Question 1

Which of the following statements about Chlamydomonas is FALSE?

Accepted Answer

A)  The diploid phase is the dominant phase in its life cycle. 
B)  It has two flagella of equal length. 
C)  It undergoes zygotic meiosis. 
D)  It has no cellulose in its cell wall. 
E)  Its chloroplast contains a pyrenoid. 
A)  The diploid phase is the dominant phase in its life cycle. 
B)  It has two flagella of equal length. 
C)  It undergoes zygotic meiosis. 
D)  It has no cellulose in its cell wall. 
E)  Its chloroplast contains a pyrenoid.

Question 2

The oldest fossil eukaryotic algae are unlike any alga living today.

Accepted Answer

A) True 
 B)False

Question 3

The life history of most red algae consists of the following phases:

Accepted Answer

A)  gametophyte and carposporophyte. 
B)  gametophyte and tetrasporophyte. 
C)  carposporophyte and tetrasporophyte. 
D)  gametophyte, carposporophyte, and tetrasporophyte. 
E)  gametophyte, sporophyte, carposporophyte, and tetrasporophyte. 
A)  gametophyte and carposporophyte. 
B)  gametophyte and tetrasporophyte. 
C)  carposporophyte and tetrasporophyte. 
D)  gametophyte, carposporophyte, and tetrasporophyte. 
E)  gametophyte, sporophyte, carposporophyte, and tetrasporophyte.

Question 4

Cryptomonads arose through the fusion of a heterotrophic and a photosynthetic eukaryotic cell.

Accepted Answer

A) True 
 B)False

Question 5

In the Ectocarpus life cycle, the sporophyte produces plurilocular and unilocular sporangia.

Accepted Answer

A) True 
 B)False

Question 6

Both phytoplankton and zooplankton are organisms that normally live suspended in water.

Accepted Answer

A) True 
 B)False

Question 7

In Euglenoids, a flexible structure called the pyrenoid allows the cell to change shape.

Accepted Answer

A) True 
 B)False

Question 8

Cytokinesis in the Chlorophyceae involves a unique structure called a:

Accepted Answer

A)  phragmoplast. 
B)  cleavage furrow. 
C)  flagellar root. 
D)  phycosome. 
E)  phycoplast. 
A)  phragmoplast. 
B)  cleavage furrow. 
C)  flagellar root. 
D)  phycosome. 
E)  phycoplast.

Question 9

Which of the following statements about protists is FALSE?

Accepted Answer

A)  Some of the oldest fossil eukaryotes resembled protists. 
B)  They live mainly on land. 
C)  They exhibit zygotic, sporic, and gametic life cycles. 
D)  They include the slime molds. 
E)  Fungi, plants, and animals are derived from ancient protists. 
A)  Some of the oldest fossil eukaryotes resembled protists. 
B)  They live mainly on land. 
C)  They exhibit zygotic, sporic, and gametic life cycles. 
D)  They include the slime molds. 
E)  Fungi, plants, and animals are derived from ancient protists.

Question 10

Which of the following statements about Volvox is FALSE?

Accepted Answer

A)  It consists of a hollow sphere of cells. 
B)  Vegetative cells are nonflagellated. 
C)  Reproductive cells divide by mitosis to form juvenile spheroids. 
D)  Sexual reproduction is oogamous. 
E)  Male colonies may produce inducer molecules. 
A)  It consists of a hollow sphere of cells. 
B)  Vegetative cells are nonflagellated. 
C)  Reproductive cells divide by mitosis to form juvenile spheroids. 
D)  Sexual reproduction is oogamous. 
E)  Male colonies may produce inducer molecules.

Question 11

Kelps produce algin, which is used to emulsify foods.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following features is NOT shared by Chara and certain plants?

Accepted Answer

A)  apical growth 
B)  tissue organization in the nodal regions 
C)  flagellated cells other than sperm 
D)  pattern of plasmodesmatal connections 
E)  sporopollenin 
A)  apical growth 
B)  tissue organization in the nodal regions 
C)  flagellated cells other than sperm 
D)  pattern of plasmodesmatal connections 
E)  sporopollenin

Question 13

Members of the class Xanthophyceae store their food reserves as glycogen.

