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Glencoe Life Science
Ch. 5 Plant Reproduction
12
Science
7th Grade
11/07/2007

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Cards

Term
Alternation of Generations
Definition

Alternation of Generations: Occurs when a plant's life cycle alternates between a sex cell-producing stage and a spore-producing stage.

(Ch. 5 pg. 125)

Term
Stamen
Definition

Stamen: Male reproductive organ inside the flower of an angiosperm; consists of a filament and an anther.

(Ch. 5 pg. 133)

Term
Sporophyte (SPOR uh fite) Stage
Definition

Sporophyte (SPOR uh fite) Stage: Plant life cycle stage in which all plant sturctures are made of cellls with a diploid number (2n) of chromosomes.

(Ch 5 pg 124)

Term
Sori
Definition

Sori: Spore-producing structures on the undersides of fern fronds.

(Ch. 5 pg. 126)

Term
Pollen Grains
Definition

Pollen Grains: Produced by the mail reproductive organs of seed plants; two sperm develop in each pollen grain.

(Ch. 5 pg. 130)

Term
Rhizome
Definition

Rhizome: Underground stem of a fern, from which a root grow

(Ch. 5 pg. 126)

Term
Prothallus
Definition

Prothallus: Fern gametophyte which can make its own food, absorb water and nutrients, and has both mail and female reproductive structures.

(Ch. 5 pg. 126)

Term
Pollination
Definition

Pollination: Transfer of the pollen grains from the stamen to the stigma.

(Ch. 5 pg. 134)

Term
Pistil
Definition

Pistil: Female reproductive organ inside the flower of an angiosperm; consists of a sticky stigma, a style and an ovary.

(Ch. 5 pg. 133)

Term
Gametophyte (ghu MEET uh fite) Stage
Definition

Gametophyte (ghu MEET uh fite) Stage: Plant life cycle stage in shich all plant structures are made of cells with a haploid number (n) of chromosomes.

(Ch. 5 pg. 124)

Term
Ovary
Definition

Ovary: In angiosperm, the swollen base of the pistil where the ovules are formed.

Term
Frond
Definition

Frond: Leaf of a fern that grows from rhizome.

(Ch. 5 pg. 126)

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