BIOL 2030 Study Guide - Final Guide: Gastrovascular Cavity, Shear Zone, Bivalvia

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byzantiumdinosaur204

17 Apr 2012

School

York University

Department

Biology

Course

BIOL 2030

Professor

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Document Summary

Protista kindgdom is paraphyletic (a group of taxa is said to be paraphyletic if the group contains its last common ancestor but does not contain all the descendants of that ancestor) Protists are heterotrophic and motile all life process is within the single cell. Water regulation is through contractile vacuole reproduction is though binary fission classified through locomotion (cilia, flagella, amoeboid) Class euglenoidea: some are found to have a light-sensitive stigma or eyespot which allows light only from one direction to strike a light sensitive receptor. Euglena is a plant-like flagellate and may contain chloroplast. Spindle-shaped body that moves by means of a single anteriorly projected flagellum and a second very short flagellum also has a function in locomotion. Worm like and expansion of the body is known as euglenoid movement . Stigma: found at the base of the flagellum, it"s a photoreceptive pigment or eyespot.

Related Questions

Question 1 Which characteristic(s) of mitochondria andchloroplasts supports their existence as independent prokaryoticcells that were engulfed by eukaryotic cells?

Question 1 options: their size presence of their own DNA theirself-replication by binary fission all of these characteristicssupport that mitochondria and chloroplasts were independentprokaryotic cells that were engulfed by eukaryotic cells

Question 2 Mitochondria originated from __________, which wereengulfed during __________ endosymbiosis. Chloroplasts originatedfrom __________, which were engulfed during __________endosymbiosis.

Question 2 options: aerobic bacterium; primary; cyanobacteria;primary anaerobic bacterium; primary; cyanobacteria; secondarycyanobacteria; primary; aerobic bacterium; secondary cyanobacteria;primary; aerobic bacterium; primary

Question 3 Saved Secondary endosymbiosis refers to the processby which

Question 3 options: prokaryotes acquired chloroplasts.prokaryotes acquired mitochondria. eukaryotic cells engulfedcyanobacteria. eukaryotic cells with mitochondria engulfed aphotosynthetic.

Question 4 Saved Though there are exceptions, __________ is acommon reproductive strategy among protists.

Question 4 options: sexual reproduction by mitosis asexualreproduction by mitosis binary fission asexual reproduction bymeiosis

Question 5 Protists with chloroplasts are __________ that maketheir own food. Protists that lack chloroplasts ___________ and arethus heterotrophic; this group is generally known as__________.

Question 5 options: parasites; ingest food; protozoansheterotrophs; photosynthesize; plankton photosynthetic autotrophs;ingest or absorb food; protozoans green algae; are parasites;plankton

Question 6 An endosymbiotic protist that does not cause diseaseis likely

Question 6 options: plankton. a protozoan. a parasiticheterotroph. a photosynthetic autotroph.

Question 7 The euglenoids are

Question 7 options: euglenoids can be all of these things.photosynthetic organisms with chloroplasts. heterotrophic organismswithout chloroplasts. flagellated freshwater unicellularorganisms.

Question 8 African sleeping sickness and Chagas disease arecaused by

Question 8 options: amoeboids found in zooplankton. euglenoidswith chloroplasts. photosynthetic protists. parasiticflagellates.

Question 9 Amoeboids feed by

Question 9 options: photosynthesis, by which they make their ownfood in their chloroplasts. phagocytosis, which occurs aspseudopods surround and engulf prey. decomposing dead organisms.absorbing nutrients from their surroundings.

Question 10 Foraminiferans and radiolarians

Question 10 options: share a clade with the amoeboids. areamoeboids with shells called tests. have pseudopods, but are notamoeboids. do not have pseudopods, though they do have shells,called tests.

Question 11 A ciliate might have __________, which dischargestructures that are useful in defense or prey capture.

Question 11 options: anal pores trypanosomes contractilevacuoles trichocysts

Question 12 Ciliates reproduce __________ and have __________ tocontrol metabolism and reproduction.

Question 12 options: both sexually and asexually; two types ofnuclei sexually; a single nucleus asexually; two types of nuclei bybinary fission; a nucleoid

Question 13 The nonmotile apicomplexan Plasmodium vivaxcauses

Question 13 options: Chagas disease. vaginitis. African sleepingsickness. malaria.

Question 14 Which phase of Plasmodium vivaxâs life cycle takesplace in the human liver? In the mosquito carrier?

Question 14 options: the sexual phase; the asexual phase theasexual phase; the sexual phase

Question 15 __________ molds are found in forests, fields, andin soil. They exist in two forms, individual amoeboid __________and diploid multinucleated __________.

Question 15 options: Slime; sporangium; flagellated cells Water;sporangium; flagellated cells Slime; cellular slime molds;plasmodial slime molds Water; cellular water molds; plasmodialwater molds

Question 16 __________ are among the most numerous of allunicellular algae in the oceans and produce a major portion of theearths oxygen supply.

Question 16 options: Red algae Sporozoa DinoflagellatesDiatoms

Question 17 The phenomenon known as red tide is caused by

Question 17 options: population explosions in dinoflagellates.population explosions in red algae. built up remains of diatoms.bacterial invasion of the phytoplankton.

Question 18 The seaweed observed on the shoreline in the northtemperate zone, sometimes called kelp, is

Question 18 options: green algae. blue-green algae. red algae.brown algae.

Question 19 Ice cream, sherbet, and cream cheese are made fromalginate, a pectinlike material produced by __________ algae. Anemulsifying agent used in cosmetics and chocolate, as well as thewrappings for sushi rolls are made from extracts or parts of__________ algae.

Question 19 options: brown; green brown; red red; green green;brown

Question 20 Saved Green algae are believed to be closely relatedto the first plants, and are classified as plants by someauthorities, because both groups

Question 20 options: have a cell wall containing cellulose.possess chlorophylls a and b. All of these choices accuratelycomplete this statement. store reserve food in the form ofstarch.

emeraldpanda238

Match the following groups of organisms with the statements that best describe them. Use the letter that represents the group. Some groups are used more than once or not at all.

a. Stramenopila

b. Proteobacteria

c. Unikonta

d. Cyanobacteria

e. Spirochetes

f. Diplomonads

g. Achaeplastida

h. Chlamydias

i. Euglenozoa

j. Alveolata

k. Actinomycetes

l. Green Algae

m. Foraminifera

n. Radiolaria

o. Archaebacteria

p. Gram-positive Bacteria

______A. Possess subsurface, membrane bound cavities.

______B. Algae lacks flagellated stage, found in warm waters.

______C. Possess two haploid nuclei, lack mitochondria.

______D. Bacteria that are obligate intracellular parasites.

______E. Clade includes ciliated, flagellated, and non-motile organisms.

______F. Flagellates that can be either photosynthetic or heterotrophic/mixotrophic

______G. Prokaryotes with internalized flagella.

______H. Organisms with heterokont (two types) flagella.

______I. Move with slender pseudopodia, test of CaCO₃

______J. Probable ancestors of plants.

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