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Questions and Answers
What is the main function of vacuoles?
What is the main function of vacuoles?
What is the characteristic of plastids in plant cells?
What is the characteristic of plastids in plant cells?
What is the primary function of mitochondria?
What is the primary function of mitochondria?
What is the main function of the nucleus?
What is the main function of the nucleus?
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What is the characteristic of prokaryotic cells?
What is the characteristic of prokaryotic cells?
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What is the function of chloroplasts?
What is the function of chloroplasts?
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What is the main function of ribosomes?
What is the main function of ribosomes?
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What is the characteristic of eukaryotic cells?
What is the characteristic of eukaryotic cells?
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What is the basic structural and functional unit of all forms of life?
What is the basic structural and functional unit of all forms of life?
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What is the main function of lysosomes in cells?
What is the main function of lysosomes in cells?
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What is the difference between plant and animal cells in terms of cell walls?
What is the difference between plant and animal cells in terms of cell walls?
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What is the function of the nucleus in eukaryotic cells?
What is the function of the nucleus in eukaryotic cells?
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What is the main function of mitochondria in cells?
What is the main function of mitochondria in cells?
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What are the four primary types of tissues in multicellular organisms?
What are the four primary types of tissues in multicellular organisms?
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What is the function of chloroplasts in plant cells?
What is the function of chloroplasts in plant cells?
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What is the main function of vacuoles in cells?
What is the main function of vacuoles in cells?
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Study Notes
Cell Basics
- Cell is the basic structural and functional unit of all forms of life
- Each cell performs specific functions and contains organelles that carry out various tasks
- There are two main types of cells: eukaryotic and prokaryotic
Tissues
- Tissues are groups of cells working together to perform a specific function
- Cells within a tissue are structurally and functionally related
- There are four primary types of tissues in multicellular organisms:
- epithelial tissue
- connective tissue
- muscle tissue
- nervous tissue
Plant Cell
- Has a rigid cell wall
- Contains chloroplasts that help in photosynthesis
- Has a large central vacuole that stores water, nutrients, and waste products
Animal Cell
- Surrounded by a cell membrane that provides structure
- Comes in various shapes (e.g., round, oval)
- Contains a nucleus that houses genetic material
Nucleus
- The nucleus is the control center of cellular activities and the storehouse of the cell's DNA
- It is a double-membraned organelle found in all eukaryotic cells
- The nucleus manages and regulates the cell's activities and contains genetic information
Mitochondria
- Produces energy (ATP) through cellular respiration
- Contains circular DNA
Lysosome
- Lysosomes are organelles that digest waste products of cells
- They respond to foreign substances entering the cell by engulfing them
- Found in all animal cells, but rarely found in plant cells due to their cell wall
Vacuole
- Vacuoles are storage bubbles enclosed by a membrane
- Stores food or a variety of nutrients that a cell might need to survive
- Stores waste products, which are eventually thrown out by vacuoles
- Plant cells have larger vacuoles compared to animal cells
Plastids
- Large, membrane-bound organelles that contain pigments
- Three types of plastids based on pigments:
- Chloroplast: contains chlorophyll, giving plants their green color
- Chromoplasts: provide plants with yellow, orange, red colors
- Leucoplasts: colorless, store nutrients
Organelles
- Mitochondria: energy production through cellular respiration
- Nucleus: manages and regulates cell activities, contains genetic information
- Cytoplasm: holds cellular structures, provides medium for chemical reactions
- Chromosomes: stores genetic information in the nucleus
- Ribosomes: synthesizes proteins
- Cell Wall: provides structural support and protection to plant cells
- Chloroplast: performs photosynthesis, converting light energy into chemical energy
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Description
Learn about the basic structure and function of cells, including eukaryotic and prokaryotic cells, and how they form tissues that perform specific functions.
