63 results found

Search Results for: cell differentiation

Cell differentiation

Definition noun The normal process by which a less specialized cell develops or matures to possess a more distinct form... Read More

Autocrine signaling

Autocrine Signaling Definition What is autocrine signaling? Autocrine signaling is a type of cell signaling wherein a cell... Read More

Cytoskeleton

Definition noun plural: cytoskeletons cy·to·skel·e·ton (cell biology) The lattice or internal framework of a cell... Read More

Centrosome

Centrosome Definition What is a centrosome? The centrosome is considered to be the main microtubule-organizing... Read More

Living things

Living Things Definition A living thing pertains to any organism or a life form that possesses or shows the characteristics... Read More

Tissue

Tissue Definition What is tissue in the body? The body tissue is an aggregation of cells that function together and have a... Read More

First time! Human blood cell turned into a young sex cell

In essence, our body consists of two major types of cells – one group involved directly in reproducing sexually (called... Read More

Growth

Growth Definition What is growth in biology? Growth is the irreversible increase of an organism’s size over a given... Read More

Chondroblast

There are two forms of cells in cartilage: chondroblasts and chondrocytes. The chondroblasts are cells that secrete the... Read More

Dedifferentiation

Definition noun (developmental biology) A cellular process in which a differentiated cell loses its special form or... Read More

Gamete

Definition of Gamete What is a gamete? A gamete is the mature reproductive or sex cell that contains a haploid number of... Read More

Differentiation

Definition noun (developmental biology) The normal process by which a less specialized cell develops or matures to become... Read More

Eukaryotic cells

Eukaryotic Cells Definition What is a eukaryotic cell? The term “cell” is a common word in biology, anatomy, and... Read More

Smooth endoplasmic reticulum

Smooth Endoplasmic Reticulum Definition Smooth endoplasmic reticulum (sER) is (a part of) endoplasmic reticulum that is... Read More

Stem cell

Definition noun, plural: stem cells (1) An unspecialized cell characterized by the ability to self-renew by mitosis while... Read More

Animal

Animal Definition An animal (plural: animals) refers to any of the eukaryotic multicellular organisms of the biological... Read More

Maturation

Definition noun, plural: maturations (1) The process of differentiation (2) The process of becoming... Read More

Homeostatic Mechanisms and Cellular Communication

Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory... Read More

Gene Regulation in Eukaryotes

Reviewed by: Mary Anne Clark, Ph.D. Eukaryotic Gene Structure In prokaryotes the DNA is located in the... Read More

Cell determination

Definition noun The process in which a previously undifferentiated cell is already programmed to become a specific cell type... Read More

Spermiogenesis

Spermiogenesis Definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More

A New Theory on the Origin of Animal Multicellularity

Multicellular life, purportedly, started around 600 million years ago. From single-celled, certain organisms eventually... Read More

Budding

Budding definition In a general context, budding refers to a state where development begins. In science, its meaning refers... Read More

Genetic Control – On and Off Genes

Reviewed by: Mary Anne Clark, Ph.D. This lesson looks at the various factors involved that affect growth and... Read More

A twist of fate — Reprogrammed fibroblasts resemble embryonic stem cells

Stem cell biology takes another exciting leap forward as scientists report that normal tissue cells can be reprogrammed to... Read More

Anatomy

Anatomy Definition Often we hear the term 'anatomy' while learning about the body and how it works. What is anatomy? What... Read More

Nuclear lamina

Definition noun plural: nuclear laminae or nuclear laminas nu·cle·ar lam·i·na, ˈn(j)ukliɚ ˈlæm.ɪ.nə (cell... Read More

Simple squamous epithelium

Simple Squamous Epithelium Definition Simple squamous epithelium, also known as simple squamous epithelial tissue or... Read More

Roots

Upon seed germination, the embryo root, called the radicle, grows and develops into the first root. The radicle may thicken... Read More

Human Reproduction

Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More

Growth and Plant Hormones

Growth All living organisms begin in the same form: as a single cell. That cell will divide and the resulting cells will... Read More

CFU-GEMM

Definition noun A stem cell capable of differentiating into granulocyte, erythrocyte, monocyte, and... Read More

Epidermis

Epidermis Definition What is the epidermis? We can define the epidermis as one or more layers of cells forming the tough... Read More

Spermatogenesis

Spermatogenesis is the biological process of producing mature sperm cells, and occurs in the male gonad of a sexually... Read More

Life

Life Definition noun, plural: lives (1) A distinctive characteristic of a living organism from dead organism or non-living... Read More

Xylem

Xylem Definition Xylem is defined as a plant tissue that transfers water and nutrients from roots to all over the plant... Read More

Circulation

Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More

Plant Auxins – Phototropism & Geotropism

As with animals, plants also use a variety of hormones to control their growth and development. A family of hormones called... Read More

Thrombopoietin

Definition noun, plural: thrombopoietins A glycoprotein hormone produced by liver and kidney associated with the production... Read More

Myogenesis

Definition noun (embryology) The formation of muscle tissues through the differentiation of progenitor cells myoblasts... Read More