Leaves and flowers Flashcards
What is the function of leaves?
The function of the leaves is do photosynthesis.
How does glucose travel?
Glucose travels in the form of sucrose.
What happens when sucrose gets to its final destination?
It is stored in starch.
What cells do photosynthesis not occur in?
epidermal cells
What is the function of the cuticle?
not to let water out
What happens the palisade mesophyll?
photosynthesis takes place there
What is the main job of the sponge mesophyll?
storing starch
What does the vein contain?
The vein contains the xylem and phloem
What is the function of the vein?
allows food and water to travel
What are the secondary functions of the vein?
provides the support and structure for the leaves
What is the function of the stoma?
The stoma doorway for carbon dioxide.
What does the photosynthesis require?
It requires carbon dioxide.
How can the water be lost?
Water can be lost thru the stoma.
What is transpiration?
unavoidable lose thru stoma
What are guard cells?
regulates the opening of the stoma
What do guard cells do?
open and close the hole based on whether the plant needs water or less water
In 75 degree weather are the guard cells closed or not closed?
Mostly closed
What are leaves on monocot diagrams?
parallel veins on the leaves
What kind of veins of dicots have?
it has net like leaves
What are flowers?
modified stems wth special leaves
What are receptacles?
points of attachments from stems to the rest of the floral parts
What is a sepal?
protects the flower in the bud stage
Why do bees go to flowers?
to get nectar
What happens when the bees swallow the nectar?
It turns into honey
What filament?
gets sacks up higher in the air
What is the job stamen?
The job of the state is made pollen.
What is the stigma?
produces sticky liquid to trap the pollen
What is the style?
gets the stigma higher in the air
What is the ovary?
The key to sexual reproduction
What is the ovule?
the ovary could have multiple of ovary
What are most flowers?
most flowers are monoecious
Can some flowers be dioecious?
yes
What does monoecious mean?
One flower can have two genders
What does dioecious mean?
Each flower has one gender.
What does the microspore mother cell do?
The microspore mother cell does asexual reproduction in the ovary
What is the microphyte?
The doorway to the ovuale
What is pollination?
The transfer from the pollen from the stamen to the stigma
What is self pollination?
where the pollen from the stamen attaches to the stigma of the same flower
What are the two ways that pollen travel?
Thru wind and animals
What is the problem with pollen traveling by wind?
It is trial and error because there is more pollen than flowers. ex: wheat, barley
What animals pollinate?
Bees
What is the end result of pollination?
pollen on the stigma
What happens when the pollen sticks to the stigma?
The flower is ready to start sexual reproduction
What is the function of the tube nucleus?
The tube nucleus controls the growth of the tube
What does the tube nucleus release?
two sperm cells
What polar nucleus?
Two haploid nuclei in the centre of the embryo sac of flowering plants.
How many sperms does double fertilization?
two sperms
What is double fertilization?
Double fertilization is a complex fertilization mechanism of flowering plants (angiosperms). This process involves the joining of a female gametophyte (megagametophyte, also called the embryo sac) with two male gametes (sperm).
What are the two types of flowers?
monocots and dicots
What do monocot flowers have?
It has three petals or multiples of three petals.
What do dicot flowers have?
it has four or five petals or multiple of four or five.
What is an example monocot?
tulip or lily
What is an example of a dicot?
Rose
How many parts are there in the seed?
there are three parts to the seed
What are the three parts to the seed?
The seed coat, embryo, endosperm
What is fruit?
mature pistil containing seeds and other florals parts
What are the types of fruits?
fleshy, dry,
What are the characteristics of fleshy fruit?
moist and juicy
What is the pome?
0 percent its pistil is edible
What is a drupe?
fifty percent of the pistil is edible
What is berry?
100 percent of the berry is edible.
What is an example of a drupe?
peach
What is an example of a pome?
apple
What is example of a berry?
tomato
What are dehiscent fruits?
plants that have seams ex: peas
What are indehiscent fruits?
seeds ex: dandelions
What are the three ways foods disperse?
mechanical mechanism, animals, water, wind
What happens during mechanical mechanism?
It opens quickly and violently through the air, and literally shoots the seeds thru the air
How do animals disperse seeds?
they poop the seeds out or it gets stuck in their hair,
