Exam 23: Plants

A) It produces flowers.
B) It produces fruits.
C) The gametophyte is the dominant generation.
D) It has vascular tissue.
E) Double-fertilization results in the production of endosperm.

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A) One phase of the life cycle takes place on land and the other in water.
B) One phase of the life cycle is photosynthetic and the other is heterotrophic.
C) One phase of the life cycle is diploid and the other is haploid.
D) One phase of the life cycle is unicellular and the other is multicellular.
E) One phase of the life cycle is motile and the other is stationary.

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A) provision of carbohydrates for the plant
B) attraction of pollinators
C) preservation of delicate flower parts
D) a sticky trap for parasitic insects
E) prevention of desiccation

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A) The diploid generation of streptophyte algae is unicellular whereas the diploid generation of plants is multicellular.
B) The diploid generation of streptophyte algae is multicellular whereas the diploid generation of plants is unicellular.
C) The haploid generation of streptophyte algae is multicellular whereas the diploid generation of plants is unicellular.
D) The haploid and diploid generations of both steptophyte algae and plants are unicellular.
E) The haploid and diploid generations of both streptophyte algae and plants are multicellular.

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A) streptophyte algae
B) tracheophytes
C) spermatophytes
D) gymnosperms
E) angiosperms

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A) plasmodesmatA.
B) sexual reproduction.
C) chlorophyll a and b.
D) plant specific features of cell division.

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A) The two terms are merely two names for the same thing.
B) A pistil is part of a male component of the flower whereas a carpel is part of a female component.
C) A pistil can be composed of either a single carpel (in which case the two terms are synonymous) or of two or more carpels fused together.
D) A pistil is a reproductive part of a flower whereas a carpel is a showy vegetative part.
E) A pistil is part of the female component of a flower and a carpel is not even a flower part at all.

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A) lignin
B) cutin
C) chitin
D) cellulose
E) sporopollenin

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A) The three terms are synonymous.
B) The ovary is the lower part of the pistil that houses the ovules (also called eggs) .
C) An ovule is the lower part of the pistil that houses the ovary that in turn contains the eggs.
D) Ovules are small ovaries and either can produce eggs.
E) The ovary is the lower part of the pistil that houses the ovules that in turn contain the eggs.

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A) fertilization of two eggs in the same flower
B) fertilization of an egg by two sperm
C) fertilization of an egg by one sperm and an endosperm-forming cell by another sperm
D) fertilization of two eggs by the same sperm
E) fertilization of an egg and an endosperm-forming cell by the same sperm

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A) flagellated sperm
B) pollen grains
C) ovules
D) a nucellus
E) male cones

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A) sperm after it has entered the archegonium
B) nutritive tissue produced within antheridia
C) sperm cells enclosed within pollen grains
D) tissue stored in seeds that provides nutrition for embryos
E) sperm produced at the end of the flowering season

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A) angiosperms
B) gymnosperms
C) ferns
D) mosses
E) horsetails

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A) complex streptophyte algae
B) Sphagnum moss
C) Lycophytes
D) Conifers
E) Daisies

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