54 results found

Search Results for: nuclear envelope

Nuclear envelope

Definition noun plural: nuclear envelopes nu·cle·ar en·ve·lope, ˈn(j)ukliɚ ˈɛn.və.ləʊp The two layered membrane... Read More

Nucleus

In cell biology, the nucleus is the large, membrane-bounded organelle that contains the genetic material in the form of... 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

Nuclear pore complex

Definition noun plural: nuclear pore complexes ˈnu kli ər, pɔː ˈkɒmplɛks A complex of nucleoporins resulting in the... Read More

Endomembrane system

Ever wondered how biomolecules are made within the cell and then they are released outside the cell for use by the body?... Read More

Nuclear pore

Definition noun plural: nuclear pores ˈnu kli ər, pɔː Any of the many perforations on the nucleus as a result of the... Read More

Nucleoporin

Definition noun plural: nucleoporins Any of the family of porins that make up the nuclear pore complex Details Overview... Read More

Perinuclear space

Definition noun plural: perinuclear spaces per·i·nu·cle·ar space The space or gap between the inner and outer... Read More

Nuclear matrix

Definition noun plural: nuclear matrices (cell biology) A 3-dimensional filamentous protein network that extends... Read More

Nucleoplasm

Definition noun plural: nucleoplasm nu·cle·o·plasm, ˈnjuːklɪəˌplæzəm (cell biology) The protoplasm of the... Read More

Mitosis

Mitosis Definition What is mitosis? In biology, mitosis refers to the cellular process where a single cell divides... Read More

Plant Cells vs. Animal Cells

Plant Cells Most cells are not visible with the naked eye. However, with microscopes of various types, plant cells can be... Read More

Meiosis

What is Meiosis? A simple definition of meiosis would be is this: meiosis is the process of cell division that results in... Read More

Eukaryotic cells

Eukaryotic Cells Definition What is a eukaryotic cell? Eukaryotic cells refer to the cells of (or derived from) eukaryotes,... Read More

Endomembrane

Definition noun, plural: endomembranes The membraneous components in a cell, i.e. nuclear envelope, endoplasmic reticulum,... Read More

Organism

An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and... Read More

Cytoplasm

Cytoplasm Definition The cell is known as the building block of all life. Blocks are made up of numerous particles and... Read More

Prophase

Prophase is the first stage of mitosis; the very first step in this crucial process of the M-phase of the cell cycle. Now as... Read More

Prophase I

Organisms all use mitosis to create more cells in the body. Meiosis, a similar process, is used in some organisms to undergo... Read More

Meiosis and Alternation of Generations

Review of Mitosis: Cell Cycle The cell cycle contains the process in which cells are either dividing or in between... Read More

Metaphase

Metaphase Definition Metaphase is the third phase of mitosis after prophase and before anaphase. Mitosis is the process by... Read More

Cell Structure

The interior of the cell is divided into the nucleus and the cytoplasm. The nucleus is a spherical or oval-shaped structure... Read More

Prometaphase

Definition noun The phase of mitosis between prophase and metaphase wherein the nuclear envelope breaks down and form... Read More

Organelle

The cell is regarded as the structural, functional, and biological unit of all organisms. It is a membrane-bound structure... Read More

Nuclear membrane

Definition noun plural: nuclear membranes Synonym: nuclear envelope, i.e. the double-layered membrane surrounding the... Read More

Endoplasmic reticulum

Definition noun plural: endoplasmic reticula (cell biology) A membrane-bound organelle that occurs as labyrinthine,... Read More

Smooth endoplasmic reticulum

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

Diakinesis

Definition noun The final stage of prophase I of meiosis I in which the chromosomes condense, the nucleolus fragments and... Read More

Dinoflagellate

A dinoflagellate is a flagellate algae characterized by their two flagella of unequal length. One of the flagella is lying... 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

Animal cell

An animal cell is the fundamental functional unit of life of animals. It is also the basic unit of reproduction. Animal... Read More

Cytokinesis

The cell cycle of eukaryotes is a cyclical series of biological events that certain asexual cells go through. The cell cycle... Read More

Eukaryote

Eukaryote refers to any of the single-celled or multicellular organisms whose cell contains a distinct, membrane-bound... Read More

Prophase II

Definition noun The first stage in meiosis II highlighted by the disintegration of nucleolus and nuclear envelope, the... Read More

Protoplasm

Definition noun plural: protoplasms pro·to·plasm, ˈprəʊtəˌplæzəm The fluid living content of the cell that... Read More

Karyotheca

Definition noun Synonym: nuclear envelope, i.e. the double-layered membrane surrounding the nucleus of a eukaryotic cell,... Read More

Cell

A biological cell is a membrane-bound structure that occurs as a functional independent unit of life (such as in unicellular... Read More

Cell matrix

Definition noun plural: cell matrices cell ma·trix, ˈmeɪtɹɪks An insoluble, dynamic gel in the cytoplasm, believed... Read More

Rough endoplasmic reticulum

Definition noun plural: rough endoplasmic reticula (cell biology) A type of endoplasmic reticulum wherein polyribosomes... Read More

Flora

Flora in Roman history refers to flowers. Flora was considered the god of spring for the Roman empire. In ecology, flora is... Read More