Lab 4 & 5: Plants Flashcards
Tissue Types
vascular, ground, meristematic, dermal
Vascular Tissue
conducts water, nutrients, etc. throughout the plant
Ground Tissue
physical support, secretion, photosynthesis, storage
Meristematic Tissue
totipotent regions where plant growth occurs
Dermal Tissue
epidermis and associated cells that form the outer covering of plants
The xylem is made up of
vessels and tracheids
What does the xylem do?
moves water and nutrients up from the soil
What does the ploem do?
brings sugars down
Parts of the Vascular Tissue
xylem and ploem
Parts of the Ground Tissue
Collenchyma/Sclerenchyma & parenchyma
What does the Collenchyma/Sclerenchyma do?
support
What does the parenchyma do?
storage
Parts of the Meristematic Tissue
totipotent, apical, lateral
What does the totipotent do?
everything
What do the Apical meristems do?
involved in elongation of plant
What do the lateral meristems do?
make plant thicker
Apical meristems are the site of…
active mitosis
Parts of the Dermal Tissue
guard cells & waxy cuticle
What do the guard cells do?
open and close pores for CO2
What does the waxy cuticle do?
keeps plant from losing water
endosperm =
2 polar nuclei + sperm
Male Gametophyte
pollen grain, 3 nuclei (2 sperm)
Female Gametophyte
8 nuclei in 7 cells
