BSC 2011 Sample questions: Test 2

1). 	"Red tides" are caused by large numbers of:
	a) dinoflagellates          b) zooflagellates
	c) green algae              d) diatoms


2). 	The genus Dictyostelium is used commercially for : _________________

	____________________________________________________________________


3).	Roughly how many species are in the phylum Ascomycetes?
	a) 1,000          b) 60,000          c) 10,000          d) 30,000


4).	"Fly agaric" is the common name for the genus __1__ which is a __2__
	a) Armillaria ; ascomycete          b) Amanita ; ascomycete
	c) Armillaria ; basidiomycete       d) Amanita ; basidiomycete


5).	What type of carbohydrate do red algae (Rhodophyta) store ?
	a) plant starch          b) leucosin
     	c) glycogen              d) floridean starch


6).	Peanuts infected by the fungus __________________ contain chemicals
	called aflatoxins which increase the risk of ____________ cancer


7).	Which phylum includes the genus Giardia ?  
	a) Actinopoda     b) Metamonada     c) Kinetoplastida   d) Rhizopoda


8).	List the two classes of Actinopods and give a brief description :
	
	Class : ______________ ; ___________________________________________

	Class : ______________ ; ___________________________________________


9).	Myxomycota are called ___ and are usually orange or yellow.
	a) slime molds              b) mushrooms
	c) slime balls              d) edible seaweed


10).	Diatoms are buoyant because they store energy as _____ as well as leucosin.


11).	Which genus of protist has two nuclei per cell and no mitochondria?
	a) Actinophrys      b) Giardia      c) Amoeba      d) Difflugia
	

12).	Coral reefs obtain most of their food from two phyla of algae :
	a) rhodophyta and dinoflagellates      b) chlorophyta and rhodophyta
	c) chlorophyta and diatoms             d) diatoms and dinoflagellates


13).	What is unusual about the genus Pfiesteria ? _______________________

	____________________________________________________________________


14).	What genus of fungus is used to make soy sauce ?  ____________________


15).	What are two commercial uses for diatomaceous earth: 

	_________________________________________________________________


16).  Which genus of protist causes the disease "sleeping sickness"?
	a) Trypanosoma      b) Trichia      c) Treponema    d) Amoeba


17).  What does saprophyte mean? _____________________________________________


18).  What phylum includes the genus Plasmodium? ______________________


19).  Compare how the spores are dispersed in the genus Phallus and Pilobolus:

      Phallus: __________________________________________________________________

	Pilobolus: ________________________________________________________________


20).  The genus Ulva (sea lettuce) is in the phylum:
	a) Bacillariophyta   b) Chlorophyta   c) Dinofalgellate   d) Rhodophyta


21).  Which genus of fungus infects corn, and causes smut? __________________


22).  Blue cheese is made using the genus: _____________________


23).  What are two similarities between chlorophyta (green algae) and green plants?
      ____________________________________________________________________________________


24).  Dermatophytes are in the phylum: ____________________________


25).  How many spores are produced in a single ascus?
      a)  1          b) 2            c) 4             d) 8           e) 6