Chapter 30 Vocab

Question 0

Sporophytes

Answer 0

The dominant, diploid generation of angiosperms

Question 1

Gametophytes

Answer 1

Male or female haploid plants that are only a few cells and rely entirely on sporophytes for nutrition

Question 2

Fertilization

Answer 2

The fusion of gametes resulting in diploid zygotes

Question 3

Receptacle

Answer 3

The part of the stem that floral organs are attached to

Question 4

Carpel

Answer 4

The female reproductive feature

Question 5

Stamens

Answer 5

The male reproductive feature

Question 6

Petals

Answer 6

The brightly colored portion of the plant that advertises it to pollinators

Question 7

Sepals

Answer 7

Enclose and protect unopened buds and resemble leaves

Question 8

Ovary

Answer 8

Female reproductive organ that encloses the ovule

Question 9

Style

Answer 9

The neck of a carpel

Question 10

Stigma

Answer 10

The sticky part at the top of the style that captures pollen

Question 11

Ovules

Answer 11

Unfertilized “eggs” of the carpel

Question 12

Filament

Answer 12

Stalk-like structure of the stamen

Question 13

Anter

Answer 13

A terminal organ on top of the filament that contains and releases pollen

Question 14

Complete flowers

Answer 14

Flowers that contain all 4 basic organs

Question 15

Incomplete flower

Answer 15

Flowers lacking one or more parts of the flower

Question 16

Unisexual flowers

Answer 16

Flowers which contain the reproductive organs of only one gender

Question 17

Inflorescence

Answer 17

Clusters of flowers

Question 18

ABC hypothesis

Answer 18

Theory that explains how 3 genes direct formation of 4 organs
A: sepals
AB: petals
BC: stamens
C: carpels

Question 19

Embryo sac

Answer 19

Forms within a fertilized ovule

Question 20

Megasporangium

Answer 20

The tissue within the ovary that the ovules develop in

Question 21

Integuments

Answer 21

Protective tissue that surround the magasporangium

Question 22

Micropyle

Answer 22

A small gap in the integuments

Question 23

Megaspores

Answer 23

Cell within megasporangium divides into 4 MEGASPORES, only one of which survives to divide 3 times by mitosis w/o cytokenisis

Question 24

Microsporangia

Answer 24

Pollen sacs found in anters

Question 25

Microsporocytes

Answer 25

Diploid cells within the pollen sac

Question 26

Microspores

Answer 26

Haploid cells that truly from the microsporocyte going though meiosis

Question 27

Pollen grain

Answer 27

The microspore along with the tube cell it creates via division

Question 28

Pollen tube

Answer 28

A tube cell which caries pollen grain, as it divides into two sperm cells, to the ovary

Question 29

Pollination

Answer 29

The transfer of pollen from an anther to a stigma

Question 30

Endosperm

Answer 30

A food storing tissue in the seed caused by one of the sperms joining with the polar nuclei and forming a triploid (3n) nucleus

Question 31

Double fertilization

Answer 31

One sperm joins egg and forms zygote, other joins polar nuclei and forms endosperm.

Question 32

Suspensor

Answer 32

A thread if cells that anchor embryo to parent cell

Question 33

Dormancy

Answer 33

A state of no metabolic activity

Question 34

Seed coat

Answer 34

A hard protective case that encloses the embryo and food

Question 35

Hypocotyl

Answer 35

Embryonic axis located under where cotyledons are attached

Question 36

Radicle

Answer 36

Embryonic root

Question 37

Epicotyl

Answer 37

Part of embryonic axis above cotyledons and below the first leaves

Question 38

Plumule

Answer 38

Epicotyl, young leaves, and apical meristem collectively

Question 39

Coleoptile

Answer 39

Sheath covering the shoot of grass seed

Question 40

Coleorhiza

Answer 40

sheath protecting roots of grass seed

Question 41

Inbibition

Answer 41

The uptake of water due to the low water potential of the dry seed

Question 42

Fruit

Answer 42

The flower develops into a FRUIT which protects enclosed seeds and aids In dispersal

Question 43

Pericarp

Answer 43

The thick wall of the fruit

Question 44

Simple fruit

Answer 44

Derived from a single carpel or fused carpels

Question 45

Aggregate fruit

Answer 45

Results from a single flower that has more than one carpel

Question 46

Multiple fruit

Answer 46

Inflorescence of flowers that join ovaries as they grow

Question 47

Accessory fruit

Answer 47

Other parts of the fruit besides the ovary form the "fruit"