Chapter 3

Question 1

The primary function of ______ is to produce seeds for reproduction

Answer 1

flowers

Question 2

enlarged end of a stem

Answer 2

pedicel

Question 3

part of the flower that holds developing seeds

Answer 3

receptacle

Question 4

leaf-like structures that protect the petals

Answer 4

sepals

Question 5

most conspicuous part of a flower

Answer 5

petal

Question 6

part of the flower that is an organ that produces pollen

Answer 6

stamens

Question 7

contains the sperm cells (male cells) of the flower

Answer 7

pollen

Question 8

slender, elongated stalk that is part of the stamen

Answer 8

filament

Question 9

enlarged structure at the tip of the filament; produces pollen

Answer 9

anther

Question 10

elongated, vase-shaped central structure of a flower

Answer 10

pistil

Question 11

swollen base of the pistil

Answer 11

ovary

Question 12

undeveloped seed

Answer 12

ovule

Question 13

contains egg cells (female cells)

Answer 13

ovules

Question 14

The 1 is the male reproductive part of a flower and the 2 is the female reproductive part

Answer 14

1. stamen
2. pistil

Question 15

stalk-like structure that connects the ovary to the tip of the pistil

Answer 15

style

Question 16

tip of the pistil that receives the pollen grains at the time of pollination

Answer 16

stigma

Question 17

flower that has the sepals, petals, stamens, and pistils

Answer 17

complete flower

Question 18

flower that lacks one or more of the four basic flower parts

Answer 18

incomplete flower

Question 19

any plant on which both staminate and pistillate flowers are produced in the same plant

Answer 19

monoecious

Question 20

plant that produces staminate and pistillate flowers on separate plants

Answer 20

dioecious

Question 21

many flowers on one stem

Answer 21

inflorescences

Question 22

chief factor affecting flowering

Answer 22

length of daylight and night

Question 23

ovary that has ripened

Answer 23

fruit

Question 24

functions as the seed-bearing structures of flowering plants

Answer 24

fruit

Question 25

transfer of pollen from an anther to the stigma of a pistil

Answer 25

pollination

Question 26

pollination that occurs within the same flower

Answer 26

self-pollination

Question 27

occurs when the pollen from an anther of one plant is transferred to a stigma of a flower on another plant

Answer 27

cross-pollination

Question 28

sweet-tasting, watery liquid produced by plants

Answer 28

nectar

Question 29

allergic reaction to pollen

Answer 29

hay fever

Question 30

chemical messenger that triggers symptoms to pollen as a reaction

Answer 30

histamines

Question 31

most important type of pollen that triggers hay fever

Answer 31

ragweed

Question 32

occurs when the sperm cell fuses with the egg cell

Answer 32

fertilization

Question 33

reproductive cells

Answer 33

gametes

Question 34

reproduction in which the sperm and egg cell unite

Answer 34

sexual reproduction

Question 35

forms after pollination by the pollen grain

Answer 35

pollen tube

Question 36

forms when the sperm cell unites with the egg cell

Answer 36

embryo

Question 37

nutritional tissue that surrounds the fertilized egg and provides nourishment to the growing embryo

Answer 37

endosperm

Question 38

two sperm cells are required for reproduction

Answer 38

double reproduction

Question 39

occurs when a fruit grows larger and develops

Answer 39

ripening

Question 40

form from one flower that has only one pistil

Answer 40

simple fruits

Question 41

form from one flower that has several pistils

Answer 41

aggregate fruits

Question 42

fruit that forms from several flowers

Answer 42

multiple fruit

Question 43

simple fruits in which the entire ovary is fleshy and juicy throughout

Answer 43

berries

Question 44

fruits with woody inner layer and fleshy outer layer

Answer 44

drupes

Question 45

simple fruits with an outer fleshy layer and an inner papery core

Answer 45

pomes

Question 46

fruits that consist of a pod enclosing several seeds

Answer 46

legumes

Question 47

fruits that consist of small dry seeds with one or more wing-like structures attached to them

Answer 47

samaras

Question 48

simple dry fruits consisting of a seed enclosed in a hard covering

Answer 48

nuts

Question 49

simple fruits consisting of a seed and a thin shell

Answer 49

achenes

Question 50

the fruit of a grass plant

Answer 50

grain

Question 51

example of aggregate fruits

Answer 51

blackberries

Question 52

example of multiple fruits

Answer 52

pineapple

Question 53

shell-like fruit covering of wheat that can be removed only by milling

Answer 53

bran

Question 54

part of wheat used in making white flour

Answer 54

endosperm

Question 55

embryo of the young wheat plant

Answer 55

germ

Question 56

able to germinate and grow

Answer 56

viable

Question 57

seed dispersal where an outside source carries the seeds

Answer 57

agent dispersal

Question 58

seed dispersal where the plant is responsible for spreading its seeds

Answer 58

mechanical dispersal

Question 59

part of the seed that is a tiny shoot that will develop into the stem and leaves of the plant

Answer 59

plumule

Question 60

part of the seed that will develop into the root system of the plant

Answer 60

radicle

Question 61

part of the seed that provides nutrition to the growing embryo

Answer 61

endosperm

Question 62

part of the seed that provides a protective covering for the seed

Answer 62

seed coat

Question 63

scar of the seed coat that marks where the seed was attached to the ovary wall during its development

Answer 63

hilium

Question 64

sprouting of a seed

Answer 64

germination

Question 65

period of inactivity

Answer 65

dormancy

Question 66

Most of the food stored in the cotyledons is in the form of _____

Answer 66

starch