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PLPA Midterm 1 – Practice Questions, Study Guide & Plant Pathology Exam Review 2026-4.docx
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Cysts produced by nematodes - correct answer ✔✔are protective egg-filled structures Plant parasitic nematodes can be differentiated from non-plant parasitic nematodes by the presence of a - correct answer ✔✔Stylet The motile propagule of the Oomycetes that actively seeks the plant root - correct answer ✔✔Zoospores an organism which lives mostly on a decaying organic matter, but can live on living host under certain conditions is a(n): - correct answer ✔✔Facultative parasite Deuteromycetes reproduce with which of the following spore types: A- Ascospores B-Basidiospores C-Conidia D- Oospores E- None of the above - correct answer ✔✔C- Condia A perfect fungus is a fungus that: - correct answer ✔✔possesses a sexual stage Nematodes are found in the kingdom: - correct answer ✔✔Animalia Which of the following is not a method of virus transmission:
A- Vegetative Propagation B- Insect Feeding C- Seedborne Transmission D- Human Activities E- Windborne Dissemination - correct answer ✔✔E- Windborne Dissemination A disease that goes through more than one life cycle in a single season is: - correct answer ✔✔Polycyclic Rank the disease pathogens from largest to smallest - correct answer ✔✔Parasitic Plant, Fungi, Nematode, Bacteria, Viruses Ergot berries and sclerotia, are: - correct answer ✔✔persistent survival structures An organism which lives on nonliving organic matter is a(n) - correct answer ✔✔Saprophyte Which is a type of nematode that moves freely outside of plant roots - correct answer ✔✔Ectoparasitic the purpose of "Koch's Postulates" is - correct answer ✔✔accurately identify a disease-causing organism Infection by the pathogen causing ergot occurs when: - correct answer ✔✔Ascospores germinate on grass florets Which of the following is a plant pathogen? A- Claviceps purpurea
F) Stunting - correct answer ✔✔B) Cysts What structure is formed by both fungi and parasitic plants. - correct answer ✔✔Haustoria Which of the following is a plant disease: A- Claviceps purpurea B- Cedar Apple Rust C- Ustilaginales D- Tobacco Mosaic E- Phytophthora sojae - correct answer ✔✔B) Cedar Apple Rust