Stern Intro Plant Biology Chapter 18

Question 1 Marine forms of green algae are an important part of the free-floating planktonic food chains. A. True B. False

Question 2 The one feature that all members of the Kingdom Protista have in common is that they are all unicellular. A. True B. False

Question 3 Diatoms and yellow-green algae are representatives of the Division Cryptophyta. A. True B. False

Question 4 Conceptacles are the coenocytic multicellular mycelia found in Chytrids. A. True B. False

Question 5 Red tide is caused by the sudden multiplication of dinoflagellates. A. True B. False

Question 6 Algin is used as a stabilizer and thickening agent used in commercial products. A. True B. False

Question 7 Water molds produce pseudoplasmodia that crawl like a slug. A. True B. False

Question 8 Which of the following algae is considered the indirect ancestor of today's land plants? A. Polysiphonia B. Ulothrix C. Coleochaete D. Dinoflagellates

Question 9 Which division of algae has the same pigments and reserve food as those of higher plants? A. Chlorophyta B. Rhodophyta C. Phaeophyta D. Chromophyta

Question 10 What is the name given to the type of sexual reproduction in which genetic information is passed through a tube formed between two algal filaments? A. transduction B. conjugation C. transcription D. fission

Question 11 Which of the following groups of organisms is characterized by the pigment, fucoxanthin, and bodies composed of a holdfast, stipe, and blade? A. Phaeophyceae B. Charophyta C. Chlorophyta D. Mastigobionta

Question 12 Which of the following divisions of organisms produce carposporangia and tetrasporangia? A. Myxobionta B. Oomycota C. Rhodophyta D. Dinophyta

Question 13 Another name for the Charophyta is A. slime molds. B. stoneworts. C. Chytrids. D. water molds.

Question 14 What is the name of the fan-shaped body of the slime mold? A. epiphyte B. papilla C. oogonium D. plasmodium

Question 15 Downy mildew of grape is caused by A. water molds. B. slime molds. C. green algae. D. chytrids.

1. A2. B3. B4. B5. A6. A7. B8. C 9. A10. B11. A12. C13. B14. D15. A