Chapter 20 Vocab

Front 1

alkaloid

Back 1

chemical produced by plants that contain nitrogen, many of which are used in medicine

Front 2

angiosperm

Back 2

seed plant whose embryos are enclosed by fruit

Front 3

Botany

Back 3

study of plants

Front 4

cone

Back 4

reproductive structure of gymnosperms inside which the female gamete is fertilized and seeds are produced

Front 5

cotyledon

Back 5

embryonic leaf inside of a seed

Front 6

cuticle

Back 6

in plantd, a waxy layer that holds in moisture; in insects, a tough exoskeleton made of nonliving material

Front 7

dicot

Back 7

flowering plant whose embryos have two cotyledons

Front 8

Ethnobotany

Back 8

study of how various cultures use plants

Front 9

flower

Back 9

female reproductive structure of an angiosperm

Front 10

fruit

Back 10

fertalized and mature ovary of a flower

Front 11

gymnosperm

Back 11

seed plant whose seeds are not enclosed by fruit.

Front 12

lignin

Back 12

complex polymer that hardens cell walls of some vascular tissues in plants

Front 13

monocot

Back 13

flowering plant whose embryos have one cotyledon

Front 14

Pharmacology

Back 14

study of drugs and their effect on the body

Front 15

plant

Back 15

multicellular eukaryote that produces its own food through photosynthesis

Front 16

pollen grain

Back 16

two-celled stucture that contains the male form of the plant's gamete

Front 17

pollination

Back 17

process by which seed plants become fertilized without the need for free-standing water

Front 18

seed

Back 18

structure used by some land plants to store and protect the embryo

Front 19

stomata

Back 19

(sing: stoma) pores in the cuticle of a plant through which gas exchange occurs

Front 20

vascular system

Back 20

collection of specialized tissues in some plants that transports mineral nutrients up from the roots and brings sugars down from the leaves

Front 21

wood

Back 21

fibrous material made of dead cells that are part of the vascular system in some plants