Biology U2L12 Life Cycle Of Flowering Plants

Front 1

Explain the relationship between the pollination of a flower and the production of one or more seeds.

Back 1

Explain the relationship between the pollination of a flower and the production of one or more seeds.
One pollen grain is required for the production of each seed.

Front 2

Name the part(s) of an anthophyte flower that becomes the fruit.

Back 2

usually the ovary

Front 3

Describe the process of double fertilization in anthophytes.

Back 3

Double fertilization occurs when one sperm unites with the egg cell, forming the diploid zygote and the other sperm cell fuses with the central cell to form a triploid cell

Front 4

Infer how the production of nectar could enhance the pollination of a flowering plant.

Back 4

Nectar attracts animals such as insects and bats; they get pollen on them as they try to reach the nectar. As these animals travel from flower to flower, they cross-pollinate the flowers

Front 5

Sequence the formation of the female gametophyte in a flowering plant.

Back 5

In the ovule, meiosis produces four haploid megaspores. One of these will undergo three mitotic divisions. The eight nuclei make up the embryo sac or female gametophyte

Front 6

Identify whether each organ of a flower is involved in pollination, fruit formation, seed production, or seed dispersal.

Back 6

pollination: stamen, pistil,; fruit formation: pistil, sometimes other flower organs; seed production: pistil; seed dispersal: pistil.

Front 7

two nuclei in the center of the egg sac of a flowering plant that become the triploid (3 n ) endosperm when joined with a sperm during double fertilization.

Back 7

polar nuclei

Front 8

anthophyte fertilization in which one sperm fertilizes the egg and the other sperm joins with the central cell; results in the formation of a diploid (2 n ) zygote and a triploid (3 n ) endosperm.

Back 8

double fertilization

Front 9

food storage tissue in an anthophyte seed that supports development of the growing embryo.

Back 9

endosperm

Front 10

period of inactivity in a mature seed prior to germination (sleep)

Back 10

dormancy

Front 11

beginning of the development of an embryo into a new plant.

Back 11

germination

Front 12

embryonic root of an anthophyte embryo; the first part of the young sporophyte to emerge during germination.

Back 12

radicle

Front 13

portion of the stem nearest the seed in a young plant.

Back 13

hypocotyl