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Exam 1 Version 2 - Introductory Botany | BOT 1010, Exams of Botany and Agronomy

Florida International University (FIU)Botany and Agronomy

Material Type: Exam; Class: Introductory Botany; Subject: Botany; University: Florida International University; Term: Spring 2007;

Typology: Exams

Pre 2010

Uploaded on 03/10/2009

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BOT 1010
Spring, 2007 Your name: ____________________________
Hour Exam I—Version 2
INSTRUCTIONS: For each of the following questions, bubble in the letter on the answer
sheet that corresponds to the best answer to the question. Be careful that the number of the
question matches the number where you put your answer on the answer sheet.
6. The most economically important among the following plants.
A. Lycopodium
b. Selaginella
c. Horsetail
d. Hornwort
e. Sphagnum moss
7. If a plant had 8 chromosomes as a sporophyte, how many chromosomes would it have as
a gametophyte?
A. 4 B. 8 C. 16
D. 32 E. 64 F. none of the above
8. In eukaryotic cells the organelle that is the “powerhouse”, producing energy in a form that
is used throughout the cell is the
A. nucleus B. Golgi apparatus
C. ribosome D. mitochondrion
E. cytoskeleton
Use the letter adjacent to the word below to indicate the answer that best matches the
phrases in the following questions. Answers may be used more than once or not at all.
A. ribose B. thymine C. uracil D. phosphate
E. guanine F. glucose G. adenine H. cytocine
I. de-oxyribose J. ATP
1. the nucleotide base that pairs with adenine in DNA
2. the molecule that with a sugar forms part of the DNA backbone
3. The nucleotide base that is present in RNA but not in DNA
4. the sugar found in RNA
5. the molecule that provides energy for chemical reactions in cells
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BOT 1010

Spring, 2007 Your name: ____________________________

Hour Exam I—Version 2

INSTRUCTIONS: For each of the following questions, bubble in the letter on the answer sheet that corresponds to the best answer to the question. Be careful that the number of the question matches the number where you put your answer on the answer sheet.

  1. The most economically important among the following plants. A. Lycopodium b. Selaginella c. Horsetail d. Hornwort e. Sphagnum moss
  2. If a plant had 8 chromosomes as a sporophyte, how many chromosomes would it have as a gametophyte? A. 4 B. 8 C. 16 D. 32 E. 64 F. none of the above
  3. In eukaryotic cells the organelle that is the “powerhouse”, producing energy in a form that is used throughout the cell is the A. nucleus B. Golgi apparatus C. ribosome D. mitochondrion E. cytoskeleton

Use the letter adjacent to the word below to indicate the answer that best matches the phrases in the following questions. Answers may be used more than once or not at all.

