✅plasmodium (maleria) trypanosome(sleeping sickness) entamoeba histolytic (amebiasis)
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