Question 1

A haptonema is a flat scale on the outer surface of a haptophyte cell.

Accepted Answer

A) True 
 B)False

Question 2

In the life cycle of Dictyostelium discoideum, myxamoebas aggregate to form a:

Accepted Answer

A)  spore. 
B)  sclerotium. 
C)  sporangium. 
D)  plasmodium. 
E)  pseudoplasmodium. 
A)  spore. 
B)  sclerotium. 
C)  sporangium. 
D)  plasmodium. 
E)  pseudoplasmodium.

Question 3

In Polysiphonia, meiosis occurs inside a(n):

Accepted Answer

A)  auxillary cell. 
B)  tetrasporangium. 
C)  spermatium. 
D)  trichogyne. 
E)  carpospore. 
A)  auxillary cell. 
B)  tetrasporangium. 
C)  spermatium. 
D)  trichogyne. 
E)  carpospore.

Question 4

Which of the following statements concerning the stramenopiles is FALSE?

Accepted Answer

A)  They are also known as heterokonts. 
B)  They have hairs on one of their flagella. 
C)  They are related to certain heterotrophic protists. 
D)  Their name means "straw hairs." 
E)  Their longer flagellum is ornamented with distinctive hairs. 
A)  They are also known as heterokonts. 
B)  They have hairs on one of their flagella. 
C)  They are related to certain heterotrophic protists. 
D)  Their name means "straw hairs." 
E)  Their longer flagellum is ornamented with distinctive hairs.

Question 5

Siphonous marine algae are characterized by:

Accepted Answer

A)  short, unbranched filaments. 
B)  large, branched coenocytic cells. 
C)  a parenchymatous structure. 
D)  "caps" or annual scars. 
E)  large motile colonies. 
A)  short, unbranched filaments. 
B)  large, branched coenocytic cells. 
C)  a parenchymatous structure. 
D)  "caps" or annual scars. 
E)  large motile colonies.

Question 6

Desmids are members of the Ulvophyceae with cells consisting of two sections joined by an isthmus.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following statements about cryptomonads is FALSE?

Accepted Answer

A)  They are flagellates. 
B)  They are unicellular. 
C)  They live primarily in warm, surface waters. 
D)  They are rich in polyunsaturated fatty acids. 
E)  They include autotrophs and heterotrophs. 
A)  They are flagellates. 
B)  They are unicellular. 
C)  They live primarily in warm, surface waters. 
D)  They are rich in polyunsaturated fatty acids. 
E)  They include autotrophs and heterotrophs.

Question 8

In Volvox, spheroids turn inside out before they become motile.

Accepted Answer

A) True 
 B)False

Question 9

______ is a member of the class Charophyceae that has an unbranched filamentous growth form.

Accepted Answer

A)  Halimeda 
B)  Ulva 
C)  Chara 
D)  Oedogonium 
E)  Spirogyra 
A)  Halimeda 
B)  Ulva 
C)  Chara 
D)  Oedogonium 
E)  Spirogyra

Question 10

The chloroplast endoplasmic reticulum is:

Accepted Answer

A)  the innermost chloroplast membrane. 
B)  the space that contains a nucleomorph. 
C)  the outermost chloroplast membrane. 
D)  the space between the second and third chloroplast membranes. 
E)  the space that contains starch grains. 
A)  the innermost chloroplast membrane. 
B)  the space that contains a nucleomorph. 
C)  the outermost chloroplast membrane. 
D)  the space between the second and third chloroplast membranes. 
E)  the space that contains starch grains.

Question 11

Cell wall constituents of the red algae are used commercially to produce agar and carrageenans.

Accepted Answer

A) True 
 B)False

Question 12

Centric diatoms are radially symmetrical.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following statements about oomycetes is FALSE?

Accepted Answer

A)  They have cell walls of cellulose or cellulose-like polymers. 
B)  Asexually reproduction occurs by uniflagellate zoospores. 
C)  Their filaments resemble hyphae. 
D)  Sexual reproduction is oogamous. 
E)  Some are unicellular. 
A)  They have cell walls of cellulose or cellulose-like polymers. 
B)  Asexually reproduction occurs by uniflagellate zoospores. 
C)  Their filaments resemble hyphae. 
D)  Sexual reproduction is oogamous. 
E)  Some are unicellular.

