lab 1 Flashcards
Cell
smallest structural and functional unit of organism
Photosynthesis
solar energy converted to organic matter
where does photosynthesis occur?
chloroplasts
Parenchyma
-cells are thin walled and living at maturity
what are Parenchyma called when they contain chloroplasts?
Chlorenchyma
Collenchyma
uneven thickened walls and are living
Scherenchyma
cells are dead at maturity and have thick cell walls
what are the two types of Sclerenchyma?
fibers and schlereids
Middle Lamella
Cementing layer which glues adjacent cells together
in Schlerids, what is the cavity where cytoplasm is
Lumen
Fibers
Thick walled cells that provide support for the plant elongated narrow cells
what is cell wall inlaid with
plasmalemma
what carbohydrates does cell wall contain
what is their function
cellulose, pectin, and lignin
structural support
what is the function of lipids in plasma membrane
regulat4e chemical movement
cytoplasm
fluid matrix in cell membrane
nucleus
contains DNA
Central vacuole
fluid filled organelles that provide structure and store nutrients and water
anthocyanin
pigment found in vacuole
cytoplasmic streaming
transfer of materials in and out of cells
function of roots
anchor plants, obtain water and nutrients, store energy
function shoots
search for sunligt, conduct water and nutrient, conduct carbohydrates
Monocots
one seed leaf
Dicot
two seed leaf
crowns
shoots