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mark1532 mark1532
wrote...
13 years ago
__1. Which of the following is NOT true concerning plants?
a. There are at least 295,000 kinds of existing plants.
b. Plants affect the composition of the atmosphere.
c. Almost 750 plant species in the United States alone are now on the endangered list.
d. The colonization of the land by plants made it possible for animals to live and evolve on land.
e. Plants resupply atmospheric oxygen by splitting CO2 during photosynthesis.

__2. All of the following are characteristics of Monocots. Select the Exception:
a. leaf venation is web netted c. produces one cotyledons b. the vascular tissue is irregular d. flowers have 3 sets of petals

__2. All of the following are characteristics of Gymnosperms. Select the exception:
a. produce cones c. some have needle like leaves b. produce pollen d. have ovaries and ovules in the cone

__4. Which of the following is TRUE of xylem?
a. conducts water up the plant c. connects with phloem b. conducts nutrients up the plant d. connects with soil

__5. Which of the following is TRUE of phloem?
a. conducts water up the plant
b. conducts mineral ions up the plant e. transports plant-manufactured organic products
c. have nothing to do with roots
d. have noting to do with leaves

__6. The cuticle of a plant is primarily for
a. retention of water.          c. absorption of carbon dioxide.
b. conduction of water.       d. protection from strong sunlight.

__7. Which of the following is(are) specialization(s) that evolved in land plants that was(were) unnecessary in their aquatic ancestors?
a. xylem    b. stomata    c. roots    d. all of the above

__8. Which of the following is NOT true of gametophytes?
a. They are haploid plants.       d. They are a stage in the life cycle of plants.
b. They produce gametes.       e. Their gametes are either male or female.
c. They are the result of sexual reproduction.



__9. Which of the following is TRUE of sporophytes?
a. They are haploid plants.
b. They produce gametes.      
c. They are the result of sexual reproduction.
d. They are a minor stage in the life cycle of all plants.
e. all of these

__10. Which of the following are NOT seed-bearing plants?
a. cycads    b. ferns    c. ginkgos    d. gnetophytes

__11. Gymnosperms
a. are heterosporous.       c. produce megaspores.
b. produce microspores.    d. produce male and female gametophytes.

__12. The key innovation that helped seed-bearing plants radiate to high, dry environments is
a. pollen.    b. the cuticle.    c. xylem.    d. phloem.    e. lignin.

__13. Which of the following is NOT true of seedless vascular plants?
a. Sporophytes are independent of gametophytes.    c. Sporophytes have vascular tissue.
b. Water is not needed for gamete transport.       d. They cannot exist in dry habitats.

____14. In horsetails, lycophytes, and whisk ferns,
a. spores give rise to gametophytes.
b. the main plant body is a gametophyte.
c. the sporophyte bears sperm- and egg-producing organs.
d. the gametophyte is the dominant stage in the life cycle.
e. all of these

__15. The various forms of algae, even though they do photosynthesis and have similar characteristics as plants; however are NOT considered plants because they
a. are not multicellular.
b. lack strengthened cell walls.
c. never have specialized tissues.
d. lack modifications that protect the gametes and zygote from drying out.
e. All of the above are differences that separate the algae from plants.

__16. Gymnosperm microspores mature directly into
a. ovules.    b. seeds.    c. pollen grains.    d. cones.    e. sperm cells.

17. Gymnosperm megaspores are produced
a. within ovules.       c. by pollen grains.    e. by the union of egg and sperm cells.
b. within seeds.       d. by the gametophyte.

__18. Which of the following plants is NOT a Gymnosperm?
a. cycad    b. spruce    c. palm    d. ginkgo    e. gnetophyte

__19. A pine tree is
a. an angiosperm.       c. a sporophyte.
b. a gametophyte.       d. the dependent stage in the conifer life cycle.

__20. The first group with flowers are the
a. algae.    b. fern allies.    c. ferns.    d. angiosperms.    e. gymnosperms.

__21. Angiosperms are more advanced than gymnosperms because gymnosperms lack which structure found in angiosperms?
a. independent sporophyte    b. flowers    c. seeds    d. pollen grains e. spores

__22. The rapid expansion of angiosperms late in the Mesozoic era appears to be related to their coevolution with
a. dinosaurs.    b. gymnosperms.    c. insects.    d. mammals.    e. birds.

