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Questions and Answers
What is the main component of the cell wall in plants?
What is the main component of the cell wall in plants?
- Chitin
- Cellulose (correct)
- Lignin
- Peptidoglycan
Cell walls are present in animal cells.
Cell walls are present in animal cells.
False (B)
What is the function of the cell wall?
What is the function of the cell wall?
protection and support
The cell wall is a rigid, non-living layer that surrounds the cell ______.
The cell wall is a rigid, non-living layer that surrounds the cell ______.
Match the following layers with their descriptions:
Match the following layers with their descriptions:
Which of the following describes the primary function of plasmodesmata in plant cells?
Which of the following describes the primary function of plasmodesmata in plant cells?
The cell membrane is freely permeable to all molecules, ensuring constant exchange with the environment.
The cell membrane is freely permeable to all molecules, ensuring constant exchange with the environment.
What is the structural framework of the plasma membrane described as?
What is the structural framework of the plasma membrane described as?
The plasma membrane physically separates the intracellular space from the ______ environment.
The plasma membrane physically separates the intracellular space from the ______ environment.
Match the following components of the cell membrane with their properties:
Match the following components of the cell membrane with their properties:
In the fluid mosaic model, what describes the arrangement of phospholipid molecules within the cell membrane?
In the fluid mosaic model, what describes the arrangement of phospholipid molecules within the cell membrane?
The cell wall primarily regulates transport of substances in and out of the cell.
The cell wall primarily regulates transport of substances in and out of the cell.
Name two functions of a plant cell wall.
Name two functions of a plant cell wall.
The plasmodesmata connect neighboring cells, enabling communication and transport of ______ between them.
The plasmodesmata connect neighboring cells, enabling communication and transport of ______ between them.
Match the cell structures with their composition:
Match the cell structures with their composition:
What is the function of the middle lamella?
What is the function of the middle lamella?
The secondary cell wall is formed outside the primary cell wall.
The secondary cell wall is formed outside the primary cell wall.
What is the purpose of the hydrophobic tails in the phospholipid bilayer?
What is the purpose of the hydrophobic tails in the phospholipid bilayer?
The cell membrane surrounds and protects the ______.
The cell membrane surrounds and protects the ______.
Match the terms:
Match the terms:
Which component of the cell wall provides it with great strength and rigidity?
Which component of the cell wall provides it with great strength and rigidity?
The arrangement of cell walls are identical between plants, bacteria and fungi.
The arrangement of cell walls are identical between plants, bacteria and fungi.
Name the 3 layers found in plant cell walls.
Name the 3 layers found in plant cell walls.
Plasmodesmata are openings in the cell ______.
Plasmodesmata are openings in the cell ______.
Match the type of cell to whether or not it has a cell wall:
Match the type of cell to whether or not it has a cell wall:
What part of the cell membrane controls the movement of substances in and out of the cell?
What part of the cell membrane controls the movement of substances in and out of the cell?
The cell wall is the structure that separates the cell from the outside environment.
The cell wall is the structure that separates the cell from the outside environment.
Plant cell walls are mostly comprised of what biological polymer?
Plant cell walls are mostly comprised of what biological polymer?
Cellulose consists of 3 layers that support the ______
Cellulose consists of 3 layers that support the ______
Match the polarity with whether it is attracted to, or repelled by water:
Match the polarity with whether it is attracted to, or repelled by water:
Which function is not done by the cell wall?
Which function is not done by the cell wall?
The cell wall prevents water and minerals from passing through to deliver nurients.
The cell wall prevents water and minerals from passing through to deliver nurients.
The plasma membrane is also known as...
The plasma membrane is also known as...
Cells communicate with each other via ______
Cells communicate with each other via ______
Match the description to the type of cell (Only using information in the text.)
Match the description to the type of cell (Only using information in the text.)
Which component of the cell wall best protects the cell?
Which component of the cell wall best protects the cell?
A cell membrane and a cell wall are the same.
A cell membrane and a cell wall are the same.
What substance cannot pass through the cell membrane?
What substance cannot pass through the cell membrane?
Plants give the plant body a ______ shape with supports.
Plants give the plant body a ______ shape with supports.
Flashcards
Cell Wall
Cell Wall
A rigid, non-living layer outside the cell membrane that surrounds the cell.
Cellulose in Plant Cell Walls
Cellulose in Plant Cell Walls
In plants, the structural component of the cell wall is cellulose.
Cell Wall Layers Function
Cell Wall Layers Function
The cell wall layers that consist of 3 layers that help support the plant
Cell Wall Layers Contents
Cell Wall Layers Contents
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Functions of a Cell Wall
Functions of a Cell Wall
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Permeability of Cell Wall
Permeability of Cell Wall
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Plasmodesmata Function
Plasmodesmata Function
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Cell Membrane
Cell Membrane
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Cell Membrane and Cytoplasm
Cell Membrane and Cytoplasm
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Fluid Mosaic Model
Fluid Mosaic Model
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Hydrophilic Head
Hydrophilic Head
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Hydrophobic Tail
Hydrophobic Tail
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Phospholipid Arrangement
Phospholipid Arrangement
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Study Notes
- These are study notes about the cell wall and the cell membrane
The Cell Wall
- It’s a rigid, non-living layer surrounding the cell membrane and the cell itself.
- Cell walls are present in plants, bacteria, and fungi.
- In plants, the wall is composed of cellulose.
- The cell wall has 3 layers that help support the plant
- These 3 layers include middle lamella, primary cell wall, and secondary cell wall
Functions of a Cell Wall
- Protection and support, protecting the inner parts of the plant cell.
- Gives the plant body a regular shape and supports it.
- Permeability, allowing water and mineralsalts to pass through thus distributing nutrients throughout the cell.
- Plasmodesmata facilitates the connection of neighboring cells enabling communication and transport of molecules between them.
The Cell Membrane
- It is also called the Plasma Membrane
- Separates the intracellular space (inside the cell) from the extracellular environment (outside the cell).
- Surrounds and protects the cytoplasm.
- Between them is a structure known as the fluid mosaic model
- Each phospholipid molecule has a hydrophilic (water attracting) head
- Each phospholipid tail is hydrophobic (water repelling).
- Phospholipid molecules are arranged tail to tail so that the hydrophilic heads face outwards and the hydrophobic tails are protected.
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