Test # 1 NAME____________________________________
General Biology II
February 3, 2006
Do not be anxious about anything, but in everything, with prayer and petition and with thanksgiving, present your requests to God. And the peace of God, which transcends all understanding with guard your hearts and minds in Christ Jesus. Phillipians 4: 6&7
1. Which of the following statements about
bacteria is false?
A. A
small percentage of bacteria are pathogenic
B. Some
bacteria can photosynthesize
*C. Bacteria are important decomposers.
*D. Bacteria are not cellular and are
sometimes not classified as life forms.
*E. Bacteria convert atmospheric nitrogen into ammonia and then nitrates that can be used by plants
2. Viruses that attack bacteria are
called:
A. bacteriophages.
*B. bacteriods
*C. prions.
*D. virons.
*E. viroids
3. Viroids cause
a variety of plant diseases and are composed only of:
A. strands
of RNA.
*B. strands of DNA.
*C. protein coats.
*D. peptidoglycan.
*E. a capsid
4. Mad cow disease is an example of an
infection caused by a:
*A. bacterium.
*B. bacteriophage.
*C. retrovirus.
*D. viroid.
E. prion
5. A chain of round bacteria would be
called:
A. spirilla.
*B. diplococci.
*C. bacilli.
D. streptococci.
*E. streptobacilli
6. Rod-shaped bacteria are called:
*A. streptococci.
B. bacilli.
*C. diplococci.
*D. vibrio.
*E. spirochete
7. What is the function of the structure
labeled I in the accompanying figure?
*A. to adhere to surfaces or other bacteria
*B. to prevent phagocytosis
C. support
and protection in hypotonic conditions
*D. transmission of DNA between bacteria
*E. locomotion
8. Gram-positive bacteria would stain
__________ in a gram stain because of a thick layer of ______________ in their
cell walls.
A. green;
peptidoglycan
B. purple;
peptidoglycan
*C. green; cellulose
*D. purple; polysaccharides
*E. red; polysaccharides
9. Bacteria:
*A. are incapable of locomotion.
*B. move by means of pili
*C. move by means of cilia.
D. move
by means of a rotating flagella.
*E. move by means of a whiplike flagella.
10. Small circles of DNA called
______________ exist in addition to the bacterial chromosome.
*A. capsids
B. plasmids
*C. chromatids
*D. pili
*E. centromeres
11. The most common mode of reproduction in
bacteria is:
A. binary
fission.
*B. transformation.
*C. transduction.
*D. conjugation.
*E. meiosis
12. Most prokaryotes belong to the:
*A. Fungi.
*B. Archaea.
*C. Protista.
D. Eubacteria.
*E. Viroids
13. Most protists
are:
A. aquatic.
*B. parasitic.
*C. terrestrial.
*D. arboreal.
*E. None of the above
14. Pseudopodia are used by Amoeba for ingesting food as well as
for:
*A. reproduction.
*B. excretion.
*C. digestion.
D. movement.
*
15. The function of the structure labeled 4
is:
A. food
intake.
*B. digestion.
*C. waste elimination.
*D. water discharge.
*E. asexual reproduction.
16. The function of the structure labeled 6
is:
*A. food intake.
*B. digestion.
C. waste
elimination.
*D. asexual reproduction.
17. Members of which phylum are one of the
most important producers in marine ecosystems, although sometimes they form
blooms known as red tides?
*A. Chlorophyta
*B. Rhodophyta
*C. Euglenophyta
D. Dinoflagellata
*E. Phaeophyta
18. Some green algae, such as Codium, attain
very large sizes, but are a single cell with multiple nuclei. This condition is known as:
*A. mycelium.
*B. alternation of generations.
*C. multicellular.
D. coenocytic.
*E. colonial
19. Symbiotic association in which one
partner benefits and the other is unaffected is called:
*A. symbiosis.
*B. mutualism.
C. commensalism.
*D. parasitism.