__23. All of the following are characteristics of Angiosperms,EXCEPT:
a. are the most successful of all plants.
b. are the most diverse of all plants.
c. do not produce pollen
d. have embryos that are provided with food by an endosperm, a unique structure found only within the angiosperms.
e. produce flowers

__24. The life cycle of flowering plants includes all of the following EXCEPT:
a. formation of pollen.       c. formation of cones e. fertilization.
b. formation of eggs.          d. formation of seeds.

__25. Double fertilization produces a triploid tissue. This tissue is known as:
a. sperm tissue    b. the embryo       c. endosperms       d. fruit

__26. The Liverworts belong to the group known as:
a. Sphenophyta    b. Bryophyta       c. Lycophyta   d. Psilotophyta    e. Gymnosperms

__27. The Horstails belong to the group known as:
a. Sphenophyta    b. Bryophyta       c. Lycophyta     d. Psilotophyta   e. Gymnosperms

__28. The Club Moss include both the:
a. Whisk fern/ferns    b. horstails/ground pine   c. hornworms/liverworts    d. pines/ginkgos

__29. In the life cycle of the fern, the the__ is dominant, while in the life cycle of the moss, the ______ is kdominant.
a. gametophyte/sporophyte       c. sporophyte/sporophyte   
b. sporophyte/gametophyte        d. gametophyte/gametophyte

__30. In the ___ the sporophyte is completely dependent on the gametopyte.
a. hornworts    b. liverworts    c. moss    d. all of these       e. none of these
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wrote...
Valued Member
Educator
13 years ago
__1. Which of the following is NOT true concerning plants?
a. There are at least 295,000 kinds of existing plants.
b. Plants affect the composition of the atmosphere.
c. Almost 750 plant species in the United States alone are now on the endangered list.
d. The colonization of the land by plants made it possible for animals to live and evolve on land.
e. Plants resupply atmospheric oxygen by splitting CO2 during photosynthesis.

__2. All of the following are characteristics of Monocots. Select the Exception:
a. leaf venation is web netted
c. produces one cotyledons
b. the vascular tissue is irregular
d. flowers have 3 sets of petals

__2. All of the following are characteristics of Gymnosperms. Select the exception:
a. produce cones
c. some have needle like leaves
b. produce pollen
d. have ovaries and ovules in the cone

__4. Which of the following is TRUE of xylem?
a. conducts water up the plant c. connects with phloem b. conducts nutrients up the plant d. connects with soil

__5. Which of the following is TRUE of phloem?
a. conducts water up the plant
b. conducts mineral ions up the plant e. transports plant-manufactured organic products
c. have nothing to do with roots
d. have noting to do with leaves

__6. The cuticle of a plant is primarily for
a. retention of water.          c. absorption of carbon dioxide.
b. conduction of water.       d. protection from strong sunlight.

__7. Which of the following is(are) specialization(s) that evolved in land plants that was(were) unnecessary in their aquatic ancestors?
a. xylem    b. stomata    c. roots    d. all of the above
wrote...
13 years ago

__4. Which of the following is TRUE of xylem?
a. conducts water up the plant c. connects with phloem b. conducts nutrients up the plant d. connects with soil


why is it wrong to say that xylem conducts water up the plant ? ( they do mean upward, right ? )
wrote...
Valued Member
Educator
13 years ago
I strongly apologize, I though it said what is FALSE, not true.

Xylem does conducts water and dissolved minerals from the roots to all the other parts of the plant.

I suppose by nutrients they mean glucose?

It should be A
wrote...
Valued Member
Educator
13 years ago
__24. The life cycle of flowering plants includes all of the following EXCEPT:
a. formation of pollen.      c. formation of cones    e. fertilization.
b. formation of eggs.          d. formation of seeds.

__25. Double fertilization produces a triploid tissue. This tissue is known as:
a. sperm tissue    b. the embryo       c. endosperms       d. fruit

__26. The Liverworts belong to the group known as:
a. Sphenophyta    b. Bryophyta       c. Lycophyta   d. Psilotophyta    e. Gymnosperms

__27. The Horstails belong to the group known as:
a. Sphenophyta    b. Bryophyta       c. Lycophyta     d. Psilotophyta   e. Gymnosperms

__28. The Club Moss include both the:
a. Whisk fern/ferns    b. horstails/ground pine   c. hornworms/liverworts    d. pines/ginkgos

__29. In the life cycle of the fern, the the__ is dominant, while in the life cycle of the moss, the ______ is kdominant.
a. gametophyte/sporophyte       c. sporophyte/sporophyte   
b. sporophyte/gametophyte        d. gametophyte/gametophyte

__30. In the ___ the sporophyte is completely dependent on the gametopyte.
a. hornworts    b. liverworts    c. moss   d. all of these       e. none of these
wrote...
13 years ago
actually i think that in ferns the dominant generation is the diploid one, all pteridohpytes have the sporophytic generation as the dominant one, i studied that for the last exam so i'm pretty sure.
wrote...
13 years ago Edited: 13 years ago, karim89
_8. Which of the following is NOT true of gametophytes?
a. They are haploid plants.       d. They are a stage in the life cycle of plants.
b. They produce gametes.       e. Their gametes are either male or female.
c. They are the result of sexual reproduction.



