Answers to Exam #1

Question 1 of 26

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Organisms that are characterized by being unicellular, photosynthetic, and having double shells made of silica are known as:

Select one of the following:

  • Dinoflagellates

  • diatoms

  • Kelps

  • euglenoids

Question 2 of 26

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Which of the following is a common feature of diplomonads and parabasalids?

Select one of the following:

  • move using cilia

  • lack a mitochondria

  • have multiple mitochondria

  • contain a micronucleus

Question 3 of 26

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True or false: Spores are the most common means of reproduction

Select one of the following:

  • True

  • False

Question 4 of 26

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What is the function of the bacterial capsule and/or slime layer?

Select one of the following:

  • Protection

  • adherence

  • movement

  • all of the above

  • a and b

Question 5 of 26

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Which of the following are described as nonliving particles comprised of nucleic acid genomes enclosed in protein?

Select one of the following:

  • Bacteria

  • Molecules

  • Viruses

  • Protists

  • Archaea

Question 6 of 26

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Identify which of the following would not belong to the domain eukarya.

Select one of the following:

  • Photo synthetic plants

  • Multicellular fungi

  • Thermophilic archaea

  • multicellular animals

Question 7 of 26

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which of the following represents the correct hierarchical order, from largest to smallest.

Select one of the following:

  • species, genus, family, class, order

  • species, family, genus, class, order

  • class, genus, order, family, species

  • class, oder, family, genus, species

  • class, family, order, genus, species

Question 8 of 26

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which of the following represents the correct hierarchical order, from largest to smallest.

Select one of the following:

  • species, genus, family, class, order

  • species, family, genus, class, order

  • class, genus, order, family, species

  • class, oder, family, genus, species

  • class, family, order, genus, species

Question 9 of 26

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Tuberculosis affects the:

Select one of the following:

  • gastro-intestinal tract

  • circulatory system

  • respiratory tract

  • nervous system

Question 10 of 26

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True or false: Stomach ulcers are caused by the bacteria, Helicobacter pylori.

Select one of the following:

  • True

  • Fale

Question 11 of 26

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Gram-positive (+) and gram-negative (-) bacteria are characterized by differences in:

Select one of the following:

  • the cell wall: gram+ have peptidoglycan, gram-negative have pseudo-peptidoglycan.

  • the plasma membrane: gram+ have ester-liked lipid, gram-negative have either-linked lipds

  • the cell wall: gram+ have a thick layer of peptidoglycan and gram-negative have a thin layer of peptidoglycan plus and outer membrane.

  • chromosomal structure: gram+ have circular chromosomes, gram-negative have linear chromosomes.

Question 12 of 26

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Gram-positive (+) and gram-negative (-) bacteria are characterized by differences in:

Select one of the following:

  • the cell wall: gram+ have peptidoglycan, gram-negative have pseudo-peptidoglycan.

  • the plasma membrane: gram+ have ester-liked lipid, gram-negative have either-linked lipds

  • the cell wall: gram+ have a thick layer of peptidoglycan and gram-negative have a thin layer of peptidoglycan plus and outer membrane.

  • chromosomal structure: gram+ have circular chromosomes, gram-negative have linear chromosomes.

Question 13 of 26

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True or False: following rRNA sequence analysis, scientists found Domain Bacteria to be closely related to the Domain Eukarya.

Select one of the following:

  • True

  • False

Question 14 of 26

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Fungi obtain their food by:

Select one of the following:

  • ingestion

  • absorbing organic molecules that have been digested by secreted enzymes

  • undergoing photosynthesis

  • all of the above

Question 15 of 26

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Which of the following are included in the alveolar phylum:

Select one of the following:

  • Plasmodium (malaria)

  • Trypansosomes

  • ciliates

  • a and b

  • a and c

Question 16 of 26

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the main decomposers in the biosphere are ______ and _____.

Select one of the following:

  • fungi, animals

  • animals, bacteria

  • bacteria, plants

  • bacteria, fungi

Question 17 of 26

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Which on the following fungal groups reproduces using aquatic flagellated zoospores?

Select one of the following:

  • Glomeromycetes

  • Zygomycetes

  • Chtridiomycetes

  • Ascomycetes

Question 18 of 26

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The tropical diseases such as African sleeping sickness, Chaga's disease, and leishmaniasis are caused by:

Select one of the following:

  • apicomplexans

  • phytomastigotes

  • trypansomes

  • oomycetes

Question 19 of 26

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which of the following organelles present in eukaryotic cells may have resulted from an endosymbiotic relationship.

Select one of the following:

  • Chloroplasts

  • Rough Er

  • Ribosomes

  • Lysosomes

Question 20 of 26

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A process by which a bacteriophage may change a benign bacteria into a virulent strain:

Select one of the following:

  • induction

  • phage conversion

  • lysogeny

  • replication

Question 21 of 26

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the cells walls of most bacteria are composed of _____, which is not present in archaea.

Select one of the following:

  • polysaccharides

  • ester-linked lipids

  • capsid proteins

  • peptidoglycan

Question 22 of 26

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most viruses traget specific cells based on what is expressed on the surface of the host cell. As a result, viruses can only replicate in a limited number of host's cells. The phenomenon is commonly referred to as:

Select one of the following:

  • endosymbiosis

  • tissue tropism

  • selection typing

  • transformation

Question 23 of 26

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The devastating effete of AIDS results from the viral destruction of a specific type of lymphocyte known as ______ cells.

Select one of the following:

  • Helper T cells

  • Plasma

  • Red Blood

  • Cytotoxic B cells

Question 24 of 26

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Which of the following eukaryotic kingdoms contains a diverse group of unicellular and multicellular organisms that do not fit into any other eukaryotic kingdom?

Select one of the following:

  • Fungi

  • Protista

  • Animalia

  • Plantae

Question 25 of 26

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The marine multicellular protists including the larger brown algae belong to the:

Select one of the following:

  • dinoflagellates

  • choanofagellida

  • stramenopiles

  • euglenoids

Question 26 of 26

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specialized symbiotic associations between the roots of plants and fungi are called:

Select one of the following:

  • lichen

  • hyphai associations

  • mycorrhizae

  • mycelium

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Answers to Exam #1

apettit
Quiz by , created over 2 years ago

College Biology Quiz on Answers to Exam #1, created by apettit on 03/05/2014.

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