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Cell Biology

Cell biology or cytology is a branch of biology that deals with studies related to the structure and function of a cell-based on the concept that the cell is the fundamental unit of life.

  • A detailed study of the cellular structure and function provides a basis for studies related to tissues, organs, and the body.
  • The number of cells in an organism might differ as some organisms have a single cell while others are made up of billions of cells.
  • In the case of single-celled organisms, the singular cell is studied, whereas, for multicellular organisms, individual cells of different tissues are studied.
  • Initially, only the outer structure of a cell was studied due to the lack of complex microscopic processes.
  • Over the years, however, advancements in other areas have made it possible to study the internal cellular components of a cell.
  • Apart from the cell structure and function, cell biology also deals with cell communication and signaling.
  • Cell biology also involves the studying of the cell cycle and cell division, which provides insight into the cellular composition of an organism.
  • Cell biology is also linked with other studies like genetics, molecular biology, cytochemistry, and biochemistry.
  • Cells are distinguished as prokaryotic and eukaryotic cells based on the complexity of the cell.
  • Cell biology enables studying the biochemical mechanisms involved in cell metabolism and different forms of cellular energy.
  • Focusing on the structural and functional aspects of a single cell allows a detailed understanding of the body overall.
  • It is also easier to perform research on a single cell as it can be modified and observed efficiently.
  • Techniques in cell biology have advanced over the years with new and improved imaging techniques to observe smaller cellular organelles.
  • Cell biology, together with systemic biology, helps in the answering of complex questions like the relationship between cellular networks, the evolutionary relationship between genomes, and the complexity of the biomolecular composition of different living organisms.

Cell Organelles: Structures, Functions & Detailed Diagrams

April 9, 2025April 9, 2025 by Anupama Sapkota
Cell Organelles- Structure and Functions with diagram

Cell organelles are specialized entities present inside a particular type of cell that performs a specific function. There are various cell organelles, out of which, some are common in most … Read more

Telophase in Mitosis & Meiosis: Key Processes & Significance

April 9, 2025April 2, 2025 by Faith Mokobi
Telophase in Mitosis and Meiosis

Telophase is the fifth phase of mitosis and the final phase of meiosis as well. In meiosis, there are two phases: telophase I and telophase II. This is the separation … Read more

Anaphase in Mitosis & Meiosis: Processes & Significance

April 9, 2025March 2, 2025 by Faith Mokobi
Anaphase in Mitosis and Meiosis

Anaphase is the phase that separates duplicate genetic materials that are carried in the nucleus of the parent cell, into the two identical daughter cells. Image Source: Wikipedia and Wikipedia (Ali … Read more

Mitosis: Phases, Applications & Diagrams Explained

December 28, 2024October 18, 2024 by Anupama Sapkota
Mitosis- definition, purpose, stages, applications with diagram

Mitosis is the process of cell division in which one cell gives rise to two genetically identical daughter cells, resulting in cell duplication and reproduction. Purpose of Mitosis The process … Read more

Types of Leukocytes: Key Structures & Vital Functions

December 25, 2024September 7, 2024 by Babita Sharma
Types of Leukocytes (White Blood Cells)

Leukocytes, also known as white blood cells, are a cellular component of the blood that has a nucleus, absence of hemoglobin, and is capable of motility. They are part of … Read more

Neutrophils Unveiled: Structure, Count & Key Functions

December 25, 2024August 19, 2024 by Anupama Sapkota
Neutrophils - Definition, structure, count, range, functions

Neutrophils are a type of white blood cell with multi-lobed nuclei and stainable cytoplasmic granules. Neutrophil Structure Neutrophils Test/ Absolute Neutrophil Count Or ANC= Absolute mature neutrophils + absolute immature … Read more

Animal Cell Explained: Structure, Parts & Vital Functions

December 25, 2024May 19, 2024 by Faith Mokobi
Animal Cell Definition Structure Parts Functions and Diagram

An animal cell is a eukaryotic cell that lacks a cell wall, and it is enclosed by the plasma membrane. The cell organelles are enclosed by the plasma membrane including … Read more

Animal Cell Culture: Types, Cell Lines, Procedure, Uses

May 26, 2024May 2, 2024 by Anupama Sapkota
Animal Cell Culture

Animal cell culture is a type of biotechnological technique where animal cells are artificially grown in a favorable environment. Types of Animal cell culture Animal cell cultures can be divided … Read more

Red Blood Cells (RBCs): Structure, Life Cycle, Functions

April 23, 2024 by Tek Raj Ojha
Red Blood Cells (RBCs)

Red blood cells or RBCs are also called erythrocytes. They serve as the functional components in blood which is responsible for the transportation of gases and nutrients across the entirety … Read more

White Blood Cells (WBCs): Types, Functions and Immunity

April 23, 2024April 21, 2024 by Tek Raj Ojha
White Blood Cells (WBCs)

White blood cells or WBCs are also known as leukocytes. WBCs are essential components of immune system as they play a crucial role in protecting the body from infections and … Read more

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