Lecture 8: Cell Walls & Their Role in Regulating Plant Cell Shape
Studied by 0 people
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/19
Earn XP
Description and Tags
These flashcards cover key concepts regarding cell walls and their role in plant cell structure and function.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
20 Terms
The annual production of plant cell walls is estimated to be __ billion tons/year.
150–170
Cellulose is a __ that forms the major component of plant cell walls.
glucose polymer
Extensins are proteins involved in __ of the cell wall, which increases its strength.
cross-linking
The primary plant cell wall provides __ strength to plant cells.
structural
The __ is a large, membrane-bound organelle in plant cells that helps regulate osmotic pressure.
vacuole
Cell walls prevent excessive __ uptake in plant cells.
water
Pectin and hemicellulose are transported to the cell surface by __.
exocytosis
Plasmodesmata serve as intercellular connections that enable __ communication between plant cells.
cell-to-cell
The secondary cell wall is __ and stronger than the primary cell wall.
thicker
The process of water movement into a cell by osmosis occurs from a high concentration to a low concentration.
water; water
Lignin is a complex polymer that confers __ and rigidity to the secondary cell wall.
strength
Microfibrils in the secondary cell wall have different __ that contribute to its strength.
orientations
The protoplast pushes against the cell wall to maintain __.
plant structure
Wilting occurs when the protoplast is not pushing against the __.
cell wall
The __ layer is composed of pectin and cellulose and connects adjacent plant cells.
middle lamella
Cellulose-producing rosettes are located in the __ membrane.
plasma
The cell wall influences cell __, providing support and preventing over-expansion.
morphology
In plant cells, turgor pressure is created as the protoplast expands and pushes against the __.
cell wall
The primary plant cell wall synthesis involves three coordinated steps: cellulose, hemicellulose and pectin synthesis, and __ of extensins.
exocytosis
Osmosis is the diffusion of water across a __ permeable membrane.
selectively
Note 
Flashcards (63)