7Th Grade Science Vocabular

Front 1

Small structure produced by the male reproductive organs of a seed plant; has water-resistant coat, cand evelop from a spore, and contains ganetophyte parts that will produce sperm

Back 1

Pollen Grain

Front 2

Underground stem of a fern

Back 2

Rhizome

Front 3

Haploid cells produced in te gametophyte stage of a plant that can divide by mitosis and forms structures or an entire new plant or can develop into sex cells

Back 3

spores

Front 4

Leaf of a ferm that grows from the rhizome

Back 4

frond

Front 5

Series of events that results in the growth of a plant from a seed

Back 5

Germination

Front 6

Transfer of pollen grains to the female part of a seed plant by agents such as gravity, water, wind, and animals

Back 6

pollination

Front 7

female reproductive organ that produces eggs and is located in the lower part of the body

Back 7

ovary

Front 8

plant life cycle stage that begins when cells in reproductive organs undergo meiosis and produce haploid cells (spores)

Back 8

Gametophyte stage

Front 9

The form of a moss plant that produces sex cells

Back 9

gametophyte

Front 10

gametophyte of a ferm

Back 10

prothallus

Front 11

what develops from some spores in seed plants

Back 11

pollen grains

Front 12

a plant that produces flowers

Back 12

angiosperm

Front 13

this includes the stalk and capsule where spores are produced

Back 13

sporophyte

Front 14

female reproductive organ of a flower

Back 14

pistil

Front 15

process that a seed undergoes to become a plant

Back 15

germination

Front 16

transfer of pollen grains from the stamen to the ovules

Back 16

pollination

Front 17

underground stem on a fern

Back 17

rhizome

Front 18

structures where a fern produces spores

Back 18

sori

Front 19

male reproductive organ of a flower; consists of an anther and a filament

Back 19

stamen

Front 20

contains an egg cell, food-storage tissue and a sticky fluid

Back 20

ovules

Front 21

swollen base of pistil; where ovules form

Back 21

ovary

Front 22

foern spor can grow into a small, green heart-shaped gametophyte plant called what

Back 22

prothallus

Front 23

are mosses vascular or nonvascular

Back 23

nonvascular

Front 24

what does a prothallus contain to make its own food

Back 24

chlorophyll

Front 25

Pollen grains are carried by what

Back 25

rain, wind and animals

Front 26

what is the sticky part of the plant's pistil

Back 26

stigma

Front 27

when cells form having a haploid number of chromosomes

Back 27

gametophyte stage

Front 28

when cells form having a diploid number of chromosomes

Back 28

sporophyte stage

Front 29

the brightly colored part of a flower

Back 29

petal

Front 30

the part that covers the bud

Back 30

sepal

Front 31

stalk of male organ

Back 31

filament

Front 32

where pollen grains form

Back 32

anthern

Front 33

sticky area of a flower

Back 33

stigma

Front 34

stalk of female organ

Back 34

style

Front 35

where ovules are formed

Back 35

ovary

Front 36

Plants reproduce in two ways what are they

Back 36

sexually and asexually

Front 37

Reproduction where a new plant can be grown from a leaf, stem or root

Back 37

sexual reproduction

Front 38

Reproduction where a sperm cell fertilizes an egg cell to forma zygote

Back 38

asexual

Front 39

Plants have a _________ stage life cycle

Back 39

two

Front 40

What stage begins when sex cells produce haploid cells called spores

Back 40

gameotophyte

Front 41

What stage begins with fertilization

Back 41

sporophyte

Front 42

what plants have a life cycle that illustrates typical sexual reproduction in nonvascular seedless plants

Back 42

mosses

Front 43

what does the gameotophyte stage produce

Back 43

sex cells

Front 44

what does the sporophyte stage produce

Back 44

spores

Front 45

most vascular seedless plants are what

Back 45

ferns