Bio 1011 Chapter 38

Question 1

Simple fruit

Answer 1

A fruit derived from a single or severe fused carpels

Question 2

Pollination

Answer 2

The transfer of pollen to the part a seed plant containing the ovules, a process required for fertilizations

Question 3

Accessory fruit

Answer 3

A fruit, or assemblage of fruits, in which the fleshy parts are derived largely or entirely from tissues other than the ovaruy

Question 4

Sepal

Answer 4

A modified leaf in angiosperms that helps enclose and protect a flower bud before it opens.

Question 5

Fragmentation

Answer 5

A means of assexual reproduction whereby a single parent breaks into parts that regenerate into whole new individuals

Question 6

Stamen

Answer 6

The pollen-producing reproductive organ of flower, consisting of anther and a filament.

Question 7

Coleorhiza

Answer 7

The covering of the young root of the embryo os a grass seed.

Question 8

Embryo sac

Answer 8

The female gametophyte of angiosperms, formed from the growth and division of the megaspore into a multicellular structure that typically has eight haploid nuclei.

Question 9

Assexual reproduction

Answer 9

The generation of offspring from a single parent that occurs without the fusion of gametes (by budding, division of a single cell, or division of the entire organismo into two or more parts). In most cases, the offspring are genetically identical to the parent.

Question 10

Vegetative reproduction

Answer 10

assexual reproduction in plants.

Question 11

Fruit

Answer 11

A mature ovary of a flower. The fruit protects dormant seeds and often functions in their dispersal.

Question 12

Seed coat

Answer 12

A tough outer covering of a seed, formed from the outer coat of an ovule. In a flowering plant. the seed coat encloses and protects the embryo and endosperm.

Question 13

Hypocotyl

Answer 13

In an angiosperm embryo, the embryonic axis below the point of attachment of the cotyledons and above the radicle.

Question 14

Inflorescence

Answer 14

A group of flowers tightly clustered together.

Question 15

Self-incompatibility

Answer 15

The ability of a seed plant to reject its own pollen and sometimes the pollen of closely related individuals.

Question 16

Incomplet flower

Answer 16

A flower in which one or more of the four basic floral organs (sepals, petals, stamens or carpels) are either absent or nonfunctional.

Question 17

Pollen tube

Answer 17

A tube that forms after germinations of the pollen grain and that functions in the delivery of sperm to the ovule.

Question 18

Imbibition

Answer 18

The physical adsorption of water onto the internal surfaces of structures.

Question 19

Ovary

Answer 19

(1) In flowers, the portion of a carpel in which the egg-containing ovules develop. (2) In animals, the structure that produces female gametes and reproductive hormones.

Question 20

Pstil

Answer 20

A single carpel or a group of fused carpels

Question 21

Epicotyl

Answer 21

In an angiosperm embryo, the embryonic axis above the point of attachment of the cotyledons and below the first pair of miniature leaves.

Question 22

Herbivory

Answer 22

An interaction in which an organism eats part of a plant or alga.

Question 23

Receptacle

Answer 23

The base of a flower; the part of the stem that is the site of attachment of the floral organs.

Question 24

Coevolution

Answer 24

The joint evolution of two interacting species, each is response to selection imposed by the other.

Question 25

Microspore

Answer 25

A spores from a heterosporous plant species that develops into a male gametophyte.

Question 26

Dioeious

Answer 26

In plant biology, having the male and female reproductive parts on different individuals of the same species.

Question 27

Endosperm

Answer 27

In angiosperm, a nutrient-rich tissue formed by the union of a sperm with two polar nuclei during double fertilization. The endosperm provides nourishment to the developing embryo in angiosperm seeds.

Question 28

Carpel

Answer 28

The ovule-producing reproductive organ of a flower, consisting of the stigma, style, and ovary.

Question 29

Petal

Answer 29

Are a colorful part of a flower that advertise it to insects and other pollinators.

Question 30

Ovule

Answer 30

A structure that develops within the ovary of a seed plant and contains the female gametophyte,

Question 31

Megaspore

Answer 31

A spore from a heterosporous plant species that species that develops into a female gametophyte.

Question 32

Style

Answer 32

the stalk of a flower’s carpel, with the ovary at the base and the stigma at the top.

Question 33

Coleoptile

Answer 33

The covering of the young shoot of the embryo of a grass seed.

Question 34

Callus

Answer 34

A mass of dividing, undifferentiated cells growing in culture.

Question 35

Stock

Answer 35

The plant that provides the toot system when making a graft

Question 36

Aggregate fruit

Answer 36

A fruit derived from a single flower that has more than one carpel.

Question 37

Complete flower

Answer 37

A flower that has all four basic organs: Sepals, petals, stamens, and carpels.

Question 38

Radicle

Answer 38

An embryonic root of a plant.

Question 39

Apomixis

Answer 39

The ability of some plant species to reproduce asexually through seed without fertilization by a male gamete

Question 40

multiple fruit

Answer 40

A fruit derived from an entire inflorescence.

Question 41

Double fertilization

Answer 41

A mechanism of fertilization in angiosperms in which two sperm cells unite with two cells in the female gametophyte (embryo sac) to form the zygote and endosperm.

Question 42

transgenic

Answer 42

Pertaining to an organism whose genome contains a gene introduced from another organism of the same or a different species.