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28 Cards in this Set
- Front
- Back
How are downy mildews and water molds similar to fungi?
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downy mildews and water molds similar to fungi because
THEY BOTH RESEMBLE FUNGI, DECOMPOSE ORGANIC MATERIALS, ABSORB NUTRIENTS. |
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Why is downy mildews important?
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Downy mildews are important because they may cause serious PLANT DISEASES.
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What plantlike protists causes red tides?
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plantlike protists causes red tides are DINOFLGELLATES
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What plantlike protest with delicate shells that make a large proportion of the phtoplankton in freshwater called?
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plantlike protest with delicate shells that make a large proportion of the phtoplankton in freshwater are DIATOMS
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What are the traits of members of the Kingdom Protesta?
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1. MEMBRANE-BOUND ORGANELLES
2. A WIDE VARIETY OF SIZE AND SHAPES 3. ONE OR MANY CELLS. |
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What is the protooan that moves by lashing one or more of its whiplike parts called?
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the protooan that moves by lashing one or more of its whiplike parts is an FLAGELLATE
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Which protest group produces much of the oxygen of Earth?
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ALGAE IS the protooan that moves by lashing one or more of its whiplike parts
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When does green alga have the gametophyte generation?
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During the gametophe generation a green alga HAS THE HAPLOID NUMBER OF CHROMOSOMES
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How does amoeba engulfs food?
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An amoeba engulfs food by SURROUNDING THE FOOD WITH PSEUDOPODIA.
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How are many protozoans classified?
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Many protozoans are classifed according to THE WAY THAT THEY MOVE.
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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 |
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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 |
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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 |
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What is alternation of generation?
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alternation of generation- life cycle of organisms that have a haploid stage followed by a diploid stage.
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What is sporphyte?
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Sporophyte is the diploid form of an alga that develops from a zygote and produces spores
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What is a colony?
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a colony is a group of cells that live together in close association
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What is gametophyte?
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Gametophyte is a haploid from of an alga that produces gametes
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What fragmentation?
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Fragmentation is a kind of reproducation that occurs when an individual breaks up into pieces, each of which grows into new individual.
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What is algae?
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Algae is multicellular and unicellular photosynthetic protists.
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What is spore?
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A spore is a reproductive cell that can produce a new organism without fertilization.
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What is ciliate?
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Ciliate is a protozoan that moves by beating
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What is a protozoan?
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Protozoan is an animal like protists.
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Describe the difference between protozoan and algae?
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Protozoan and algae are both protists. protooans are animal-like and have only a single cell. Algae always have choloroplast and celluslose cell walls.
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Imagine that you collect an organism from a lake? What characterists of the organism would identify it as a protists?
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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.
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What adaptation helps red algae to live in deep water?
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Red alga contains red and blue pigments called phycolbilins that are involved in photosynthese.
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How is almost every living things directly or indirectly dependent on algae?
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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.
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Euglenoids have characteristics of both autotrophs and heterotroph.
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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.
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Why is the relationshp between a termite and flagellates that live in its intestin said to be mutualistic?
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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.
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