Chapter 13 Biology Word Scramble

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Question	Answer
Malaria is caused by protozoans in the genus	Plasmodium
The term protists is used to refer to	Protozoans and chromists
Most protozoans are	heterotrophic
Some protozoans can form reproductive cells with thick, protective cell walls. These cells are known as	spores
Which of the following are not chromists? paramecia, water molds, diatoms, foraminiferans	paramecia
Which of the following is true of chromists in comparison with protozoans?	Chromists are less likely to have cilia or flagella
In order for an algal bloom to occur, which of the following is necessary? warm water, sufficient oxygen and nutrients, sunlight, all of these	all of these
Fungal cell walls are made of	chitin
What role do fungi play in the environment?	decomposers and pathogens
T/F: Generally speaking, protozoans are autotrophs, while chromists are heterotrophs.	false
T/F: The protozoan shown on the right will move using its cilia.	false
T/F: Many protozoa such as paramecia can reproduce asexually through binary fission.	true
T/F: Kingdom Chromista includes all the photosynthetic protists except algae	false
T/F: Because they are generally autotrophs, most chromists lack the specialized structures found in protozoans.	true
T/F: Unlike protozoans, chromists can reproduce only asexually.	false
T/F: Because protists are relatively simple organisms, their classification has remained largely unchanged since their discovery.	false
includes familiar mushrooms and toadstools along with shelf fungi	Basidiomycota
includes bread molds	Zygomycota
known as sac fungi	Ascomycota
includes the mold Penicillium, from which an antibiotic is made	Ascomycota
produces fruiting bodies that may have stipes, caps, and gills	Basidiomycota
hyphae fuse to form a zygosporangium	Zygomycota
To maintain homeostasis, protozoans expel excess water using a(n)	contractile vacuole
Some protozoans form reproductive ______ that are protected by a thick cell wall.	spores
Sexual reproduction in sporozoans happens during __________ , in which genetic information is exchanged through a plasma bridge.	conjugation
Algae, diatoms, and other chromists that drih in currents are collectively referred to as _________ , an important part of aquatic food webs.	phytoplankton
The most visible and recognizable part of a fungus is its reproductive structure called a(n) _____	fruiting body
a microorganism made of eukaryotic cells	protist
individual organisms of the same species living closely together	colony
an animal-like organism in the kingdom Protozoa	protozoan
a short, hair-like extension of a cell used either for movement or as a sensory organelle	cilium
a temporary extension of a cell membrane used by some protozoans to either move about or to engulf food particles	pseudopodium
a light-sensitive area of pigmentation found in some protozoans and invertebrates	eyespot
a dormant stage for some bacteria, protists, and a few invertebrates that allows and organism to survive within a protective coating during times of unfavorable environmental conditions	cyst
a type of reproductive cell protected by a hard covering	spore
a plant-like organism in the kingdom Chromista, such as an alga	chromist
a general term used for many autotrophic organisms, including members of the kingdom Chromista	alga
organisms that float in the water columns of oceans, seas, and large lakes and cannot swim against a current	plankton
a local surge in an algae population produced by very favorable environmental conditions	algal bloom
an organic substance, derived from glucose, found in the cell walls of fungi and the exoskeletons of invertebrates	chitin
a slender filament that is the primary structure of a fungal colony	hypha
a fungal structure made of interwoven hyphae	mycelium
a special fungal structure, composed of many hyphae, that is responsible for reproduction	fruiting body
the stalk of a club fungus's fruiting body supporting the cap	stipe
the top of a club fungus's fruiting body containing the gills and spores	cap
a rib located beneath the cap of some mushrooms used to disperse spores	gill
a type of asexual reproduction in which part of a cell is pinched off to form a new cell	budding
a type of asexual reproduction in which new organisms grow from pieces of an original	fragmentation
a symbiotic relationship formed between many fungi and plant roots in which the fungi increase the absorptive area of the roots and receive carbohydrates in return	mycorrhiza
a composite organism consisting of a fungus and algae in a symbiotic relationship	lichen

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