Chapter 6 Flashcards
Parenchyma
thin primary walls, metabolically active, alive, water storage, turgid, inexpensive
Chlorenchyma
photosynthetic, thin walls, maximize light and CO2 absorption
Glandular Cells
secrete nectar, fragrances, mucilage, resins, oils
Transfer Cells
short-distance transport, large plasma membrane with molecular pumps
Sieve Elements
Long-distance sugar transport
Collenchyma
primary wall that is thin/thick, plasticity and flexible support, least common, beneath the epidermis, supporting vascular bundles
Sclerenchyma
primary wall and a thick secondary wall, elastic, strong, dead, conductive and mechanical, tracheids, vessels
Conductive
treachery elements (vessel elements)
Mechanical
fibers, sclereids
Tracheids
typically shorter and narrower than vessels, water only passes through small pits
Vessel Elements
walls between connecting vessel elements, perforation, facilitating easier water movement between vessel elements
Fibers
long and flexible, wood, primary growth vascular bundles
Sclereids
short, isodiametric, inflexible, brittle, seed protection, “pears”
Cuticle
outer walls are coated with waterproof cutting, layer build up
Types of Secondary Walls
Annular, helical, scalariform, reticulate, pitted
Plant Management
Ask seller for advice
Drain Holes
Direction of Window
Repot when growth has slowed, plant tips over easily, dries out quickly
Protoplasm
all but the cell wall and plasma membrane (most inclusive)
Cytoplasm
includes organelles except nucleus and vacuole
Cytosol
just the fluid (most limited)
Cell Wall
cellulose microfibrils, hemicelluloses, middle lamella, pectins
Large Central Vacuole
Tonoplast, storage, recycling, waste, turgor
Dictyosome
alternative Golgi, smaller, modify proteins, mucilage secreting cells
Plasmodesmata
holes in cell wall connecting plasma membrane
Apoplast
space between cells
