Plant Biology

Organic matter

Organic matter

Organic matter, produced in the leaves, must be transported to the consuming sources- via the phloem.

Salts

Salts and water are absorbed by the roots and transported into the plant by the xylem.

Pollination

Pollination: transport of the pollen grain from one plant to the pistil of another.

fertilization

After ________, the ovary becomes a fruit, and the ovules become seeds.

Gametes

Gametes depend on water for transport.

Double fertilization occurs

________ (forming the embryo and the endosperm)

Spores

Spores are carried by the wind and originate from the prothallium (gametophyte), Gametes depend on water to be transported.

availability

The stomas open when there is light and water ________.

sporophyte

The plant is the ________, and the strobiles produce microspores (forms the pollen grain) or megaspores (forms the embryo sac)

stamens

In the ________, there is the pollen sac, where the spores are formed by meiosis, generating pollen grains.

phloem

The phloem is an important plant conducting tissue.

endosperm

The endosperm (3n) is the nutritional reserve of the embryo.

flow

The removal of a ring- in the bark of the tree- interrupts the ________ of the phloem and causes the death of the cells due to lack of nutrients.

Root pressure

Root pressure pushes the sap upward.

Transpiration

Transpiration occurs in any part of the plant that is above ground.

spores

They are the first spermatophytes- with leaves specialized in producing ________ (sporophylls, gathered in strobiles)

fertilization

After ________, the ovule becomes a seed (embryo + nutritive tissue + tegument)

Pollination

transport of the pollen grain from one plant to the pistil of another

The removal of a ring -in the bark of the tree

interrupts the flow of the phloem and causes the death of the cells due to lack of nutrients