Biology 2201 Test: Unit II – Classification and Plants

Name: ______

PART A: Multiple Choice

1.  A scientist has a small sample of DNA from a fish that she believes is cod and has been illegally caught. How would she analyse the DNA sample?

a.  run the DNA sample using gel electrophoresis

b.  amplify the DNA using polymerase chain reaction

c.  compare the DNA sequence to the sequence of the codfish

d.  all of the above

e.  none of the above

2.  The wolf has the scientific name Canis lupis. What is the classification category of “Canis”?

a.  family

b.  class

c.  genus

d.  species

3.  This biologist is considered to be the father of taxonomy.

a.  Aristotle

b.  Linneaus

c.  Darwin

d.  Crick

4.  This is the evolutionary history of a species.

a.  phylogeny

b.  cytology

c.  taxonomy

d.  all of the above

Questions 5-6 are based on the following table

House Cat Dog Human Grasshopper

Animalia Animalia Animalia Animalia

Chordata Chordata Chordata Arthropoda

Mammalia Mammalia Mammalia Insecta

Carvivora Carnivora Primates Orthoptera

Felicidae Canidae Hominidae Locustidae

Felis Canis Homo Schistocerca

Domesticus familiaris sapiens americana

5.  Based on the above table, which two organisms have the most common features?

a.  house cat and human

b.  grasshopper and dog

c.  human and dog

d.  house cat and dog

6.  In the above table, what is the furthest level of taxonomy shared by any two organisms?

a.  kingdom

b.  phylum

c.  class

d.  order

7.  Biologists discover a new organism. Upon viewing the organism, they discover it is

unicellular, with a nucleus and a cell wall. To which kingdom does this new creature

belong?

(a) animalia (c) plantae

(b) monera (d) protista

8.  E. coli is a bacteria and belongs to the kingdom Monera. What can be inferred about E. coli based on this classification?

a.  E. coli is not harmful to humans

b.  E. coli has membrane bound organelles

c.  E. coli has a nucleus

d.  E. coli has no nucleus

9.  Which of the following is a difference between bacteria and archaea?

a. Archaea are unicellular, and bacteria are colonial.

b. They have different chemicals in their cell membranes and cell walls.

c. Bacteria are autotrophic, and archaea are heterotrophic.

d. They look very different under a microscope.

10.  Which of the following is NOT an example of a protist?

a.  dinoflagellate

b.  euglena

c.  halophile

d.  diatom

11. Bacteria that live around deep-sea, hot-water vents obtain energy by

oxidizing inorganic hydrogen sulfide belched out by the vents. They use this

energy to build organic molecules from carbon obtained from the carbon dioxide

in the seawater. These bacteria might be described as

a. photoheterotrophs.

b. chemoautotrophs.

c. photoautotrophs.

d. chemoheterotrophs.

12.  Which pair of plants are restricted to wet environments for sexual reproduction?

a.  angiosperms and gymnosperms

b.  ferns and gymnosperms

c.  ferns and mosses

d.  mosses and angiosperms

13.  A botanist discovers a new species of plant in the tropical rain forest. After observing its anatomy and life cycle, the following characteristics are noted: xylem and phloem, separate gametophyte and sporophyte generations, and no seeds. To what classification is this plant most closely related?

a.  conifers

b.  ferns

c.  flowering plants

d.  mosses

14.  Which category would the bean plant fall?

a.  angiosperm

b.  bryophyte

c.  conifer

d.  gymnosperm

15.  What is the evolutionary sequence of plants from the most simple to the most complex?

a.  angiosperms, ferns, gymnosperms, mosses

b.  ferns, mosses, angiosperms, gymnosperms

c.  gymnosperms, angiosperms, mosses and ferns

d.  mosses, ferns, gymnosperms, angiosperms

16.  What evolutionary trend is associated with higher plants?

a.  sperm in reproduction usually swims in water to the egg.

b.  Spores are the most common method of reproduction

c.  The gametophyte generation is dominant

d.  There is a decrease in the dependency on water for reproduction

17.  Which of the following transports water ands minerals up the stem of the plant to the leaves?

a.  rhizoids

b.  xylem

c.  phloem

d.  bryophytes

18.  This is a seed leaf and is important in nourishment for the embryo and germination.

a.  monocot

b.  cotyledon

c.  dicot

d.  spores

19.  Which plant listed below could be classified as a bryophyte?

a.  lichen

b.  moss

c.  fern

d.  club moss

20.  Members of the genus Selanginella are vascular plants that reproduce by the way of spores in the dominant generation. To what group would these be classified?

a.  bryophytes

b.  angiosperms

c.  algae

d.  fern and fern allies

21.  Which of the following would not be used as characteristics to identify different plant groups?

a.  presence of vascular tissue

b.  reproduction by seeds

c.  reproduction by spores

d.  presence of chlorophyll

22. The seed of a gymnosperm lacks which of the following?

a. seed coat b. embryo c. fruit d. food supply

23. In the life cycle of a gymnosperm, which is the correct series of events:

a. fertilization, pollination, young sporophyte, seeds released from cone

b. pollination, fertilization, seeds released from cone, young sporophyte

c. seeds released from cone, fertilization, young sporophyte, pollination

d. seeds released from cone, pollination, young sporophyte, fertilization

24. The cells from the sporophyte generation are:

a. monoploid spores b. diploid spores

c. triploid spores d. polyploid spores

25. Which is true of conifers but not of ferns?

A. They have vascular tissue.

B. The embryo is protected by a seed.

C. They carry on photosynthesis.

D. The leaves have a waxy layer of cutin.

ANSWER SHEET

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PART B: Short Answer Questions (25 marks total)

1.  Scientists now use a wide variety of information to classify organisms. Outline any four (4) of these types of information by a using a description and providing an example to illustrate. You may use a table (8 marks)

2.  Some people believe that it is possible that the Beothuck Indians may have amalgamated into the European population that settled in Newfoundland. How would you prove or disprove this claim? (2 marks)

3.  Scientists recently moved from using a five kingdom system of classification to a six kingdom system of classification. What recent advancements allowed scientists to discover more about classification to make this change? (2 marks)

4.  Why it is important to classify organisms. (1 mark)

5.  Explain why seeds can be referred to as “plants in storage” while spores can not. (2 marks)

6.  Compare/contrast the adaptations for life on land between bryophytes and tracheophytes. (6 marks)

7.  Give four (4) reasons to explain why angiosperms are the most dominant and diverse plant form on earth. (4 marks)