Chapter 18 – Kingdom Protista
35. The organisms whose chromosomes remain condensed and visible throughout the life of
the cells are
36. A gullet or groove through which food can be ingested is a feature of
Chapter 18 – Kingdom Protista
37. Which of the following is NOT a carbohydrate food reserve of algae?
38. Which of the following economically important products come(s) from diatoms?
Chapter 18 – Kingdom Protista
39. Fossil diatom cell walls form deposits of diatomaceous earth, which is mined for use in:
_________________.
40. Which of the following commercially important products comes from red algae?
Chapter 18 – Kingdom Protista
41. This substance which is extracted from brown algae, is used as a stabilizer for ice cream
and chocolate milk, and as an emulsifier in paints and cosmetics.
42. Historically algae has been used as food for people in coastal populations, but some
species of ________ are now being grown commercially for food use. Sushi wrappers may be
made from this algae.
Chapter 18 – Kingdom Protista
43. The fungal-like protists include which of the following organisms?
44. Two of the most ecologically and/or economically damaging plant diseases are caused by
the watermolds. These diseases are: ______________.
Chapter 18 – Kingdom Protista
45. When a slime mold spore germinates, the active cell that emerges is known as either a
myxamoeba or a ________________________.
46. Downy mildew of grapes and late blight of potato are two diseases caused by
_____________________.
Chapter 18 – Kingdom Protista
47. A slime mold with individual amoebalike cells that never are in true plasmodia belongs to
a small group known as ___________________.
48. Which of the following do sexually reproducing water molds and Oedogonium have in
common?
Chapter 18 – Kingdom Protista
49. The naked protoplast of a slime mold is the ____________________.
True / False Questions
50. If you found Ulothrix and Spirogyra in a stream and neither was reproducing, the only
way you could tell them apart would be from the shape of their chloroplasts.
51. Filamentous algae increase in length through cell division.
Chapter 18 – Kingdom Protista
52. Algin is used primarily by medical laboratories for culturing bacteria.
53. Red algae cause red tides.
54. Green algae have pigments similar to those of flowering plants.
Chapter 18 – Kingdom Protista
55. In Chlamydomonas, the cells involved in sexual reproduction are similar in appearance to
those involved in asexual reproduction.
56. The reproductive cells of Spirogyra have no flagella.
57. A structure in which eggs are produced in algae is called an antheridium.
58. Most phyla of algae have carbohydrate reserves that are unique to the phylum.
Chapter 18 – Kingdom Protista
59. Euglenoids may obtain their food either by photosynthesis or by feeding like animals.
60. Statospores are ornamented “resting” spores found in red algae.
61. The brownish pigment fucoxanthin is found in both diatoms and brown algae.
62. The brown algae include the largest known seaweeds.
Chapter 18 – Kingdom Protista
63. The gametangia of the common rockweed, Fucus, develop at the tips of the thallus
branches.
64. Except for vitamin C, Chlorella contains most of the vitamins needed in human nutrition,
giving it the potential for becoming an important protein source in many parts of the world.
65. Spirogyra was so-named because of the spiral shape of its chloroplasts.
Chapter 18 – Kingdom Protista
66. Euglena is a unicellular protist which has a gullet for ingesting food even though it has a
chloroplast for photosynthesis.
67. The green algae contain the smallest number of species of all the algal divisions.
69. A thallus is a multicellular flattened algal body that arises from two different planes of cell
division. A filament is also a multicellular algal body but it arises from one plane of cell
division that is perpendicular to the long axis of the filament.
Chapter 18 – Kingdom Protista
70. Brown algae are the principal source of agar.
71. The Kingdom Protista is considered to have the greatest diversity of all four kingdoms in
the domain Eukarya.
72. The plant kingdom is considered to be most closely related to the Chlorophyta, as
compared to the other algae phyla.