Plant Structure Flashcards
Plants are characterized as …
eukaryotes
Membrane-enclosed organelles include:
Nucleus, chloroplasts [plastids], mitochondria, vacuoles, endoplasmic reticulum [ER], Gogli apparatus, peroxisomes
Biological membranes are composed of
A phospholipid bilayer with proteins (fluid)
Charged and Polar molecules diffuse ___ ___ across biological membranes
more slowly
Phospholipid bilayers have ____ core and ____ surfaces
Hydrophobic ; hydrophilic
DNA of plant cells is located where?
Nucleus, Plastids (chloroplasts), and mitochondria
Photosynthetic tissues tend to have _____ per cell
Dozens of chloroplasts
The cell wall is located…
outside of the plasma membrane
Mature plant cells tend to have a large central vacuole, it can get how big?
up to 70%
The membrane that surrounds the vacuole is called?
The tonoplast
the vacuole plays roles in:
water relations, storage area for ions, the location of anthocyanins
