Chapter 2, Problem 9E

Are gills internal or external?

Differentiate between free, adnexed, adnate, decurrent, and emarginate gills. Define marginate gills and "waxy" with respect to gill thickness. Differentiate between the partial veil (annulus) and the universal veil (volva). Define germ pore. Differentiate between amyloid, dextrinoid (pseuodamyloid), and inamyloid reactions. Describe the reactions that result in cyanophilous structures and metachromatic structures. Describe the mitic system of mushrooms. Define cystidium and identify cystidia by their location in a mushroom using the terms pileocystidium, caulocystidium, pleurocystidium, or cheilocystidium. Describe and differentiate among the four basic arrangements of the gill trama. Differentiate between a derm and a cutis in the pileipellis.

What are gills made of?