Cilia- Definition, Structure, Formation, Types, Functions, Examples

Cilia

Cilia Definition Cilia are tiny hair-like appendages present on the eukaryotic cell surface that provides a means of locomotion to different protozoans and animals. The term ‘cilia’ is a Latin term meaning eyelash indicating the tiny eyelash-like appearance of the structure. Cilia are most prominent in protozoans of the phylum Ciliophora which are characterized by the presence of cilia. Ciliated …

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Flagella- Definition, Structure, Types, Arrangement, Functions, Examples

Flagella

Flagella Definition A flagellum or flagella is a lash or hair-like structure present on the cell body that is important for different physiological functions of the cell. The term ‘flagellum’ is the Latin term for whip indicating the long slender structure of the flagellum that resembles a whip. Flagella are characteristic of the members of the protozoan group Mastigophora, but …

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Connective Tissue- definition, structure, cells, types, functions, diseases

Connective Tissue

Connective Tissue Definition Connective tissue is one of the tissue systems in animals composed of different types of cells, all of which work together to provide internal support, adhesion, and cohesion between tissues to form organs and systems. The cells of connective tissue provide a matrix that gives metabolic support to cells as well as a medium for the transport …

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Cell Cycle- Definition, Phases, Regulation and Checkpoints

Cell Cycle

Cell Cycle Definition The cell cycle is the sequence of events occurring in an ordered fashion which results in cell growth and cell division. The cycle begins at the end of each nuclear division and ends with the beginning of the next. A cell cycle acts as a unit of biological time that defines the life history of the cell.  …

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Cell proliferation- Definition, assay, differentiation, diseases

Cell proliferation

Cell proliferation definition Cell proliferation is the process of increase in the number of cells which occurs as a result of regulated cell growth and cell division. Cell proliferation is responsible for the exponential increase in the cell number, resulting in rapid tissue growth. The process is balanced by cell division and cell differentiation or cell death, which maintains an …

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Buffy Coat- Definition, Preparation, Uses

Buffy Coat

Buffy Coat Definition A buffy coat suspension is a concentrated suspension of leukocytes and platelets that make up a part of the anticoagulated blood sample obtained by the process of density gradient centrifugation. The term buffy coat arose from the fact that the suspension has a color (yellowish beige) that is similar to buff. Buffy coats primarily contain white blood …

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Blood Cells- Definition and Types with Structure and Functions

Blood Cells- Definition and Types with Structure and Functions

Blood Cells Definition Blood cells, also known as hematocytes, hemocytes, or hematopoietic cells, are cells produced mostly in the blood and are synthesized primarily in the red bone marrow. Blood cells make up about 45% of the blood volume, while the rest (55%) is occupied by blood plasma. Blood contains three different types of blood cells, namely, red blood cell …

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Rough vs Smooth Endoplasmic Reticulum- Definition, 13 Differences, Examples

Differences Between Rough and Smooth Endoplasmic Reticulum

Rough Endoplasmic Reticulum (RER) The rough endoplasmic reticulum is a type of endoplasmic reticulum consisting of flattened sacs, studded with protein-synthesizing particles termed ribosomes on the outer surface. The rough endoplasmic reticulum is a part of the endomembrane system that is present in the cytoplasm of the cell. The organelle is involved in the synthesis, folding, modification, and transport of …

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Cytokinesis- Definition and Process (in animal and plant cells)

Cytokinesis in plant and animal cells

Cytokinesis Definition Cytokinesis is a physical process of cell division, that normally takes place after mitosis. Cytokinesis is the physical division of the cell cytoplasm, the cell membrane, and cell organelles in eukaryotic cells to produce two distinct cells at the end of the cell cycle in both mitosis and meiosis. In most cells, cytokinesis is initiated during the anaphase …

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Telophase in Mitosis and Meiosis (Telophase I, II)

Telophase in Mitosis and Meiosis

What is Telophase? Telophase is the fifth phase of mitosis and the final phase of meiosis as well. In meiosis, there are two phases of telophase I and telophase II. This is the stage of separation of duplicate genetic materials that are carried in the cell nucleus of the parent cells. They end up forming two identical daughter cells. Telophase …

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