Question 1

Chrysophytes differ from diatoms in that chrysophytes:

Accepted Answer

A)  have two flagella of unequal length. 
B)  contain the pigment fucoxanthin. 
C)  have chrysolaminarin as the carbohydrate food reserve. 
D)  may be unicellular or colonial. 
E)  have cell walls of cellulose or lack cell walls. 
A)  have two flagella of unequal length. 
B)  contain the pigment fucoxanthin. 
C)  have chrysolaminarin as the carbohydrate food reserve. 
D)  may be unicellular or colonial. 
E)  have cell walls of cellulose or lack cell walls. E

Question 2

Phytophthora infestans is a myxomycetea responsible for the great potato famine of 1846−1849 in Ireland.

Accepted Answer

A) True 
 B)False  False

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

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

Accepted Answer

A) True 
 B)False

Question 5

A coccolith, found in haptophytes, is a(n):

Accepted Answer

A)  membrane of the chloroplast endoplasmic reticulum. 
B)  stonelike outgrowth of the plasma membrane. 
C)  endosymbiotic bacterial cell. 
D)  calcified scale on the cell surface. 
E)  calcium-containing Golgi vesicle. 
A)  membrane of the chloroplast endoplasmic reticulum. 
B)  stonelike outgrowth of the plasma membrane. 
C)  endosymbiotic bacterial cell. 
D)  calcified scale on the cell surface. 
E)  calcium-containing Golgi vesicle.

Question 6

In a coral reef, zooxanthellae:

Accepted Answer

A)  form a nonsymbiotic association with the coral polyps. 
B)  produce glycerol instead of starch. 
C)  grow only at ocean depths greater than 60 meters. 
D)  do not photosynthesize. 
E)  are located on the outer surface of the coral polyps. 
A)  form a nonsymbiotic association with the coral polyps. 
B)  produce glycerol instead of starch. 
C)  grow only at ocean depths greater than 60 meters. 
D)  do not photosynthesize. 
E)  are located on the outer surface of the coral polyps.

Question 7

The storage polysaccharide in euglenoids is:

Accepted Answer

A)  starch. 
B)  lipid. 
C)  glycogen. 
D)  paramylon. 
E)  pellicle. 
A)  starch. 
B)  lipid. 
C)  glycogen. 
D)  paramylon. 
E)  pellicle.

Question 8

Which of the following statements about dinoflagellates is FALSE?

Accepted Answer

A)  They have three or more flagella in grooves. 
B)  They have permanently condensed chromosomes. 
C)  Many have stiff cellulosic plates. 
D)  They are unicellular. 
E)  About half are photosynthetic. 
A)  They have three or more flagella in grooves. 
B)  They have permanently condensed chromosomes. 
C)  Many have stiff cellulosic plates. 
D)  They are unicellular. 
E)  About half are photosynthetic.

Question 9

Which of the following statements about Phytophthora ramorum is FALSE?

Accepted Answer

A)  It is an oomycete. 
B)  It is the cause of sudden oak syndrome. 
C)  It invades the bark of trees. 
D)  It kills the plant by girdling the trunk. 
E)  It infects oak trees but not other plants. 
A)  It is an oomycete. 
B)  It is the cause of sudden oak syndrome. 
C)  It invades the bark of trees. 
D)  It kills the plant by girdling the trunk. 
E)  It infects oak trees but not other plants.

Question 10

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 11

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 12

Which of the following statements about euglenoids is FALSE?

Accepted Answer

A)  All are flagellates. 
B)  Some are heterotrophic. 
C)  Some are autotrophic. 
D)  Most have a cell wall. 
E)  Most are unicellular. 
A)  All are flagellates. 
B)  Some are heterotrophic. 
C)  Some are autotrophic. 
D)  Most have a cell wall. 
E)  Most are unicellular.

Question 13

Dinoflagellates are unique in having two flagella that beat within grooves.

Accepted Answer

A) True 
 B)False

Question 14

The food reserve in brown algae is:

Accepted Answer

A)  floridean starch. 
B)  chrysolaminarin. 
C)  laminarin. 
D)  glycogen. 
E)  lipid. 
A)  floridean starch. 
B)  chrysolaminarin. 
C)  laminarin. 
D)  glycogen. 
E)  lipid.

Question 15

Members of the class Xanthophyceae:

Accepted Answer

A)  contain fucoxanthin. 
B)  store food reserves as oil. 
C)  are mostly motile. 
D)  lack chloroplasts. 
E)  have cell walls primarily of silica. 
A)  contain fucoxanthin. 
B)  store food reserves as oil. 
C)  are mostly motile. 
D)  lack chloroplasts. 
E)  have cell walls primarily of silica.

Question 16

______ 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 17

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

Accepted Answer

A) True 
 B)False

Question 18

The cell walls of diatoms are composed of:

Accepted Answer

A)  silica. 
B)  cellulose. 
C)  peptidoglycan. 
D)  chitin. 
E)  calcium carbonate. 
A)  silica. 
B)  cellulose. 
C)  peptidoglycan. 
D)  chitin. 
E)  calcium carbonate.

Question 19

In the euglenoids, Rubisco and other enzymes involved in photosynthesis are located in the:

Accepted Answer

A)  reservoir. 
B)  pellicle. 
C)  contractile vacuole. 
D)  paramylon. 
E)  pyrenoid. 
A)  reservoir. 
B)  pellicle. 
C)  contractile vacuole. 
D)  paramylon. 
E)  pyrenoid.

Question 20

Phytoplankton are:

Accepted Answer

A)  heterotrophic. 
B)  exemplified by crustaceans. 
C)  one type of zooplankton. 
D)  organisms that are heavy enough to sink. 
E)  photosynthetic. 
A)  heterotrophic. 
B)  exemplified by crustaceans. 
C)  one type of zooplankton. 
D)  organisms that are heavy enough to sink. 
E)  photosynthetic.

Exam 15: Protists: Algae and Heterotrophic Protists

Chrysophytes differ from diatoms in that chrysophytes:

Phytophthora infestans is a myxomycetea responsible for the great potato famine of 1846−1849 in Ireland.

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

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

A coccolith, found in haptophytes, is a(n):

In a coral reef, zooxanthellae:

The storage polysaccharide in euglenoids is:

Which of the following statements about dinoflagellates is FALSE?

Which of the following statements about Phytophthora ramorum is FALSE?

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

Pennate diatoms:

Which of the following statements about euglenoids is FALSE?

Dinoflagellates are unique in having two flagella that beat within grooves.

The food reserve in brown algae is:

Members of the class Xanthophyceae:

______ is a genus of homothallic water molds.

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

The cell walls of diatoms are composed of:

In the euglenoids, Rubisco and other enzymes involved in photosynthesis are located in the:

Phytoplankton are:

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

Filters