*E. None of the above
20. In paramecium, the surface of the cell is
covered with thousands of short, hairlike
___________.
*A. plasmadesmata
*B. pseudopods
*C. flagella
D. cilia
*E. trichomes
21. Water molds are members of the
kingdom___________________.
A. Protists
*B. Fungi
*C. Plantae
*D. Eubacteria
*E. Animalia
22. Which of the following attributes is not used to characterize animals?
*A. locomotion at some time during the life
cycle
*B. multicellular
eukaryotes
*C. heterotrophic
*D. sexual reproduction involving motile sperm
E. None of the above, all of the attributes are typical of animals
23. Which of the following group of animals
is sessile?
A. sponge
*B. jellyfish
*C. ctenophore
*D. planarian
*E. fluke
24. A true body cavity completely surrounded
by __________ is called a coelom.
*A. ectoderm
B. mesoderm
*C. endoderm
*D. exoderm
*E. mesoglea
25. The major phylum of animals that has an
asymmetrical body plan is:
*A. Cnidaria.
*B. Ctenophora.
*C. Echinodermata.
D. Porifera.
*E. All of the above
26. Ctenophores exhibit:
*A. bilateral symmetry.
*B. spherical symmetry.
*C. linear symmetry.
D. radial
symmetry.
*E. circular symmetry
27. The __________ gives rise to muscles,
bones, and the circulatory system.
*A. endoderm
*B. ectoderm
C. mesoderm
*D. blastopore
*E. mesoglea
28. The lining of the digestive tube is
formed from:
A. endoderm.
*B. ectoderm.
*C. germ cells.
*D. mesoderm.
*E. pseudoderm
29. Diploblastic animals,
such as cnidarians and ____________, have only two germ layers, ectoderm and
____________.
*A. sponges; ectoderm
*B. sponges; mesoderm
*C. ctenophores; mesoderm
D. ctenophores;
endoderm
*E. ctenophores; metaderm
30. The first opening which develops in deuterostomes develops into the:
*A. coelom.
*B. gut.
C. anus.
*D. mouth.
*E. nostril
31. In most deuterostomes,
the mesoderm forms by:
*A. duplication of the ectoderm.
*B. schizocoely.
*C. migration.
D. enterocoely.
*E. blastocoely
32. All of the following are protostomes except:
*A. Porifera.
*B. Mollusca.
*C. Annelida.
*D. Arthropoda.
33. Deuterostomes
are characterized by ____________ and ____________ cleavage.
*A. radial; determinate
B. radial;
indeterminate
*C. spiral; determinate
*D. spiral; indeterminate
*E. None of the above.
34. In cnidarians, nematocysts are housed in
specialized cells, the ___________, located primarily on the tentacles.
*A. choanocytes
*B. cnidocils
*C. pseudopodia
*D. nerve nets
E. cnidocytes
35. Comb jellies move by:
*A. floating in the water, since they are so
small.
*B. flagella.
*C. ameboid
movements in the water.
D. rows
of cilia.
*E. jet propulsion of water from the gastrovascular cavity.
36. The protostome coelomates are divided into 2 major groups, the:
*A. flatworms and roundworms.
B. Lophotrochozoa and Ecdysozoa.
*C. Mollusca and Arthropoda.
*D. invertebrates and vertebrates
*E. Chelicerata and Mandibulata
37. The type of osmoregulation
structures characteristic of platyhelminths are:
*A. protonemas.
B. protonephridia.
*C. nephridia.
*D. Malpighian
tubules.
*E. antennal organs.
38. The anterior end of a tapeworm is known
as the
*A. proglottid.
*B. cnidocyte.
*C. auricle.
*D. protonephridia.
E. scolex.
39. An animal found in the rocky intertidal zone has eight overlapping plates and is tightly
adhering to the rock with a muscular foot.
This animal is most likely a member of the class:
A. Polyplacophora.
*B. Polychaeta.
*C. Bivalvia.
*D. Gastropoda.
