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Prokaryotic Cells: Characteristics: No Nucleus: Prokaryotic cells keep their genetic material in a central area called the nucleoid without a surrounding membrane. No Membrane-Bound Organelles: They don't have enclosed structures like mitochondria or the endoplasmic reticulum within the cell. Smaller Size: Prokaryotic cells are generally tinier compared to eukaryotic cells. Structure: Cell Wall: Many prokaryotic cells have a tough cell wall outside their cell membrane. Cell Membrane: This membrane acts as a protective barrier around the cell, separating it from the surroundings. Cytoplasm: It holds the DNA, ribosomes, and various cell structures. Flagella and Pili: Some have flagella for movement and pili for sticking to surfaces. Functions: Genetic Information: The nucleoid contains the DNA essential for cell functions and replication. Cellular Metabolism: ...

Absolutely, let's break down the Cell Theory into simpler terms, covering each subtopic: Introduction to Cell Theory: Cell Theory is a fundamental concept in biology that explains the structure and function of living organisms. Basic Components: All living things are made up of cells. Cells are the basic building blocks of life. Cell Structure: Cells have a defined structure with different parts, such as the cell membrane, nucleus, and cytoplasm. Functions of Cells: Cells carry out essential functions, including metabolism, growth, response to stimuli, and reproduction. Three Key Principles of Cell Theory: Principle 1: All living organisms are composed of one or more cells. Simply put, everything alive is made up of cells. Principle 2: The cell is the basic unit of life. Cells are like tiny building blocks that make up living things. P...

FUNDAMENTAL OF CELL BIOLOGY Introduction to Cells: Explanation: Cells are the basic building blocks of living things. They are like tiny, functional units that make up all living organisms, from plants and animals to humans. Cell Structure: Explanation: Cells have different parts with specific jobs. The outer layer is called the cell membrane, like a protective skin. Inside, there is a jelly-like substance called cytoplasm, and a central control centre called the nucleus. Types of Cells: Explanation: There are two main types of cells - prokaryotic and eukaryotic. Prokaryotic cells are simpler and lack a nucleus, found in bacteria. Eukaryotic cells, found in plants, animals, and humans, have a nucleus and more complex structures. Cell Functions: Explanation: Cells perform various functions to keep living organisms alive. They take in nutrients, convert them into energy, ...

On this page, you will find all topics related to Immunology! Here Every Major Topic Includes Sub-Major Topics. Find the topic you want to learn! Fundamentals of Cell Biology: Introduction Cell theory, Prokaryote and Eukaryote cell: Structure and Function of cells Tools and Techniques of Cytology: Microscopy and Staining Cell Membranes: Model, Structure, function; Cell junctions and adhesion; Transport proteins; Membrane Proteins; Membrane potential; Transport across the plasma membrane. Chromosomes : Morphology (Structural organisation: nucleosome, solenoid model, chromatid, centromere and telomere); Types (special type). Cell trafficking and signalling: cell signals; signalling pathways; cell surface receptors, protein phosphorylation; Quorum sensing phenomenon. Cell Division & Cell Cycle: regulation, growth and di...