A. ribose B. thymine C. uracil D. phosphate E. guanine F. glucose G. adenine H. cytocine I. de-oxyribose J. ATP

  1. the nucleotide base that pairs with adenine in DNA
  2. the molecule that with a sugar forms part of the DNA backbone
  3. The nucleotide base that is present in RNA but not in DNA
  4. the sugar found in RNA
  5. the molecule that provides energy for chemical reactions in cells
  1. Which of the following was not an essential part of Darwin’s Theory of Natural Selection? A. heritable variation among traits in a population B. overproduction of offspring C. reproductive isolation D. individuals with more advantageous traits produce more offspring F. competition for limited resources
  2. One of the following is not a characteristic of life A. possesses metabolism (enzymes) B. capable of growth and reproduction (DNA) C. consists of the structural unit, the cell D. chemistry is based on silicon E. capable of evolution
  3. The domain of life that has organisms with prokaryotic cells living in extreme environments is the A. Eukarya B. Bacteria C. Archaea
  4. When genes assort independently, they are not A. linked B. mapped C. meiotic D. homozygous E. segregated
  5. Evolution is A. oxygen evolution B. adaptation C. natural selection D. random E. a change in gene frequenc ies
  6. Purple flower color is dominant to white flower color in peas. You self a pea plant that has purple flowers, it produces many peas, and you plant them to look at flower color in the progeny. If you find that you have purple- flowered and white flowered plants in the progeny and that they occur in a 1:1 ratio, your original plant was probably A. homozygous recessive B. heterozygous C. homozygous dominant D. F1 E. F
  7. Plants are green because the pigment chlorophyll A. absorbs red and blue light B. reflects red and blue light C. absorbs green light D. absorbs red light E. reflects blue light
  8. Which of the following is necessary in order to get speciation? A. evolution of more advantageous traits B. volcanic activity C. competition for limited resources D. reproductive isolation E. natural selection
  1. The two molecules of DNA are held together in a helix by hydrogen bonding of the A. ribose B. de-oxyribose C. phosphates D. nucleotide bases E. electrons
  2. Do plants have respiration? A. yes B. no
  3. A random change in allele frequencies in a population is called A. genetic drift B. natural selection C. crossing-over D. anaphase of meiosis I E. gene splicing
  4. The cell walls of fungi are made of A. cellulose B. complex carbohydrates C. algin D. chitin E. silica F. none of the above
  5. Green pod color is dominant to yellow pod color in peas. Pod color in peas thus has two different A. chromatids B. recessives C. genes D. homozygotes E. heterozygotes F. alleles
  6. Which of the following does NOT provide evidence for evolution? A. crossing-over B. direct observation of evolution C. biogeography of species D. fossil record F. molecular similarities among organisms
  7. Which one of these is NOT a difference between plant and animal cells? A. central vacuole B. chloroplast C. plasmodesmata D. wall E. ribosome
  8. The clusters of sporangia on the undersurface of the resurrection fern are A. antheridia B. archegonia C. sori D. spores E. gemmae

Answer the following 3 questions about times in the history of life from the answers below A. 14 billion years B. 4.6 billion years C. 3.5 billion years D. 1.5 billion years ago E. 400 million years ago

  1. ____ The time when plants appeared on land.
  2. ____ The time cosmologists estimate for the origin of the universe.
  3. ____ The time when living organisms appeared on the planet.
  1. Present in a eukaryotic cell, but never in a prokaryotic cell A. Chloroplast B. Plasma membrane C. DNA D. Ribosome E. Wall
  2. The tissue responsible for conduction of water in vascular plants is the A. xylem B. phloem C. cambium D. epidermis E. elator

Use the letter adjacent to the word below to indicate the answer that best matches the descriptions in the following questions. Answers may be used more than once or not at all.

A. anaphase B. metaphase C. prophase D. G1 E. telophase F. S G. G2 H. interphase I. meiosis J. mitosis

  1. the stage of mitosis where the chromosomes condense and the nuclear envelope breaks down
  2. the stage of meiosis I in which crossing-over occurs
  3. the stage of mitosis where the chromosomes line up on the cell plate
  4. the stage of the cell cycle that is most metabolically active
  5. the stage of meiosis II when the chromatids are separated
  6. the type of division in which a diploid organism produces haploid cells.
  7. the type of division that causes a zygote to develop into a multicellular organism
  8. the stage of the cell cycle where the DNA duplicates

Use the letter adjacent to the word below to indicate the group of organisms that best matches the descriptions in the following questions. Answers may be used more than once or not at all.

A. bacteria B. green algae C. diatoms D. mosses E. blue- green algae F. lichens G. red algae H. ferns I. fungi J. brown algae

  1. heterotrophic prokaryotes
  2. the ancestors of the plants
  3. multicellular algae that are common in shallow tropical water and have phycobilins
  4. plants that lack vascular tissue
  5. agar is produced from these organisms
  6. these organisms make hyphae
  7. algae that have chlorophylls a and b
  8. plants in which the gametophyte is the dominant phase of the life cycle
  9. yeast belong to this group of organisms
  10. these organisms have silica cell walls
  11. these organisms can have an N+N (dikaryotic) phase of their life cycle
  12. these organisms are a symbiotic association of a blue-green alga with a fungus
  13. heterotrophic eukaryotes some of which produce mushrooms
  14. plants that have complex leaves that form crosiers or fiddleheads in development
  15. large multicellular algae that are common in temperate oceans and have fucoxanthin
  16. autotrophic prokaryotes