Accepted Answer

A) True 
 B)False

Question 14

Rockweeds and kelps belong to which class?

Accepted Answer

A)  Bacillariophyceae 
B)  Chlorophyceae 
C)  Phaeophyceae 
D)  Chrysophyceae 
E)  Xanthophyceae 
A)  Bacillariophyceae 
B)  Chlorophyceae 
C)  Phaeophyceae 
D)  Chrysophyceae 
E)  Xanthophyceae

Question 15

Which of the following structures is NOT associated with sexual reproduction in Spirogyra?

Accepted Answer

A)  isogametes 
B)  conjugation tube 
C)  flagellated reproductive cells 
D)  sporopollenin 
E)  zygotic meiosis 
A)  isogametes 
B)  conjugation tube 
C)  flagellated reproductive cells 
D)  sporopollenin 
E)  zygotic meiosis

Question 16

All members of Class Chrysophyceae have cell walls of cellulose.

Accepted Answer

A) True 
 B)False

Question 17

Dinobryon is a representative member of Class Chrysophyceae.

Accepted Answer

A) True 
 B)False

Question 18

Three defining characteristics of the brown algae are:

Accepted Answer

A)  plurilocular sporangia, fucoxanthin, and laminarin. 
B)  plurilocular sporangia, unilocular sporangia, and fucoxanthin. 
C)  unilocular sporangia, algin, and plasmodesmata. 
D)  unilocular sporangia, mannitol, and plasmodesmata. 
E)  mannitol, fucoxanthin, and laminarin. 
A)  plurilocular sporangia, fucoxanthin, and laminarin. 
B)  plurilocular sporangia, unilocular sporangia, and fucoxanthin. 
C)  unilocular sporangia, algin, and plasmodesmata. 
D)  unilocular sporangia, mannitol, and plasmodesmata. 
E)  mannitol, fucoxanthin, and laminarin.

Question 19

In the myxomycete life cycle, the protoplast of spores forms amoeboid or flagellated cells that are interconvertible.

Accepted Answer

A) True 
 B)False

Question 20

Diatoms belong to the class:

Accepted Answer

A)  Chrysophyceae. 
B)  Bacillariophyceae. 
C)  Chlorophyceae. 
D)  Phaeophyceae. 
E)  Xanthophyceae. 
A)  Chrysophyceae. 
B)  Bacillariophyceae. 
C)  Chlorophyceae. 
D)  Phaeophyceae. 
E)  Xanthophyceae.

Exam 15: Protists: Algae and Heterotrophic Protists

Which of the following statements about Chlamydomonas is FALSE?

The oldest fossil eukaryotic algae are unlike any alga living today.

The life history of most red algae consists of the following phases:

Cryptomonads arose through the fusion of a heterotrophic and a photosynthetic eukaryotic cell.

In the Ectocarpus life cycle, the sporophyte produces plurilocular and unilocular sporangia.

Both phytoplankton and zooplankton are organisms that normally live suspended in water.

In Euglenoids, a flexible structure called the pyrenoid allows the cell to change shape.

Cytokinesis in the Chlorophyceae involves a unique structure called a:

Which of the following statements about protists is FALSE?

Which of the following statements about Volvox is FALSE?

Kelps produce algin, which is used to emulsify foods.

Which of the following features is NOT shared by Chara and certain plants?

Members of the class Xanthophyceae store their food reserves as glycogen.

Rockweeds and kelps belong to which class?

Which of the following structures is NOT associated with sexual reproduction in Spirogyra?

All members of Class Chrysophyceae have cell walls of cellulose.

Dinobryon is a representative member of Class Chrysophyceae.

Three defining characteristics of the brown algae are:

In the myxomycete life cycle, the protoplast of spores forms amoeboid or flagellated cells that are interconvertible.

Diatoms belong to the class:

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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