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Flashcards in Text Chapter 12: Plants Deck (17):
1

Unique Properties of Plants

eukaryotic, multicellular, autotrophic: photosynthetic, sexual and asexual reproduction, cell wall made of cellulose, usually non-motile except for gametes, adapted to life on land

2

Common adaptations of plants for living on land

roots and root-like structures, conduction vessels, structural support, waterproof covering, pores for gas and water exchange, mechanisms for protection and dispersal of reproductive products

3

Components of the Shoot System

leaves, stems, reproductive structures

4

Components of the Root System

root hairs, root cap

5

Functions of a Leaf

exposes surface to light, major site of photosynthesis, conserves water, provides for gas exchange

6

Function of a Stem

holds leaf up to light, transports substances through vascular tissue

7

Function of a Root

anchors plant in soil, takes up water and minerals from soil, stores food

8

Order in which Existing Plant Groups Evolved

non-vascular, vascular seedless, gymnosperms, angiosperms

9

Sporophyte

produces spores by meiosis

10

Gametophyte

produces spores by mitosis

11

Mosses

non-vascular (no fluid-conducting vascular system), enclosed reproductive structures, require moist environments

12

Ferns

vascular seedless, tall leafy diploid sporophyte, haploid gametophyte requires moist environment

13

Gymnosperms

vascular plants with seeds, pollinated by wind, confiners adapted to cold, dry environment- cones to protect seeds, evergreen, waterproof needle-like leaves, sap doesn’t freeze

14

Angiosperms

vascular plants with flowers and fruit, broad waterproof leaves, greatly reduced gametophyte (pollen grain and embryo sac with egg), many have animal pollinators and seed distributors, some use wind, seed contains diploid embryo, largest number of species (250,000)

15

Reproductive Structures for Ferns

gametophyte

16

Reproductive Structures for Gymnosperms

cone

17

Reproductive Structures for Angiosperms

flower