__9. Which of the following is TRUE of sporophytes?
a. They are haploid plants.
b. They produce gametes.      
c. They are the result of sexual reproduction.
d. They are a minor stage in the life cycle of all plants.
e. all of these

i don't really agree with this answer but it is the best one. Since a sporophyte develops from the zygote through mitosis, so it is the result of asexual reproduction. ( this is the same reasoning i used for the first question, so i could be wrong there too if this answer was to be right ).



__10. Which of the following are NOT seed-bearing plants?
a. cycads    b. ferns    c. ginkgos    d. gnetophytes

__11. Gymnosperms
a. are heterosporous.       c. produce megaspores.
b. produce microspores.    d. produce male and female gametophytes.


__12. The key innovation that helped seed-bearing plants radiate to high, dry environments is
a. pollen.    b. the cuticle.    c. xylem.    d. phloem.    e. lignin.

__13. Which of the following is NOT true of seedless vascular plants?
a. Sporophytes are independent of gametophytes.    c. Sporophytes have vascular tissue.
b. Water is not needed for gamete transport.       d. They cannot exist in dry habitats.

____14. In horsetails, lycophytes, and whisk ferns,
a. spores give rise to gametophytes.
b. the main plant body is a gametophyte.
c. the sporophyte bears sperm- and egg-producing organs.
d. the gametophyte is the dominant stage in the life cycle.
e. all of these

__15. The various forms of algae, even though they do photosynthesis and have similar characteristics as plants; however are NOT considered plants because they
a. are not multicellular.
b. lack strengthened cell walls.
c. never have specialized tissues.
d. lack modifications that protect the gametes and zygote from drying out.
e. All of the above are differences that separate the algae from plants.

because some algae are multicellular, they do have cellulose in their walls. But i wasn't sure between " c " and " d " , because some multicellular algae do have leaf-like and stem-like structures and holdfasts ( similar to roots ), so i guess we can call that specialized tissues, so it would be " d ".


__16. Gymnosperm microspores mature directly into
a. ovules.    b. seeds.    c. pollen grains.    d. cones.    e. sperm cells.

17. Gymnosperm megaspores are produced
a. within ovules.       c. by pollen grains.    e. by the union of egg and sperm cells.
b. within seeds.       d. by the gametophyte.

__18. Which of the following plants is NOT a Gymnosperm?
a. cycad    b. spruce    c. palm    d. ginkgo    e. gnetophyte

__19. A pine tree is
a. an angiosperm.       c. a sporophyte.
b. a gametophyte.       d. the dependent stage in the conifer life cycle.

__20. The first group with flowers are the
a. algae.    b. fern allies.    c. ferns.    d. angiosperms.    e. gymnosperms.

__21. Angiosperms are more advanced than gymnosperms because gymnosperms lack which structure found in angiosperms?
a. independent sporophyte    b. flowers    c. seeds    d. pollen grains e. spores

__22. The rapid expansion of angiosperms late in the Mesozoic era appears to be related to their coevolution with
a. dinosaurs.    b. gymnosperms.    c. insects.    d. mammals.    e. birds.

well i don't know about this one but i guess the answer would be insects because pollination in angiosperms is often done by insects.

__23. All of the following are characteristics of Angiosperms,EXCEPT:
a. are the most successful of all plants.
b. are the most diverse of all plants.
c. do not produce pollen
d. have embryos that are provided with food by an endosperm, a unique structure found only within the angiosperms.
e. produce flowers
wrote...
Valued Member
Educator
13 years ago

__22. The rapid expansion of angiosperms late in the Mesozoic era appears to be related to their coevolution with
a. dinosaurs.    b. gymnosperms.    c. insects.    d. mammals.    e. birds.

well i don't know about this one but i guess the answer would be insects because pollination in angiosperms is often done by insects.


Yes, it makes sense.
wrote...
13 years ago
i changed some answers, so plz check to see if i have mistakes, cuz the choices are a little inconclusive.
mark1532 Author
wrote...
13 years ago
thnks guys really Smiling Face with Open Mouth
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