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Questions and Answers
Which of the following is NOT a living component of a plant cell?
The Golgi Apparatus is responsible for cellular respiration in plant cells.
False
What is the function of the nucleus in a plant cell?
Control center containing genetic material
The outermost layer of a plant cell is called the __________.
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Match the following plant cell components with their functions:
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What is the primary composition of the middle lamella?
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The middle lamella is located outside the primary cell walls of neighboring cells.
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What role does the middle lamella play in plant cells?
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In woody tissues, the middle lamella may be ________.
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Match the following terms related to the middle lamella with their descriptions:
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What is the primary function of the cell wall in plant cells?
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The cell wall is present in both plant and animal cells.
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Name the three layers that make up the plant cell wall.
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The structure that helps maintain the shape of the plant cell is the __________.cell wall
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Match the following layers of the cell wall with their characteristics:
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Study Notes
Plant Cell Components
- Plant cells have both living and non-living components.
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Living components include:
- Cell wall
- Protoplast
- Cytoplasm
- Plasma membrane
- Endoplasmic Reticulum (ER)
- Golgi Apparatus
- Mitochondria
- Plastids
- Ribosomes
- Nucleus
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Non-living components include:
- Vacuole
- Ergastic substances:
- Reserve food (e.g., carbohydrates, proteins, fats & oils)
- Excretory materials (e.g., calcium oxalate, calcium carbonate)
The Middle Lamella
- Acts as a "cement" holding cells together in tissues.
- Found between the primary cell walls of adjacent cells.
- Primarily composed of pectic substances.
- Can be lignified in woody tissues.
- Can fill intercellular spaces in supporting tissues.
Plant Cell Wall
- Rigid, supportive, and protective outer layer of the plant cell.
- Located outside the plasma membrane.
- Maintains the shape of the plant cell.
- Absent in animal cells.
- Composed of three layers:
- Middle lamella: "Cement" between adjacent primary cell walls.
- Primary wall: First layer formed during cell growth, flexible and thin.
- Secondary wall: Formed after cell growth, rigid and thick, provides structural support.
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Description
Test your knowledge on the living and non-living components of plant cells, including the plant cell wall and middle lamella. This quiz covers key components such as organelles and their functions, as well as structural features that support plant cells.
