Biology 1108, Exam 2 / BIOL1108 Exam 2
Biology 1108, Exam 2
1. In Figure 1, the modified leaf labeled X is a(n) _____ bearing at its base a(n) _____
containing 3 _____
a. megasporophyll | megasporangium j megaspores
b. megasporangium | archegonium | eggs
c. microsporophyll | microsporangium ...
the modified leaf labeled x is an bearing at its base an containing 3
a feature common to all green plants except gree
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Biology 1108, Exam 2
1. In Figure 1, the modified leaf labeled X is a(n) _____ bearing at its base a(n) _____
containing 3 _____
a. megasporophyll | megasporangium j megaspores
b. megasporangium | archegonium | eggs
c. microsporophyll | microsporangium | microspores
d. strobilus | sporophyte | gametes
e. microsporangium | antheridium | sperm
2. A feature common to all green plants except green algae and bryophytes is ______
a. xylem tracheids
b. pollen
c. chlorophyll b
d. embryo nurtured by parent plant
e. seeds
3. What is one way that the sporophyte of a moss, hornwort or liverwort differs from the
sporophytes of
vascular plants?
a. it produces spores by meiosis
b. it is unicellular
c. it is multicellular
d. it is dikaryotic
e. it is unbranched and bears a single sporangium
4. An archegonium is a structure that ______
a. produces an egg
b. contains cells that later undergo meiosis
c. is found on both gametophytes and sporophytes
d. produces sperm
e. produces spores
5. Which of the following stages of a plant life cycle is a single haploid cell?
a. spore
b. seed
c. zygote
d. pollen
e. gametophyte
This study source was downloaded by 100000840858457 from CourseHero.com on 02-24-2022 14:29:33 GMT -06:00
, 6. Which group of green plants contains some of the tallest, oldest and most massive
individual organisms on earth?
a. conifers
b. bryophytes
c. angiosperms
d. fungi
e. ferns
7. If a microsporangium from a male pine cone currently contains 100 microspores, how
many pollen
grains will eventually leave the microsporangium?
a. 50
b. 400
c. 25
d. 100
e. 200
8. If a pollen grain arrives in Spring 2012 at the micropyle of a female pine ovule, when will
the seed resulting from the fertilization of an egg in that particular ovule by the sperm from
that particular pollen grain be dispersed?
a. Spring 2013
b. Fall 2013
c. Spring 2014
d. Fall 2014
e. Spring 2015
9. The species Ginkgo biloba and one other group of gymnosperms known as ______ provide
a possible original function for pollen tubes that differs from their ______ role in most seed
plants, which is to carry sperm directly to the egg. In these two groups of gymnosperms, the
sperm are and the pollen tube is ______
a. cycads | haustorial | agellated
b. conifers | multicellular | necrotic
c. gnetophytes | endosperm | projectile
d. lycophytes | agellated | haustorial
e. cycads | agellated | haustorial
10. The seed of a gymnosperm combines tissues from three generations: the seed coat is
tissue, the embryo is tissue and the food storage tissue in between is tissue.
a. gametophyte | gametophyte | sporophyte
b. gametophyte | sporophyte | sporophyte
c. sporophyte | gametophyte | sporophyte
d. sporophyte | sporophyte | gametophyte
e. gametophyte | sporophyte | gametophyte
11. Angiosperms have several features that make them more reproductively efficient than
gymnosperms.
By “more efficient" I mean they spend less energy getting pollen transferred or producing
seeds. One example is ______ which results in the production of _____ only if fertilization
occurred.
a. single-fertilization | gymnosperm
b. wind pollination | pollen
c. double-fertilization | endosperm
d. meiosis | spores
e. chitin | dikaryotic hyphae
This study source was downloaded by 100000840858457 from CourseHero.com on 02-24-2022 14:29:33 GMT -06:00
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