Category: Lab Notes: Cell Biology

Cell Polarity

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Cell polarity is a fundamental feature of cellular organization that establishes and maintains asymmetric distribution of cellular components, proteins, and…

Epithelial Cells Vs Endothelial Cells

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Criteria Epithelial Cells Endothelial Cells Remarks Definition Cells forming the outermost layers of body surfaces and internal linings of cavities…

Apical-Junctional Complex (AJC)

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The apical-junctional complex (AJC) is a specialized structure found at the apical region of the lateral membrane in epithelial and…

Epithelial-to-Mesenchymal Transition (EMT)

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Epithelial-to-Mesenchymal transition (EMT) is a fundamental biological process where epithelial cells undergo multiple biochemical changes to acquire a mesenchymal cell…

Cell Culture: Timeline of Key Events

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Cell culture has progressed from simple tissue maintenance to a fundamental technology driving advances in biology, medicine, and biotechnology. This…

Animal Cell

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Animal cells are eukaryotic cells that form the basic structural units of animal tissues and organs. Unlike plant cells, they…

Prokaryotic Cell

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Prokaryotic cells are the simplest and most ancient form of cellular life, represented by bacteria and archaea. These microscopic organisms…

Deoxyribonucleotides vs Ribonucleotides

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Criteria Deoxyribonucleotides (dNTPs) Ribonucleotides (NTPs) Remarks Definition Monomeric units of DNA, consisting of a nitrogenous base, deoxyribose sugar, and phosphate…

DNA Synthesis (Replication) and RNA Synthesis (Transcription)

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Criteria DNA Synthesis (Replication) RNA Synthesis (Transcription) Remarks Definition Process by which a cell makes an exact copy of its…

RNA Synthesis (Transcription) Vs Protein Synthesis (Translation)

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Criteria RNA Synthesis (Transcription) Protein Synthesis (Translation) Remarks Definition Process of synthesizing RNA from a DNA template Process of synthesizing…

Mitochondria Vs Chloroplast

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Criteria Mitochondria Chloroplast Remarks Definition Double-membrane-bound organelle responsible for aerobic respiration Double-membrane-bound organelle responsible for photosynthesis Both are semi-autonomous organelles…

Smooth Endoplasmic Reticulum Vs Rough Endoplasmic Reticulum

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Criteria Smooth Endoplasmic Reticulum (SER) Rough Endoplasmic Reticulum (RER) Remarks Definition A membrane-bound organelle lacking ribosomes on its surface A…

Plasma Membrane Vs Nuclear Membrane

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Criteria Plasma Membrane Nuclear Membrane Remarks Definition The outermost boundary of the cell that encloses the cytoplasm A double-membrane structure…

Cytoplasm Vs Nucleoplasm

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Criteria Cytoplasm Nucleoplasm Remarks Definition The entire content within the plasma membrane excluding the nucleus The semi-fluid substance within the…

DNA (Deoxyribonucleic Acid) vs RNA (Ribonucleic Acid)

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Criteria DNA (Deoxyribonucleic Acid) RNA (Ribonucleic Acid) Remarks Structure Double-stranded helix (typically B-form); antiparallel strands Single-stranded (can form secondary structures…