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Cell Biology
Microtubules – Definition, Structure, Functions
Microtubules Definition (What are microtubules?) Occurrence of Microtubules Microtubules Structure Chemical Composition
Cell Biology
Cell biology is the branch of biology that studies cells, the basic units of life. It is concerned with the structure, function, and behavior of cells, as well as the ways in which they interact with their environment.
Cells are the fundamental building blocks of living organisms. They are the smallest unit of life that can perform all the functions necessary for life, including metabolism, growth, reproduction, and response to stimuli. Cells are also the basic unit of structure in all living organisms, from simple single-celled organisms to complex multicellular organisms such as animals and plants.
Cell biology seeks to understand the properties and behaviors of cells in order to understand how they function and how they interact with their environment. This includes studying the various organelles within cells, such as the nucleus, mitochondria, and ribosomes, and how they work together to carry out the functions of the cell. It also includes studying the way in which cells communicate with each other and their environment, as well as the mechanisms by which they grow and divide.
Overall, cell biology is an important field of study that helps us understand the fundamental processes of life and how they are regulated at the cellular level.
Cell biology is an important field of study because it helps us understand the fundamental processes of life and how they are regulated at the cellular level. This knowledge is critical for many areas of science and medicine, including the development of new drugs and therapies, the understanding of diseases and disorders at the cellular level, and the study of the evolution of cells and organisms.
Some specific examples of the importance of cell biology include:
- Understanding the causes of diseases: By studying cells and how they function, scientists can identify the underlying causes of many diseases and disorders. This can help in the development of treatments and therapies that target specific cells or processes in the body.
- Developing new drugs and therapies: The knowledge of cell biology can be used to develop new drugs and therapies that target specific cells or processes in the body. For example, many cancer therapies are designed to target and kill cancer cells, while others are designed to stimulate the immune system to attack cancer cells.
- Improving our understanding of the body: By studying cells and how they function, we can gain a better understanding of how the body works as a whole. This knowledge can be used to improve healthcare and prevent or treat diseases and disorders.
- Studying the evolution of cells and organisms: By studying the structure and function of cells, we can learn about the evolution of cells and organisms over time. This can help us understand how different organisms are related and how they have adapted to different environments.
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Cell Biology
Cytoskeleton – Definition, Structure, Functions
The cytoskeleton is a dynamic network of protein filaments found in the
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Cell Biology
Channel Protein – Definition, Structure, Function, Example
What is Channel Protein? A channel protein is a unique arrangement of
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Cell Biology
Peripheral Protein – Structure, Examples, Functions
What is Peripheral Protein? Peripheral protein, or peripheral membrane protein, is a
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Cell Biology
Different Plasma Membrane Models
Plasma Membrane Plasma membrane refers to the envelope-like membrane or structure that
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Cell Biology
Plasmids – Definition, Structure, Functions, Examples
What are Plasmids? Definition of Plasmids Plasmids are small, circular, extrachromosomal DNA
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Cell Biology
Chromosome Abnormalities Types, Mechanism, Detection
A chromosome disorder, also known as Chromosome Abnormalities is caused by an alteration in the size or the structure of chromosomes.
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Cell Biology
Chromosome Definition, Function, Structure, Types
Chromosomes are a collection of tightly coiled DNA that are located in the nucleus of virtually every cell of our body. Humans possess 23 chromosome pairs.
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Cell Biology
Nucleoid – Definition, Functions, Characteristics
The Nucleoid (meaning it's like a nucleus) is an irregularly-shaped part of the prokaryotic cell which is home to all or most part of the gene material. The chromosome of a protokaryote is circular and its length is big in comparison to cell dimensions, which is why it has to be compressed to be able to fit. Contrary to the nucleus in a prokaryotic cell, it's not protected by the nuclear membrane.
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Cell Biology
Inclusion bodies Definition, Classification, Examples
What are Inclusion Bodies? Inclusion bodies are thick in size, spherical and
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Cell Biology
Lysosome – Definition, Structure, Functions, Types
Lysosomes are membranous, spherical sacs that are made up of enzymes. They are acidic hydrolase enzymes that are capable of digesting cellular macromolecules. The membrane of the lysosome helps keep its internal compartments acidic, and also separates the digestion enzymes and the cells' other components. Lysosome enzymes are created by the proteins of the endoplasmic reticulum , which is then enclosed in vesicles created by the Golgi system. Lysosomes are created by budding out of in the Golgi complex.
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Cell Biology
Mesosomes Definition, Functions
Mesosomes and chondrioids are foldable into invaginations of the plasma membranes of bacteria. They are made through chemical fixation techniques that are used to prepare samples for electron microscopy.
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Cell Biology
Ribosome – Definition, Structure, Size, Location, Function, Characteristics
Ribosomes, sometimes referred to as Palade granules (after the discovery of George Palade and due to their granular shape) are macromolecular devices which are present in every cell, and that carry out biochemical protein synthesizing (mRNA translation).
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Cell Biology
Sandwich (Davson–Danielli) model of cell membrane
The Davson Danielli model (or the paucimolecular model) was an illustration that depicts the membrane in cells. It was developed in the year 1935 by Hugh Davson and James Danielli The model is a bilayer of phospholipids which is located within two layers of protein globular. the model is trilaminar as well as lipoproteinous.
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Cell Biology
Animal Cell Labeled Diagram, Structure, Types, Functions
Animal cell are considered to be the fundamental living species belonging to the kingdom Animalia. They are eukaryotic cells which means they possess an actual nucleus as well as organelles, which are special structures which perform various functions. Animal cells don't have specific organelles for plants, such as cell walls that support the plant cell or the chloroplasts, an organelle that is responsible for photosynthesis.
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Cell Biology
Plastids Definition, Types, Structure, Functions
Plastid is a two-membrane-bound organelle that is involved in the synthesis and preservation of nutrients. typically found in the photosynthesis cells of plants. Plastids were first discovered and identified in the work of Ernst Haeckel, but A. F. W. Schimper was the first to offer an accurate definition.
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Cell Biology
Lysosomes Definition, Structure, Formation, Functions, Types and Diagram
Lysosomes are membrane-boundand dense granular structures that contain hydrolytic enzymes that are responsible for digestion in extracellular and intracellular cells. The term "lysosome" is composed of two words "lysis" which means breakdown, and "soma" which means body. It is a crucial cell organelle, responsible for inter- and extracellular breakdown of various substances.
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Cell Biology
Golgi Apparatus – Definition, Structure, Functions, and Diagram
The principal purpose for Golgi's main function is Golgi apparatus is to transfer vesicles or packets of different cell products, to various areas of the cell.
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Cell Biology
Cilia and Flagella Definition, Structure, Function
Cilia as well as Flagella are complex cytoplasmic filamentous structures that protrude through the cell's wall. They are small, particularly distinct appendices to the cell. The flagella (singular meaning flagellum) are hairy, long structures that extend out from the plasma membrane. They can be utilized to move the entire cell.
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Cell Biology
Secretory Vesicles Definition, Structure, Functions, and Diagram
may contain materials that must be eliminated from the cell. These materials could be harmful to cells, such as end products of chemical reactions or waste products.
