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. A

Question 2

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

Accepted Answer

A) True 
 B)False  True

Question 3

Dictyostelium is used in the study of apoptosis, which is the:

Accepted Answer

A) aggregation of amoebas. 
B) programmed cell death. 
C) formation of resistant encysted structures. 
D) morphological differentiation of a plasmodium. 
E) loss of motility of amoebas. 
A) aggregation of amoebas. 
B) programmed cell death. 
C) formation of resistant encysted structures. 
D) morphological differentiation of a plasmodium. 
E) loss of motility of amoebas. B

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

Pennate diatoms:

Accepted Answer

A) lack frustrules. 
B) have non-overlapping frustules. 
C) have cell walls of peptidoglycan. 
D) are radially symmetric. 
E) are bilaterally symmetric. 
A) lack frustrules. 
B) have non-overlapping frustules. 
C) have cell walls of peptidoglycan. 
D) are radially symmetric. 
E) are bilaterally symmetric.

Question 6

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 7

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 8

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

Accepted Answer

A) True 
 B)False

Question 9

The stoneworts are green algae that produce flagellated sperm in complex multicellular antheridia.

Accepted Answer

A) True 
 B)False

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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 12

In the life cycle of the myxomycetes, meiosis occurs within:

Accepted Answer

A) the plasmodiocarps. 
B) amoebas. 
C) spores. 
D) sclerotia. 
E) aethalia. 
A) the plasmodiocarps. 
B) amoebas. 
C) spores. 
D) sclerotia. 
E) aethalia.

Question 13

All pennate diatoms seem to possess a groove, called a raphe, in their frustules.

Accepted Answer

A) True 
 B)False

Question 14

______ is a genus of homothallic water molds.

Accepted Answer

A) Saprolegnia 
B) Achlya 
C) Plasmopara 
D) Pythium 
E) Phytophthora 
A) Saprolegnia 
B) Achlya 
C) Plasmopara 
D) Pythium 
E) Phytophthora

Question 15

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 16

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 17

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

Accepted Answer

A) True 
 B)False

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

Vaucheria belongs to the class:

Accepted Answer

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

Question 20

______ is a parenchymatous member of the Chlorophyceae.

Accepted Answer

A) Volvox 
B) Cladophora 
C) Ulva 
D) Fritschiella 
E) Acetabularia 
A) Volvox 
B) Cladophora 
C) Ulva 
D) Fritschiella 
E) Acetabularia

Exam 15: Protists: Algae and Heterotrophic Protists

Which of the following statements about Chlamydomonas is FALSE?

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

Dictyostelium is used in the study of apoptosis, which is the:

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

Pennate diatoms:

The chloroplast endoplasmic reticulum is:

Cytokinesis in the Chlorophyceae involves a unique structure called a:

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

The stoneworts are green algae that produce flagellated sperm in complex multicellular antheridia.

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

Siphonous marine algae are characterized by:

In the life cycle of the myxomycetes, meiosis occurs within:

All pennate diatoms seem to possess a groove, called a raphe, in their frustules.

______ is a genus of homothallic water molds.

Which of the following statements about Volvox is FALSE?

In Polysiphonia, meiosis occurs inside a(n):

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

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

Vaucheria belongs to the class:

______ is a parenchymatous member of the Chlorophyceae.

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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