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Questions and Answers
The cell membrane's ______ contributes to its role in maintaining cellular homeostasis.
The cell membrane's ______ contributes to its role in maintaining cellular homeostasis.
composition
The nucleus regulates cellular activities and maintains ______ information.
The nucleus regulates cellular activities and maintains ______ information.
genetic
Rough and smooth endoplasmic reticulum differ in their roles in protein synthesis and ______ metabolism.
Rough and smooth endoplasmic reticulum differ in their roles in protein synthesis and ______ metabolism.
lipid
The Golgi apparatus modifies, packages, and distributes proteins and ______ within and outside the cell.
The Golgi apparatus modifies, packages, and distributes proteins and ______ within and outside the cell.
Microfilaments, intermediate filaments, and microtubules contribute to cell shape, movement, and ______.
Microfilaments, intermediate filaments, and microtubules contribute to cell shape, movement, and ______.
Flashcards
Cell Membrane
Cell Membrane
A protective barrier that regulates what enters and leaves the cell, maintaining homeostasis.
Nucleus
Nucleus
The control center of eukaryotic cells that houses genetic material and regulates cellular activities.
Rough vs Smooth ER
Rough vs Smooth ER
Rough ER has ribosomes for protein synthesis, while Smooth ER is involved in lipid metabolism.
Golgi Apparatus
Golgi Apparatus
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Cytoskeleton
Cytoskeleton
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Study Notes
Cell Membrane
- The cell membrane's structure includes a phospholipid bilayer with embedded proteins.
- Its composition, including the lipid and protein components, helps maintain cellular homeostasis by controlling the passage of substances into and out of the cell.
Nucleus
- The nucleus in eukaryotic cells houses the cell's genetic material (DNA).
- It regulates cellular activities via controlling gene expression and protein synthesis.
Endoplasmic Reticulum
- Rough ER is studded with ribosomes and plays a vital role in protein synthesis.
- Smooth ER lacks ribosomes, synthesizes lipids and detoxifies harmful substances.
Golgi Apparatus
- The Golgi apparatus processes, modifies, and packages proteins and lipids.
- This organelle distributes these molecules within or outside the cell.
Ribosomes
- Ribosomes are the site of protein synthesis in both prokaryotic and eukaryotic cells.
- They are composed of ribosomal RNA (rRNA) and proteins, playing a critical role in cellular function.
Cytoskeleton
- The cytoskeleton comprises microfilaments, intermediate filaments, and microtubules.
- These structures maintain cell shape, enable movement, and facilitate cell division.
Centrosome and Centrioles
- Centrosomes, containing centrioles, are key in cell division.
- They organize the mitotic spindle, ensuring proper chromosome segregation during mitosis.
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Description
Test your knowledge on key cell organelles including the cell membrane, nucleus, endoplasmic reticulum, Golgi apparatus, and ribosomes. This quiz covers their structures, functions, and roles in maintaining cellular processes. Ideal for students studying cell biology at any level.
