Chapter 18: Gymnosperms


Phylum Coniferophyta; p. 440; difficult; ans: c



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Chapter 18-final
Chapter 17-final
28. Phylum Coniferophyta; p. 440; difficult; ans: c

Which of the following statements concerning pollination drops is FALSE?


a. They contain sugars and amino acids.

b. They contain proteins that function in pathogen defense.

c. They prevent pollen grains from contacting the nucellus.

d. They contain proteins that function in pollen development.

e. They exude from the open end of ovules.
29. Phylum Coniferophyta; p. 440; moderate; ans: b

In pines, the generative cell of the male gametophyte divides to produce:


a. two sperm cells.

b. one sterile cell and one spermatogenous cell.

c. one sterile cell and one sperm cell.

d. two spermatogenous cells.

e. two sterile cells.


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