Telophase – Definition, Mechanism, Significance

Telophase - Definition, Mechanism, Significance

What is Telophase? Telophase, derived from the Ancient Greek terms τέλος (télos) meaning ‘end’ and φάσις (phásis) signifying ‘appearance’, represents the concluding phase in the intricate process of cell division, both in mitosis and meiosis of eukaryotic cells. This phase is characterized by a series of events that essentially reverse the changes observed during prophase … Read more

Cell Fusion – Definition, Types, Significance

Cell Fusion - Definition, Types, Significance

What is Cell Fusion? Types of Cell Fusion Cells can fuse in one of two ways. Both homotypic and heterotypic cell fusion fall into this category. 1. Homotypic cell fusion 2. Heterotypic cell fusion 3. Other types of cell fusion There are several different types of cell fusion that can occur in both plant and … Read more

Centrosome – Definition, Structure, Functions, Diagram

Centrosome - Definition, Structure, Functions, Diagram

A centrosome is an organelle present in eukaryotic cells that serves as the main microtubule organizing center. It is composed of two centrioles, which are cylindrical structures made up of microtubules arranged in a nine-fold symmetry, and a matrix of proteins that surround and support the centrioles. The centrosome plays a critical role in various … Read more

Membrane Lipids – Definition, Structure, Formation, Functions

Membrane Lipids - Definition, Structure, Formation, FunctionsMembrane Lipids - Definition, Structure, Formation, Functions

What are Lipids? What is Membrane Lipid? Characteristics of Membrane Lipids Membrane lipids have several key characteristics, including: Overall, the characteristics of membrane lipids are important for the structure, function, and regulation of cell membranes, and can have significant impacts on cellular processes and signaling pathways. Composition of Membrane Lipid 1. Glycerol‐based lipids Glycerol-based lipids … Read more

Passive Transport – Definition, Types, Examples

Passive Transport - Definition, Types, Examples

Passive Transport Definition What is Diffusion? Factors affects the rate of Diffusion Characteristics of Passive Transport Overall, passive transport allows for the movement of molecules or ions across the cell membrane without requiring the cell to expend energy. Types Of Passive Transport There are four types of passive transport: 1. Simple Diffusion Factors affecting on … Read more

Membrane Proteins – Definition, Types, Functions

Membrane Proteins - Definition, Types, Functions

What is Membrane Protein? Membrane proteins are proteins that are embedded within or attached to the lipid bilayer of a cell membrane. These proteins play crucial roles in various cellular functions, including cell signaling, transport of molecules, and structural support. Location of Membrane Proteins Membrane proteins are connected with the cell membrane, the lipid bilayer … Read more

Monocytes – Definition, Structure, Types, Functions

Monocytes - Definition, Structure, Types, Functions

What are Monocytes? Definition of Monocytes Monocytes are a type of white blood cell that serves as an immune effector cell. They are part of the innate immune system and play a critical role in phagocytosis, antigen presentation, and cytokine secretion. Monocytes differentiate into macrophages and dendritic cells, contributing to immune defense against pathogens and … Read more

Cytoplasmic Matrix – Definition, Structure, Properties

Cytoplasmic Matrix - Definition, Structure, Properties

Cytoplasmic Matrix Physical Nature of Cytosol (Or Cytoplasmic Matrix)  The cytosol (cytoplasmic matrix) is a colloidal substance that is colourless or greyish, transparent, viscous, gelatinous, or jelly-like. It is more dense than water and may flow. In the past, there has been considerable debate on the physical nature of the matrix. Regarding the physical properties … Read more

Extrinsic Pathway of Apoptosis – Definition, Mechanism, Functions, Regulation

Extrinsic Pathway of Apoptosis - Definition, Mechanism, Functions, Regulation

The extrinsic pathway of apoptosis is a process whereby cells initiate programmed cell death in response to external signals, such as those from neighbouring cells or the immune system. This route is activated by the binding of particular ligands to cell surface death receptors, such as tumour necrosis factor (TNF) or Fas ligand. The binding … Read more

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