Download Unit 3 exam review answers

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Bio 211:
Unit 3 Exam Review
Supplemental Instruction
Iowa State University
Aubrie
Biology 211 (2)
Hofmockel
10/3/10
1. Imagine that you are a biologist who has discovered a previously unknown creature living in
the ocean. It seems to display protostome development, it has ciliated tufts, and it goes through
metamorphosis. How would you classify this animal?
a. ascomycete
b. lophotrochozoan
c. cnidarian
d. ecdysozoan
2. Which of the following is characteristic of the "body" of a fungus?
a. It is usually shaped in the form of a ring.
b. It contains gamete producing organs.
c. It is diploid.
d. It consists of a large number of thin filaments with a huge surface area.
e. It is usually a rather solid fleshy mass.
3. Which structure is derived from the ovary?
a. Seed
b. Heterospore
c. Megasporangium
d. Fruit
4. What plant group exhibits the evolutionary transition from motile sperm to nonmotile sperm?
a. Mosses
b. Ferns
c. Gymnosperms
d. Angiosperms
e. Monocots
5. Which of the following statements correctly distinguishes asexual from sexual fungal spores?
a. Sexual spores are haploid and asexual spores are diploid.
b. Sexual spores are the product of meiosis and are dikaryotic, and asexual spores are the
product of mitosis and are diploid.
c. Sexual spores are the product of meiosis and are haploid, and asexual spores are the
product of mitosis and are also haploid.
d. Sexual spores are diploid and asexual spores are haploid.
e. Sexual spores are the product of meiosis and are haploid, and asexual spores are the
product of mitosis and are dikaryotic.
6. Fungi are classified on the basis of
a. their source of food.
b. whether they form molds.
c. their sexual stage.
d. their commercial use.
e. the number of nuclei that are found in a dikaryon.
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7. In coelomates, the coelom arises from
a. the endoderm only
b. the ectoderm only
c. the mesoderm only
d. the endoderm and mesoderm
8. Which of the following plant phyla have species that are homosporous?
a. Pterophytes
b. Gymnosperms
c. Angiosperms
d. Bryophytes
e. B and C
f. A and D
9. Gymnosperms have more extant species diversity than do Angiosperms.
a. True
b. False
10. What are Mycorrhizae?
a. Symbiotic associations between fungi and plant roots.
b. Symbiotic associations between fungi and algae.
c. Parasitic protozoans.
d. Seaweed Protista.
e. Bryophytes
11. One trend that occurred during the evolution in the kingdom Plantae was:
a. Production of fruit then seeds
b. Reduced dependence on pollinators
c. Reduction in size of gametophyte stage
d. Reduction in size of sporophyte stage
e. Elimination of meiosis
12. Which flower part includes the flower ovary?
a. stigma
b. sepal
c. receptacle
d. anther
e. carpel
13. Double fertilization occurs
a. In pterophyte seed production
b. In gymnosperms when 1 of 2 sperm nuclei fertilizes the polar nuclei
c. In angiosperms when 1 of 2 sperm nuclei fertilizes the polar nuclei
d. In all homosporous plants
e. B and C
14. Pollination and fertilization are different terms, in that
a. Pollination occurs when the egg and sperm cells join
b. Fertilization occurs when pollen lands on a structure that contains ovules
c. All of the above
d. None of the above
15. Which of these statements is true about the gametophyte tissue that surrounds the pine
embryo?
a. It functions as a haploid food reserve.
b. It functions as a diploid food reserve.
c. It functions as a triploid food reserve.
d. It develops from the fusion of a microspore and a megaspore.
e. It is the remnant of the pollen tube.
16. In _____ cones, megasporangia produce megaspore mother cells that are _____, which
undergo _____ to produce haploid megaspores.
a. Ovulate, diploid, meiosis
b. Ovulate, haploid, mitosis
c. Pollen, dipoid, meiosis
d. Pollen, haploid, mitosis
17. The Hox gene is present in all
a. deuterostomes
b. fungi
c. plants
d. animals
18. Bilateral symmetry in the animal kingdom is best correlated with:
a. an ability to sense equally in all directions
b. cephalization
c. symbiotic relationships
d. ventral and dorsal differentiation
e. an ability to capture food from a sessile position
19. Protostomous animals are those in which the _____.
a. blastopore forms the mouth
b. ectoderm forms the muscles
c. digestive tract is incomplete
d. blastophore forms the anus
20. What is the order of early embryonic development?
a. zygote, blastula, gastrulation, gastrula, blastopore, cleavage
b. blastula,blastopore, gastrulation, gastrula, cleavage, zygote
c. zygote, cleavage, blastula, blastopore, gastrulation, gastrula
d. cleavage, zygote, gastrula, gastrualtion, blastula, blastopore