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28 Cards in this Set

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How are downy mildews and water molds similar to fungi?
downy mildews and water molds similar to fungi because
THEY BOTH RESEMBLE FUNGI, DECOMPOSE ORGANIC MATERIALS, ABSORB NUTRIENTS.
Why is downy mildews important?
Downy mildews are important because they may cause serious PLANT DISEASES.
What plantlike protists causes red tides?
plantlike protists causes red tides are DINOFLGELLATES
What plantlike protest with delicate shells that make a large proportion of the phtoplankton in freshwater called?
plantlike protest with delicate shells that make a large proportion of the phtoplankton in freshwater are DIATOMS
What are the traits of members of the Kingdom Protesta?
1. MEMBRANE-BOUND ORGANELLES
2. A WIDE VARIETY OF SIZE AND SHAPES
3. ONE OR MANY CELLS.
What is the protooan that moves by lashing one or more of its whiplike parts called?
the protooan that moves by lashing one or more of its whiplike parts is an FLAGELLATE
Which protest group produces much of the oxygen of Earth?
ALGAE IS the protooan that moves by lashing one or more of its whiplike parts
When does green alga have the gametophyte generation?
During the gametophe generation a green alga HAS THE HAPLOID NUMBER OF CHROMOSOMES
How does amoeba engulfs food?
An amoeba engulfs food by SURROUNDING THE FOOD WITH PSEUDOPODIA.
How are many protozoans classified?
Many protozoans are classifed according to THE WAY THAT THEY MOVE.
Which structure shown in this figure is used for locomotion? Used to eat?to extract waste?




figure 19-2
Locomotion -A
Used to eat - B
to extract waste - C
Which of the protists shown in Figure 19-3 would use a psudopod? Has the hardest exterior?












Figure 19-3
use a psudopod B
Has the hardest exterior-A
Which phrase shown in Figure 19-4 is diploid? When does meiosis occur in Figure 19-4?































figure 19-4
Diploid - from the zygote to the sporophyte

Meiosis - when spores form
What is alternation of generation?
alternation of generation- life cycle of organisms that have a haploid stage followed by a diploid stage.
What is sporphyte?
Sporophyte is the diploid form of an alga that develops from a zygote and produces spores
What is a colony?
a colony is a group of cells that live together in close association
What is gametophyte?
Gametophyte is a haploid from of an alga that produces gametes
What fragmentation?
Fragmentation is a kind of reproducation that occurs when an individual breaks up into pieces, each of which grows into new individual.
What is algae?
Algae is multicellular and unicellular photosynthetic protists.
What is spore?
A spore is a reproductive cell that can produce a new organism without fertilization.
What is ciliate?
Ciliate is a protozoan that moves by beating
What is a protozoan?
Protozoan is an animal like protists.
Describe the difference between protozoan and algae?
Protozoan and algae are both protists. protooans are animal-like and have only a single cell. Algae always have choloroplast and celluslose cell walls.
Imagine that you collect an organism from a lake? What characterists of the organism would identify it as a protists?
Protists can be unicellular, muticelluar or colonial. If the organism is unicellular and does not have a cell wall, it must be PROTOZAN. If the organism is EUKARYOTIC resembles a fungus and reproduces at some time in its life cycle with flagellate reproductive cells, it must a funguslike protist. If the organism is plantlike and has cholorophas but no specialized tissues, it must be ALGAE.
What adaptation helps red algae to live in deep water?
Red alga contains red and blue pigments called phycolbilins that are involved in photosynthese.
How is almost every living things directly or indirectly dependent on algae?
Algae produces more than HALF of the oxygen genterated by the Earth's photosynthesizing organism and it forms the foundation of Earth's aquatic food chains.
Euglenoids have characteristics of both autotrophs and heterotroph.
Most euglenoids have cholorophyll and carry out photsynthesis; however, when light is not available, they can ingest food from the surrounding water, as a hetertoph would do.
Why is the relationshp between a termite and flagellates that live in its intestin said to be mutualistic?
The termite feed on wood, but cannot diges the cellulose. The flagellate in the termite's intestine coverts cellulose to a carbohydrate both the termite and the flagellate can use. the flagellates are provided with food and protection.