Exam 32: Plant Growth and Reproduction

In flowering plants, sperm forms the pollen grain.

Plants growth above ground can be accomplished by adding new

Because its cells are diploid, the ovule is considered to be a part of the

Which of the following animals would be least likely to disperse seeds?

Horticulturists often remove the anthers from flowers to

Mature pollen grains contain three cells; two sperm cells and a(n) ____ ____.

Apical dominance develops when the shoot apex produces ______, a hormone that suppress the outgrowth of lateral buds.

A plant that completes its life cycle in one year is a(n) _____.

The protective chemical produced by plants that can be addictive to humans is ________.

Apical dominance occurs when auxins produced by

Groups of perpetually young undifferentiated cells from which new cells arise are termed

In which of the following structures is sperm produced?

Seed coats develop from the outer portion of the _____.

Increases in length due to cell divisions at apical meristems are called _______ growth.

When a plant germinates from a seed it has

In which of the following structures would an egg be found?

Some plants can sense the duration of light or dark during a 24-hour period.

The figure below illustrates the results of a laboratory experiment that simulates potted irises being exposed to differing lengths of darkness. How would flowering in these irises be affected by disrupting the length of their light exposure?

Which of the following components is correctly matched with its location?

Flowers, like the ones in the figure below, display spectacular colors, shapes, and odors, in combination with food rewards such as nectar, in order to convince pollinating animals to visit several flowers of the same species to transfer pollen for reproduction. How might a flower be specialized to attract hummingbird pollinators (above right) and discourage insect pollinators (above left)?