Seedless and Seed Plant Flashcards

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/18

flashcard set

Earn XP

Description and Tags

Flashcards covering key vocabulary from the lecture notes on seedless plants and seed plants, focusing on life cycles, structures, and evolutionary advantages.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

19 Terms

1
New cards

Sporangia

Organs that produce haploid spores via meiosis.

2
New cards

Gametangia

Organs that produce haploid gametes via mitosis.

3
New cards

Antheridia

Male gametangia.

4
New cards

Archegonia

Female gametangia where fertilization occurs.

5
New cards

Homosporous

Condition where each spore produces a gametophyte with both archegonia and antheridia.

6
New cards

Protonemata

Early gametophytes with a high surface area to volume ratio to enhance nutrient absorption in mosses.

7
New cards

Rhizoids

Root-like structures that anchor mosses, but do not transport water.

8
New cards

Sori

Clusters of sporangia on the underside of fern leaves.

9
New cards

Fiddleheads

The diploid embryo develops into a new sporophyte.

10
New cards

Microscopic gametophytes

Develop within the parental sporophyte and are protected from environmental stress.

11
New cards

Heterospory

Spores are of two types, male and female.

12
New cards

Megaspore

A haploid megaspore within a megasporangium divides by mitosis to become a female n gametophyte that will produce an egg cell (by mitosis)

13
New cards

Microspore

A haploid microspore produced via meiosis in a diploid microsporangium divides by mitosis to become a male n gametophyte that will produce sperm cells (by mitosis).

14
New cards

Ovules

Structures in a 2n parent sporophyte that contain an outer 2n protective integument and 2n female megasporangium cells which produce the female n megaspore (via meiosis).

15
New cards

Seeds

Protect, disperse, and initially feed sporophyte embryos and allow some sporophyte embryos to remain dormant for years awaiting favorable conditions

16
New cards

Pollen grains

Microspores grow via mitosis into haploid pollen grains that contain haploid (n) male gametophytes (also much reduced in size) that that are protected and widely dispersed.

17
New cards

Epicotyl

Stem above cotyledons.

18
New cards

Radicle

Embryonic root.

19
New cards

Lignin

Plant Vascular tissue used for support.