Biology HN: Plant Reproduction

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What is the function of the generative nucleus?

divides to form 2 sperm nuclei

The plan of the _____ generation is larger and lives longer than the plant of the other generation

dominant

What is the root of a fern called?

rhizome

The sacs on the backside of a fern frond where spores are made are called....

sori

Fertilization in angio sperms is called ....

double fertilization

During fertilization, 1 sperm nucleus joins with 1 ____ = zygote

egg

The megaspore contains the...

egg

The embryo sac divides into 1 ____ and 2 ____ _____,

egg; polar nuclei

What is the female gametophyte generation in angiosperms?

embryo sac

Where does fertilization take place in conifers?

female cone (megasporangium)

What does the sporophyte generation of a fern consist of?

fern fronds attached by small roots called rhizomes

Curled fer fronds are called....

fiddleheads

The thin support portion of the stamen is called the...

filament

The specialized reproductive organs in flowering plants are located inside the....

flowers

The enlarged portion which contains the ovules is called the....

ovary

What is the female sporophyte generation in angiosperms?

ovules

flowers that contain both pistil and stamen are...

perfect

What is the sporophyte generation in the conifers?

pine tree

The female reproductive organ in angiosperms is called the...

pistil or carpal

1 sperm nucleus joins with 2 ___ ____ =endosperm nucleus

polar nuclei

The microspore contain the....

pollen (sperm)

What is artificial pollination?

pollen deliberately being transferred by human to allow the breeding of plants with specific, desired characteristics

What are is the male gametophyte generation of angiosperms?

pollen grains

What do the spores of angiosperms develop into?

pollen grains

When the pollen grain lands on a stigma, a ____ _____ begins to grow

pollen tube

The male reproductive organ is angiosperms is called the...

stamen

The tip of the pistil that is sticky is called the....

stigma

The thin support portion of the pistil is called the...

style

What is the female gametophyte of moss?

archegonium

What are all the petal together?

corolla

What is the chromosome # of the endosperm?

3n

When does double fertilization occur?

after the pollen enter the embryo sac

The thicker pouch at the top of the stamen is called the....

anther

What is the male sporophyte generation of angiosperms?

anther

Which part of the anther produces the pollen?

anther

What is the male gametophyte part of moss?

antheridium

In both mosses and ferns, eggs are produced in an organ called...

archegonium

What are all the sepal together?

calyx

Flowers that contain calyx, corolla, stamens and pistil are...

complete

A flower with a calyx, corolla, stamens, and pistil is called ______, and is also called ____ because it has both female and male parts

complete; perfect

The microspore and megaspores of the conifers develop inside the fall and female...

cones

What is the function of the tube nucleus?

controls the activities of the pollen tube

What is the dominant generation of moss?

gametophyte

The haploid generation in a plant's life cycle is called the_________

gametophyte generation

pine tree are a type of...

gymnosperm

There are ____ micro and megaspores created in the cones

many

What do angiosperms do to prevent self-pollination?

mature eggs and sperm at different times and pistil is really tall, high above stamen

What is the female cone called?

megasporangium

What is the female gametophyte generation in conifers?

megaspores

What process does the sporophyte generation use?

meiosis

What occurs within the anther of each stamen?

meiosis makes spores

What occurs inside the capsules?

meiosis occurs to create spores

What occurs in the sori?

meiosis occurs to make spores

What occurs inside the scales of the cones?

meiosis occurs to produce the spores

What is the opening in the ovule called?

micropyle

What is the male cone called?

microsporangium

What is the male gametophyte generation in conifers?

microspores

What process does the gametophyte generation use?

mitosis

What contains the antheridium and archegonium in a fern?

prothallus

What is the heart-shaped structure that makes up the gametophyte generation in ferns called?

prothallus

What is the base where the flower sits called?

receptacle

Once fertilized, the ovule becomes the _____ and the ovary becomes the _____.

seed; fruit

In conifers the embryo develops in to a ____ which is ....

seed; released into the air and if conditions are right will germinate in the ground with potential to become a new pine tree

What are the green outer leaves on a power called?

sepal

What is the function of the endosperm?

serve as food for the developing embryo

The generative nucleus divides into 2 ____ ____

sperm nuclei

Inside the ovary, which is the female sporophyte generation, meiosis occurs to produce four haploid _____. Only one remains and becomes the female gametophyte which is called the ____ ____.

spores; embryo sac

Inside the anther, which is the male sporophyte generation, meiosis occurs to produce four haploid ____. Each spore becomes a ____ _____, which is the male gametophyte. It contains 2 haploid nuclei, which we call the ____ nucleus and the ______ nucleus.

spores; sperm nuclei; tube; generative

The stalk tipped with a pore-bearing capsule of a moss plant is the....

sporophyte

What is the dominant generation in a fern plant?

sporophyte

Which generation is dominant in a gymnosperm life cycle?

sporophyte

The diploid generation in a plant's life cycle is called the ________

sporophyte generation

The parts of the sporophyte of mass are....

stalks and capsules

Why don't mosses grow very tall?

they lack a vascular system

There are two nuclei inside the pollen tube: the ____ nucleus and the _____ nucleus

tube; generative

ferns are a type of...

vascular seedless plant

What carries the pollen to the inside of the female cones?

wind


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