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Biology 2
BSC 1011L Exercises 30-32, 36-40
85
Biology
Undergraduate 2
07/01/2011

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Term
Gymnosperms are
Definition
exposed seeds borne on scale like structures called cones
Term
Gymnosperms are ______ and produce ___ types of spores.
Definition
Heterosporus, 2
Term
Gymnosperms produce
Definition
Microspores and Megaspores
Term
Microspores are
Definition
male cones and form males gametophytes
Term
Megaspores are
Definition
female cones and form female gametophytes
Term
Gametophytes of Gymnosperms are ________ and completely dependent on the large free living __________.
Definition
microscopic, sporophyte
Term
Gymnosperms were the first plants to evolve that did not need ____ ______ to transform ______ to _____.
Definition
free water, sperm to egg
Term
Gymnosperms include 4 Phyla
Definition
Cycadophyta
Ginkgophyta
Coniferophyta
Gnetophyta
Term
Cycadophyta has _____ species
Definition
200
Term
Cycads resemble ______
Definition
palms
Term
Sperms of cycads are _______.
Definition
Flagellated
Term
Example of of Cycadophyta
Definition
Zamia
Term
There is only 1 species of Ginkgophyta
Definition
True
Term
What does dioecious mean?
Definition
having both male and female reproductive organs individually on 1 species
Term
All 4 Phyla of Gymnosperms are __________.
Definition
Heterosporous
Term
Coniferophyta
Definition
also known as conifers
Term
Sporophylls bear spores in ______.
Definition
Conifers
Term
Sporophylls of male cones are called vice versa.....
Definition
microsporophylls, megasporophyll
Term
Conifers include
Definition
spruce, cedar, fir
Term
Genus Pinus belongs to the phyla
Definition
Coniferophyta
Term
On the surface of Megasporophylls are spore producing megasporangia on its surface
Definition
True and vice versa
Term
male cones usually form at the .....
Female cones are usually at the ......
Definition
Bottom branches
Top of the branches
Term
Microsporophyll
Definition
Term
Each scale of a male cone is called
Definition
Microsporophyll
Term
The Microsporophyll bears __________ that produces Mother cells that produce _______
Definition
Microsporangia, microspores
Term
Each ovuliferous scale of the female cone bears ___ ____________, which produces, ______________.
Definition
2 Megasporangia, megaspores.
Term
Integuments form the ..........
Definition
seed coat
Term
The transfer of pollen to a receptive surface
Definition
Pollination
Term
Seeds mature up to __ months after fertilization.
Definition
6
Term
Seeds plants are dominant in today's environment because it has a small sporophyte that lays dormant until conditions are favorable.
Definition
True
Term
Gnetophyta has __ species
Definition
71
Term
Examples of Gnetophyta
Definition
Gnetum,
Welwitschia plants ( Namib Desert of South Africa),
Ephedra (dietary supplement)
Term
Lab Exercise 31
Definition
Survey of the Plant Kingdom, Angiosperms
Term
Flowering plants belong to the Phylum
Definition
Anthophyta AKA Angiosperms
Term
Angiosperms are the most abundant, diverse, and widespread of all land plants
Definition
True
Term
Angiosperms are ____________.
Definition
Heterosporus
Term
Microgametophyte is the
Definition
Pollen
Term
Megagametophyte is the
Definition
embryo sac
Term
Vegetative structures of angiosperms
Definition
roots, stems, leaves
Term
Reproductive Structures of angiosperms
Definition
flowers, fruits, seeds
Term
Flower stalk
Definition
Peduncle
Term
bears the floral organs, flower base
Definition
Receptacle
Term
Lower most or outermost whorls, leaf like protector, AKA Calyx
Definition
Sepals
Term
whorls of structures located inside and usually above the sepals, may be pigmented or non pigmented
Definition
Petals
Term
Male portion of the flower, includes the stamen
Definition
Androecium
Term
Male part of flower, includes anther and filament
Definition
Stamen
Term
Inside the anther are ______ _______. The pollen grains are the __________________ the male ___________.
Definition
Pollen grains
Microgametophytes
Gametes
Term
Female portion of flower
Definition
Gynoecium
Term
Carpel includes 4 parts
Definition
Stigma
Style
Ovary
Ovule
Term
The ________ contains ________ that contain the _________________.
Definition
Ovary
Ovules
Megagametophyte
Term
The ________ contains ________ that contain the _________________.
Definition
Ovary
Ovules
Megagametophyte
Term
The ____________ is called the ______ ____ and contains female _______.
Definition
Megagametophyte
Embryo sac
gametes
Term
Similarly shaped parts of a flower that radiate from the center and are ________ ___________.
Definition
Regular flowers
Radially symmetrical
Term
One or more parts of the whorl are different from each other and are ________ ___________.
Definition
Irregular flowers
bilaterally symmetrical
Term
Small spindle shaped and off center
Definition
Generative nucleus of pollen gain
Term
Larger and centered
Definition
Tube nucleus of pollen grain
Term
_____________ is used to enhance the visibility of the nuclei.
Definition
Acetocarmine
Term
Flowers life cycle involve ___________ of ____________
Definition
Alternation of generations
Term
Production of spores
Definition
Sporogenesis
Term
Flowering plants produce 2 types of spores
Definition
Megaspore and Microspore
Term
Production of gametes by the gametophytes
Definition
Gametogenesis
Term
Production of Microspores within the microsporangia of a flowers anther
Definition
Microsporogenesis
Term
Microspores grow and mature into ______________.
Definition
Microgametophytes = mature pollen grains
Term
A pollen grain will __________ when it lands on a flower ________.
Definition
Germinate
Stigma
Term
The Generative nucleus replicates into 2 sperm nuclei.1 to fertilize the egg in the ovary and 1 to fertilize the polar nuclei in the ovary.
Definition
Double fertilization of the Generative cell of the pollen grain
Term
Production of megaspores
Definition
Megasporogenesis
Term
When Megaspores develop into Megagametophytes
Definition
Megagametogenesis
Term
Megagametophyte and its tissue =
Definition
Ovule
Term
The ovule cotians 2 covering scalled
Definition
Integuments = seed coverings
Term
mature Megagametophyte =
Definition
Embryo sac
Term
Angiosperm reproduction depends on
Definition
pollination
Term
A mature ovule, includes seed coat, food supply and embryo.
Definition
Seed
Term
Endosperm is
Definition
absorbed by Embryo
Term
Where embryo of seed stores nurients, AKA seed leaves
Definition
Cotyledons
Term
Having 1 Cotyledon
Definition
Monocot
Term
Seed with 2 Cotyledons or seed leaves
Definition
Dicot
Term
Parts of a bean seed
Definition
Micropyle
Hilum
Cotyledon
Embryo w/ young root and shoot
Term
Micropyle
Hilum
Cotyledon
Embryo w/ young root and shoot
Definition
- small opening
-inner most area where ovule eas attached to ovary
- food for embryo
-develops into the new sporophyte
Term
Parts of corn seed
Scutellum-
Definition
helps absorb endosperm
Term
mature ripened ovary
Definition
Fruit
Term
Parts of a fruit
Definition
Pericarp- outer wall composed of
exocarp
mesocarp
endocarp
Term
Simple fruit
Definition
from 1 ovary- Fleshy
Term
Complex fruits
Definition
from more than 1 ovary
Term
Dry fruits- legumes, beans peanuts
Definition
split open at maturity
Term
Tomato
Pea
Strawberry
Apple
Definition
berry fruit
legume fruit (Dry)
Aggregate fruit
Pome fruit
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