*E. Cephalopoda
40. Members of the class Bivalvia.
*A. have gills that secrete the shell.
B. have
a mantle that may form pearls.
*C. are all sessile.
*D. all have a radula.
*E. have a broad foot used for locomotion
41. Annelids:
*A. have a visceral mass.
B. have
a segmented body.
*C. surround their body with a mantle.
*D. move with a muscular foot.
*E. have an open circulatory system
42. Critical to polychaete
and oligochaete locomotion are:
*A. jointed appendages.
*B. parapodia.
C. setae.
*D. fins.
*E. tentacles
43. The larva in the accompanying figure is
___________ found in both mollusks and annelids:
*A. a veliger.
*B. a glochidium.
C. a
trochophore.
*D. a nauplius.
*E. a pupa.
44. Members of the class ________________
include blood-sucking parasites.
*A. Oligochaeta
*B. Polychaeta
*C. Polyplacophora
D. Hirudinea
*E. Cephalopoda
45. Animals with a crown of cilia that look
like a spinning wheel are the:
*A. bryozoans.
*B. phoronids.
*C. ctenophores.
D. rotifers.
*E. platyhelminths.
46. The phylum name Arthropoda
refers to:
*A. a hard exoskeleton.
*B. the ability to fly.
C. jointed
appendages.
*D. respiratory capabilities.
*E. a segmented coelom
47. One of the disadvantages of exoskeletons
in arthropods is that:
*A. they severely limit locomotion.
*B. they interfere with ingestion.
C. they
must be shed when the animal grows.
*D. they do not provide adequate protection
from predators.
*E. they do not prevent desiccation
48. Arthropods with mandibles, gills,
antennal glands, and statocysts are the:
*A. insects.
*B. spiders.
*C. scorpions.
D. crustaceans.
*E. mites
49. Arthropods with mandibles, a single pair of
antennae, and two legs on most body segments are:
*A. ribbon worms.
*B. centipedes.
C. millipedes.
*D. trilobites.
*E. mites.
50. The largest class of animals in terms of
the number of different species is the class:
*A. Arachnida.
B. Insecta.
*C. Gastropoda.
*D. Bivalvia.
*E. Arthropoda.
51. The organism in the associated figure is
a representative of:
*A. the phylum Hemichordata.
*B. the phylum Echinodermata.
C. the
phylum Chordata.
*D. the subphylum Urochordata.
*E. the subphylum Cephalochordata.
52. All Echinodermata
are found:
A. in
marine habitats.
*B. in freshwater.
*C. on land.
*D. in both land and water
53. Echinoderms are unique because:
*A. the larvae are radially
symmetrical and the adult is bilaterally symmetrical.
*B. the adults and larva are both pentaradially symmetrical.
*C. the adult and larva are both radially symmetrical.
*D. the adult and larva are both biradially symmetrical.
E. their larvae are bilaterally symmetrical
while the adult is pentaradially symmetrical.
54. Which of the following is not a characteristic shared by
all chordates at some point in their life cycle?
*A. possession of a coelom
*B. three primary cell layers
*C. dorsal tubular nerve cord
*D. pharyngeal gill slits
E. vertebrae
55. The superclass Tetrapods includes
*A. fish, amphibians, reptiles, and mammals.
*B. lancelets, cartilage, and bony fish.
*C. amphibians and reptiles.
D. amphibians,
reptiles, birds, and mammals.
*E. echinoderms and chordates.
56. Hagfishes are differentiated from
lampreys and all other fishes in that:
*A. hagfishes do not have gills.
*B. hagfishes lack a jaw.
*C. hagfishes are parasitic.
D. hagfishes
lack vertebrae.
*E. All of the above.
57. A fish with a cartilaginous skeleton and
paired fins would be:
*A. an Agnathan.
*B. a Cephalochordate.
*C. a Urochordate.
D. a Chondrichthyean
58. Sharks that are __________________
incubate their eggs in the uterus.
*A. oviparous
*B. viviparous