Question 14

One role of the flagellar root system is to:

Accepted Answer

A)  produce the flagellum. 
B)  stimulate flagellar movement. 
C)  anchor the flagellum. 
D)  digest the flagellum during cell division. 
E)  produce the phragmoplast. 
A)  produce the flagellum. 
B)  stimulate flagellar movement. 
C)  anchor the flagellum. 
D)  digest the flagellum during cell division. 
E)  produce the phragmoplast.

Question 15

The cryptomonad chloroplast is surrounded by four membranes.

Accepted Answer

A) True 
 B)False

Question 16

In the life cycle of plasmodial slime molds, when gametes fuse they give rise to a:

Accepted Answer

A)  microcyst. 
B)  sporangium. 
C)  spore. 
D)  plasmodium. 
E)  sclerotium. 
A)  microcyst. 
B)  sporangium. 
C)  spore. 
D)  plasmodium. 
E)  sclerotium.

Question 17

______ is a motile, colonial member of the Chlorophyceae.

Accepted Answer

A)  Hydrodictyon 
B)  Halimeda 
C)  Volvox 
D)  Oedogonium 
E)  Chlorella 
A)  Hydrodictyon 
B)  Halimeda 
C)  Volvox 
D)  Oedogonium 
E)  Chlorella

Question 18

The thalli of brown algae may consist of tissue-like pseudoparenchyma.

Accepted Answer

A) True 
 B)False

Question 19

In the Dictyostelium life cycle, myxamoebas aggregate by migrating along a gradient of:

Accepted Answer

A)  cAMP. 
B)  glucose. 
C)  protein. 
D)  paramylon. 
E)  microtubules. 
A)  cAMP. 
B)  glucose. 
C)  protein. 
D)  paramylon. 
E)  microtubules.

Question 20

Algae can be cultivated for biofuel production.

Accepted Answer

A) True 
 B)False

Exam 15: Protists: Algae and Heterotrophic Protists

A haptonema is a flat scale on the outer surface of a haptophyte cell.

In the life cycle of Dictyostelium discoideum, myxamoebas aggregate to form a:

In Polysiphonia, meiosis occurs inside a(n):

Which of the following statements concerning the stramenopiles is FALSE?

Siphonous marine algae are characterized by:

Desmids are members of the Ulvophyceae with cells consisting of two sections joined by an isthmus.

Which of the following statements about cryptomonads is FALSE?

In Volvox, spheroids turn inside out before they become motile.

______ is a member of the class Charophyceae that has an unbranched filamentous growth form.

The chloroplast endoplasmic reticulum is:

Cell wall constituents of the red algae are used commercially to produce agar and carrageenans.

Centric diatoms are radially symmetrical.

Which of the following statements about oomycetes is FALSE?

One role of the flagellar root system is to:

The cryptomonad chloroplast is surrounded by four membranes.

In the life cycle of plasmodial slime molds, when gametes fuse they give rise to a:

______ is a motile, colonial member of the Chlorophyceae.

The thalli of brown algae may consist of tissue-like pseudoparenchyma.

In the Dictyostelium life cycle, myxamoebas aggregate by migrating along a gradient of:

Algae can be cultivated for biofuel production.

Botany: an Introduction

The Molecular Composition of Plant Cells

The Plant Cell and the Cell Cycle

The Movement of Substances Into and Out of Cells

The Flow of Energy

Respiration

Photosynthesis, Light, and Life

Sexual Reproduction and Heredity

The Chemistry of Heredity and Gene Expression

Recombinant Dna Technology, Plant Biotechnology, and Genomics

The Process of Evolution

Systematics: the Science of Biological Diversity

Prokaryotes and Viruses

Fungi

Bryophytes

Seedless Vascular Plants

Gymnosperms

Introduction to the Angiosperms

Evolution of the Angiosperms

Plants and People

Early Development of the Plant Body

Cells and Tissues of the Plant Body

The Root: Structure and Development

The Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

Plant Nutrition and Soils

The Movement of Water and Solutes in Plants

The Dynamics of Communities and Ecosystems

Global Ecology

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