It must be allergenic, buoyant, anemophilous, and present in abundance, and the plant producing it must be widely available. - ✔✔ What are the five
... [Show More] requirements of an aeroallergen (derived from Thommen's postulates)?
Monoecious means having both male and female flowers on the same plant. Dioecious means having separate male and female plants. - ✔✔ Define monoecious and dioecious.
Advantages include its ability to obtain quantitative results and the fact that this method is not significantly affected by wind. A disadvantage is its poor collection efficiency for particles <10 µm. - ✔✔ Name an advantage and a disadvantage of the Rotorod.
Perprolate (ie, very elongated). A pollen with a P/E diameter <0.5 is called peroblate (ie, very flattened) - ✔✔ What is a pollen with a P/E diameter >2 called?
It is a pollen aperture type; the term means "three pores" - ✔✔ What is triporate?
Bluegrass, rye, and fescue are the most cross-reactive with timothy. The northern grasses are strongly cross-reactive with each other. - ✔✔ Which of the following grasses are most cross-reactive with Timothy: bahia, Bermuda, bluegrass, Johnson, rye, or fescue?
The pollen most implicated in pollen-food syndrome is Betula (Birch); Bet v 1 and Bet v 2 are the major allergens involved. - ✔✔ Which pollen has been most implicated in pollen-food syndrome? What are the major allergens involved?
Dock or sorrel (Rumex) - ✔✔ Which pollen has starch inclusion granules?
Juniperus ashei (mountain cedar) pollen - ✔✔ A 21-year-old man in San Antonio, Texas, has had rhinorrhea, nasal congestion, and conjunctivitis for several weeks each January for the past 3 years. He is asymptomatic the rest of the year. What is the most likely allergen?
Smallest: Urtica (nettle) at 12-14 µm; Largest: Pinus (pine) at 50-100 µm - ✔✔ Of Lolium, Pinus, Platanus, Quercus, and Urtica, which has the smallest pollen? The largest pollen?
Willow (Salix) is entomophilous (ie, insect pollinated) - ✔✔ Which of the following trees is entomophilous? Ash (Fraxinus), oak (Quercus), poplar (Populus), or willow (Salix)?
The production of an ascus (a saclike structure containing sexual spores) - ✔✔ What is the defining characteristic of the largest phylum of fungi, Ascomycota?
Alternaria - ✔✔ Near-fatal asthma is associated with sensitivity to which mold?
Cladosporium, Aspergillus, and Penicillium - ✔✔ What are the most important indoor molds?
Cladosporium - ✔✔ What is usually the most abundant outdoor mold?
Fusarium species as well as Ascomycota and Basidiomycota - ✔✔ Which mold spores are higher during periods of rain?
10-60 µm - ✔✔ What is the size of aeroallergens?
gravitational sampling and volumetric sampling - ✔✔ What are the two kinds of aeroallergen sampling?
Bermuda, Johnson, Prairie - ✔✔ Bahia grass cross reacts with which other grasses? [Show Less]