BSC-1005 Lecture Notes - Lecture 5: Red Algae, Protist, Fern Ally

25 views2 pages

salmonyak575

15 Sep 2016

School

FSU

Department

Biological Science

Course

BSC-1005

Professor

G.Bates, G.Erickson, S.Lenhert, C.Schultz, H.Tang, C.Schultz

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

The algae and evolution of land plants. The first organisms capable of photosynthesis were bacteria. The kingdom protista contains simple unicellular and multicellular organisms, most of which are aquatic and many of which are photosynthetic. Plankton are tiny organisms that live suspended in the water, and phytoplankton are plankton that can photosynthesize. Two main groups of phytoplankton: diatoms and dinoflagellates. These organisms are the base of the food chain in the open ocean. They phytoplankton are eaten by tiny planktonic organisms, which are eaten by shrimp, and then small fish, and so on. Photosynthesis by the diatoms and dinoflagellates is estimated to produce 30% of the oxygen in the earth"s atmosphere. Diatoms have a unique cell wall that contains large amounts of silica. Dinoflagellates are also abundant in the oceans and sometimes experience massive population booms called red tides. these organisms produce deadly neurotoxins, and red tides can result in massive fish kills, and also toxic to people.

Related Questions

1. You observe that small crustaceans swimming through a sample of ocean water set off light production, but your first guess is that this is due to some bacterium, since bacteria are so metabolically diverse. True or false

2. How did multicellular organisms evolve from unicellular organisms?

Single-celled organisms joined together, or failed to separate after cell division.

Single-celled organisms joined together only.

Single-celled organisms failed to separate after cell division only.

Single-celled organisms joined together, or absorbed other species by endosymbiosis.

One species absorbed another species by endosymbiosis only.

3.Cooperation between or among cells could have been a key step in the evolution of multicellularity.

True

False

4. Autotrophs must acquire carbon from organic molecules produced from other organisms.

True

False

5. The protists, though now known to have multiple origins, were first group due to their being aquatic, and, most of them, quite small.

True

False

6. You are analyzing samples under a microscope, and one sample coming from what you suspect is a fungus. You find tiny filaments, which, in your report, you call

hyphae.

spores.

fruiting bodies.

7. Fungi are classified into phyla based on which characteristic?

organelles

composition of cell wall

photosynthesis

reproductive structures

multicellular vs. unicellular

gills.

chitin.

You are studying two populations of dung beetles, one of which rolls their dung balls at noon, resting at night, and the other of which reverses this. These could speciate due to

behavioral isolation.

gametic isolation.

mechanical isolation.

temporal isolation.

sexual selection.

TAKING EXAM NOW, need fast please!

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

BSC-1005 Lecture Notes - Lecture 5: Red Algae, Protist, Fern Ally

Document Summary

Get access

Related Documents

BSC-1005 Lecture Notes - Lecture 5: Red Tide, Protist, Nori

BSC-1005 Study Guide - Midterm Guide: Plant Propagation, Filter Feeder, Marine Protected Area

BSC-1005 Lecture Notes - Lecture 12: Tetraodontidae, Sea Anemone, Scuba Diving

Related Questions