Plant Secretory Pathway Flashcards
(24 cards)
Plant Secretory system consists of a network of membraneous [blank] including….(3 orgnaelle types)
organelles, ER, golgi, vacuoles
The secretory pathway is essential for [blank] and [blank] modifications and [blank] within plant cells.
protein, carbohydrate, transport
ER has 3 domains
nuclear envelope, rough ER, smooth ER
The [blank] is key for synthesizing proteins and transporting them to the Golgi for further processing.
ER
The Golgi apparatus is not a single large body but rather a [blank]
collection of moving Golgi stacks that interact closely with the ER.
Key functions of golgi (2)
-protein modification (like glycosylation) and
-complex carbohydrate synthesis (such as pectin and hemicellulose), essential for cell wall formation.
pectin and hemicellulose are essential for
cell wall formation
Golgi body facilitates anterograde vesicle movement in what direction (backwards)
ER to golgi
retrograde vesicle movement for golgi (forwards)
golgi to ER
In terms of vesicle transport, it Involves coated vesicles like [blank] for (anterograde, backwards) and [blank] for (retrograde, forward) and [blank]-coated vesicles targeting vacuoles or the plasma membrane.
COPII, COPI, clarithin
How does tightness between ER and golgi help?
gives efficient vesicle trafficking and protein processing
3 compounds essential for wall formation
cellulose synthase, pectin, hemi cellulose
what do clarithin coated vesicles do
target vacuoles or other cellular compartments
plant cells have 2 types of vacuoles
storage and lytic vacuoles
What do Storage Vacuoles do
store protein and other materials in seed endosperm cells
What do lytic vacuoles do
- Involved in degradation
- turnover of cell components.
- Maintain turgor pressure
- regulate cell pH.
golgi are assoicated with the ER and move on which filaments
actin
what type of golig do plants and animals have
plants - lots of moving golgi
animals - one large complex
storage proteins in rice
prolamine and glutelin
which rice storage protein forms dense inclusion bodies within ER lumen
prolamine
glutelin protein, how is it sorted
sorted through golgi, directed to storage vacuoles
prolamine and glutelin are both synthesized on [blank] but each found where
rough ER, er, storage vacuole
Prolamine mRNAs are localized to the [blank] of the ER that surrounds the
[blank] protein body
surface, prolamine
endosperm cells are [blank] at maturity and aid [blank] in growth
dead, seedling
