Plant cells and plant tissues 1 Flashcards
What cellular structures are specific to plant cells?
Chloroplasts, primary wall, middle lamella, plasmodesmata,
Where does the secondary wall develop?
Between the primary wall and the plasma membrane
What is the middle lamella?
A structure that i between the primary walls of adjacent plant cells?
Order of plant walls (outwards)?
Plasma membrane–> secondary wall–> primary wall
Role of plasmodesmata?
Connects the cytosol of adjacent cells
How similar is a plant nucleus to an animal one?
Very
Why do plants have a higher concentration of sterols and cholesterol in their plasma membranes?
They cant move to counteract large environmental changes, so instead need to change the fluidity of their plasma membrane
What is used to move plant organelles throughout the cell?
actin filaments
Role of oil bodies?
housing triacylglycerides
Where do oil bodies come from?
They bud off the ER
What molecules make up the primary cell wall?
Cellulose
What kinds of cellulose makes up the primary cell wall?
Cellulose microfibrils and hemicellulose
What non-cellulose molecule is present in primary cell walls?
Pectin
What is the lifestyle of plant organisms?
Seccile
