Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/32

Click to flip

32 Cards in this Set

  • Front
  • Back
In angiosperms, flowers containing both male and female parts are referred to as _____ and are monoecious
perfect
Flowers containing either male or female parts are referred to as _____ and are dioecious
imperfect
_____ occurs when male and female gametes are exchanged between individuals of the same species
outcrossing
____ occurs when a sperm and an egg from the same individual unite to form a zygote
self-fertilization
Meiosis and spore production occur inside structures called ____
sporangia
Mature gametophytes develop reproductive structures known as _____ and inside of it, haploid gametes are produced by mitosis
gametangia
______ does not involve meiosis or fertilization, and it results in the production of clones-- offspring that are genetically identical to the parent plant
asexual reproduction
_____ are horizontal stems that connect many of the individuals in a grass sod
rhizomes
a plant may propagate itself via modified stems called ____ that grow under the surface of the soil
corms
______, formed from meristematic tissue in the margins of its leaves that drop off the parent plant and take root in the soil below to grow into independent individuals
plantlets
_____ are leaflike structures that make up the outermost part of the flower that are arranged in a whorl around the receptacle- the site where floral organs attach to the stem
sepals
The _____ produces sugar-rich fluid called nectar, which is harvested by many animals that visist the plant
nectary
The entire group of petals is called a _____
corolla
The male reproductive structure of angiosperms is the stamen, which consists of a slender stalk called the _____ and the pollen-producing organs called _____.
filament; anthers
What are the three regions and their functions in the female reproductive structure, the carpel
stigma-moist tip that recieves pollen
style- slender stalk
ovary- base of the carpel were eggs are made
meiosis and production of the female gametophyte take place in the ____, located in the ovary
ovule
The diploid cell called the _____ is found inside a structure called the ______ within the ovule
megasporocyte; megasporangium
four haploid cells called _____ result from meiosis, but three of them degenerate
megaspores
the surviving megaspore divides by mitosis to form _____
eight nuclei
the eight nuclei segregate to form seven cells and the central cell called the _____
polar nuclei
Inside the anther, structures known as ______ contain diploid cells called _____ which undergo meiosis
microsporangia; microsporocytes
Each microspore divides once by meiosis, forming what two things
generative cell enclosed in a tube cell
the strucute composed of the microspore wall and the immature male gametophyte is termed a _____
pollen grain
Pollen grains are tiny gametophytes that do not contain sperm. the haploid _____ will produce sperm via mitosis
generative cell
_____ is the transfer of pollen grains form an anther to a stigma
pollination
______ occurs when pollen is carried from the anther of one individual to the stigma of a different individual
cross-pollination
When the pollen grain germinates on the stigma, it produces a _____ that grows down the length of the style
pollen tube
The triploid cell resulting from the second fertilization begins a series of mitotic divisions that form tissue called ____ which stores nutrients
endosperm
_____ is the process by which a single-celled zygote becomes a multicellular embryo
embryogenesis
when a zygote divides it produces two daughter cells called?
the basal cell and the terminal cell
______ are the seed leaves that take up the nutrients in the endosperm and store them
cotyledons
The ____ is the intial stem, and the _____ is the first root structure
hypocotyl; radicle