Exam 36: Plant Growth and Reproduction

Imagine driving a nail into a tree trunk. Which of the following tissues would the nail point first contact?

A plant's physiological response to day length is called ____________________.

The central cell of the embryo sac contains

Sapwood is xylem that is too clogged to transport water.

The energy used by seedlings before they begin photosynthesis is stored in the ____________________.

Aboveground, plants grow by adding new bud-stem-____________________ units.

Embryo sacs are found in the

Plants that use animals for pollination always provide a reward.

In flowering plants, sperm form the pollen grain.

The flesh of an apple forms from the

If a mutation resulted in the formation of pollen that could not form a pollen tube, when the pollen landed on the stigma,

The practice of moving plants to more northern locations in anticipation of the effects of global climate change is known as ____________________.

At what point in the plant life cycle does cell division convert diploid cells into haploid cells?

In what way does endosperm differ from sperm?

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)?

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

Which of the following is not a plant hormone?

What part(s)of the embryo sac shown in the diagram below fuse(s)with sperm from a pollen grain?

Spores undergo mitosis to form the haploid ____________________, one of the two stages in the life cycle of plants.

The growth of a plant zygote into an embryo occurs within the ____________________.