Exam 29: Life Cycles of Flowering Plants

Why is colony collapse disorder important?

The anther and filament make up the male part of the flower called the ____.

How are apple trees that have tasty fruit reproduced?

Matching Match the plant hormone with its description. -causes abscission A)ethylene B)cytokinin C)auxin D)abscisic acid E)gibberellin

In mature eudicot seeds, where are nutrients stored?

The following diagram depicts the life cycle of a cherry, a eudicot. Match the specified labels in the diagram with the corresponding life cycle stage. a.The pollen tube reaches the ovule, penetrates it, releases two sperm cells, and double fertilization occurs. b.Mitosis of a microspore followed by differentiation results in a two-celled pollen grain. c.Three megaspores disintegrate; in the remaining megaspore, three rounds of mitosis without cytoplasmic divisions produce a single cell with eight haploid nuclei. d.Pollen grain lands on a receptive stigma and germinates. e.An ovule forms in the ovary and a cell in the ovule enlarges. f.Pollen sacs form in an anther. g.Four haploid (n ) megaspores form by meiosis of the enlarged cell in the ovule. h.Four haploid (n ) microspores form by meiosis of a cell in the pollen sac. i.Uneven cytoplasmic divisions produce a seven-celled female gametophyte. j.When the pollen sacs split open, the anther releases pollen grains. -Which stage is indicated by label 1?

Matching Match the plant hormone with its description. -closes stomata in times of stress A)ethylene B)cytokinin C)auxin D)abscisic acid E)gibberellin

What is it called when bees suddenly and mysteriously abandon their queen and many living larvae, despite abundant stored pollen and honey?

Approximately, how many varieties of edible apples exist today?

The following diagram depicts the life cycle of a cherry, a eudicot. Match the specified labels in the diagram with the corresponding life cycle stage. a.The pollen tube reaches the ovule, penetrates it, releases two sperm cells, and double fertilization occurs. b.Mitosis of a microspore followed by differentiation results in a two-celled pollen grain. c.Three megaspores disintegrate; in the remaining megaspore, three rounds of mitosis without cytoplasmic divisions produce a single cell with eight haploid nuclei. d.Pollen grain lands on a receptive stigma and germinates. e.An ovule forms in the ovary and a cell in the ovule enlarges. f.Pollen sacs form in an anther. g.Four haploid (n ) megaspores form by meiosis of the enlarged cell in the ovule. h.Four haploid (n ) microspores form by meiosis of a cell in the pollen sac. i.Uneven cytoplasmic divisions produce a seven-celled female gametophyte. j.When the pollen sacs split open, the anther releases pollen grains. -Which stage is indicated by label 8?

The structure that supports the pollen sacs is called the ____.

Flowers form on the _____, a diploid, spore-producing plant body that grows by ____ from a fertilized egg.

As part of an experiment, a student cuts off the stigma of a flower. What will happen?

Green bananas can be ripened quickly by putting them in brown paper bags. Which hormone accumulates to cause this effect?

Flowering plants undergo ________, in which one of the sperm delivered by the pollen tube fuses with the egg, while another fuses with a central cell.

In monocots cultivated for human consumption, such as wheat, rye, and barley, what part of the seed contains most of the proteins and vitamins?

The apples from the apple trees Johnny Appleseed sold to homesteaders were made from ____.

When covered with red cellophane, a plant would ______.

Which of the following develops into an embryo?

The following diagram depicts the life cycle of a cherry, a eudicot. Match the specified labels in the diagram with the corresponding life cycle stage. a.The pollen tube reaches the ovule, penetrates it, releases two sperm cells, and double fertilization occurs. b.Mitosis of a microspore followed by differentiation results in a two-celled pollen grain. c.Three megaspores disintegrate; in the remaining megaspore, three rounds of mitosis without cytoplasmic divisions produce a single cell with eight haploid nuclei. d.Pollen grain lands on a receptive stigma and germinates. e.An ovule forms in the ovary and a cell in the ovule enlarges. f.Pollen sacs form in an anther. g.Four haploid (n ) megaspores form by meiosis of the enlarged cell in the ovule. h.Four haploid (n ) microspores form by meiosis of a cell in the pollen sac. i.Uneven cytoplasmic divisions produce a seven-celled female gametophyte. j.When the pollen sacs split open, the anther releases pollen grains. -Which stage is indicated by label 3?