What does a seed contain? Egg? Sperm? Explain.
two multicellular stages (game-producing gametophyte and spore producing sporophyte)
what does the phrase "alternation of generation" have to do with plants
haploid spores by meiosis
a sporophyte produces ___ which are haploid / diploid
which is larger the gametophyte or the sporophyte in plants?
gametes by mitosis
The gametophyte produces ___ by the process of ___.
spores by meiosis
The sporophyte produces ___ by the process of ___.
pollinate (fertilize egg to form zygote)
Give the function of pollen grains.
What is inside of a pollen grain?
The pollen grain is a part of the ___ generation of a plain.
The pollen grain must land on the ___ of a flower in order for fertilization to occur.
The pollen grain must grow a ___ once it is on the stigma in order for the sperm to get to the egg.
What does the plant embryo "eat" while it is in the seed before it germinates?
Stem (produce leaves, branches and reproductive structures)
Leaves (flattened structures often specialized for photosynthesis)
Roots (provide anchorage in soil, foster efficient uptake of water and minerals)
List the three types of organs in plants and give the function of each.
___ produces the cotyledons
___ provides food for the growing plant embryo before it has leaves for photosynthesis.
The embryonic root of a plant is called the ___ and the embryonic stem is called the ___.
___ - is the tissue in plants that contains stem cells and can give rise to different tissue types.
stem and root tips (It is found in in the tip of stems and root and is used by the plant for growth.)
Where is meristematic tissue found in plants? Why would it be located there and no other places?
___ hold seeds and function in seed dispersal.
disperse (Animals eat the fruit and as they move around the seeds are dispersed farther than the plant could have reached and thus the species area of growth widens.)
What good are fruits to the plants that produce them?
protection (Enclosed flower tissue is used to protect male and female gametophytes)
What is the function of a flower?
i. Two seed leaves (beans)
ii. Leaves and flowers have petals numbering 4, 5 (or multiple of those numbers)
iii. Parallel leaf venation
iv. One pore split (pollen)
v. Scattered (stem vascular bundles)
i. One seed leaf (corn)
ii. Flowers and leaves numbering in multiples of 3
iii. Netted or branched leaf venation
iv. Three pores splits (pollen)
v. Arranged in ring (stem vascular bundles)
Characterize monocots and eudicots.
___ - plants that die after producing seeds during their first year of life
___ - plants that do not reproduce the first year but may the following year
___ - plants that live for more than 2 years, often producing seed each year after maturity
girth (stems and roots by producing secondary tissue)
Secondary growth increases the ___ of the plant.
___ produces the vascular tissue in plants
___ produces the ground tissue in plants.
protoderm, procambium, ground meristem
What three layers do the shoot and root apical meristem produce?
___ tissue is found in the cortex of the shoot.
___ cell store starch in organelles called ___.
Parenchyma (stores starch in plastids)
Collenchyma (tissue found in stem of plans)
Sclerenchyma (rigid tissue found in stems)
Vascular bodies (elongated clusters of vascular tissue)
Use your textbook and distinguish between collenchyma, sclerenchyma, and parenchyma tissues.
Primary vascular tissue is made up of what two types of tissues and arranged in vascular bundles?