Search Results for: polar_cell
Phospholipid
What is a phospholipid? Phospholipids are a subgroup of lipids. Other major types of lipids are fatty acids, sphingolipids,... Read More
Cell membrane
Cell Membrane Definition Just like any non-living body possesses a plastic or paper packaging material that keeps the... Read More
Amphipathic
Amphipathic Definition Amphipathic is a word used to describe a chemical compound containing both polar (water-soluble) and... Read More
Plasma membrane
Do all cells have a plasma (or cell) membrane? Yes, all cells have a biological membrane that separates the protoplasm from... Read More
Chemical Composition of the Body
In order to fully understand the mechanisms of human physiology, it is important to have an understanding of the chemical... 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
Hydrophobic
Hydrophobic Definition The fear of mixing or reacting with water under a given set of reaction parameters is often referred... Read More
Parthenogenesis
To reproduce, by definition, means to produce new offspring. The process is referred to as reproduction, which is one of the... Read More
Cell Structure
The interior of human cells is divided into the nucleus and the cytoplasm. The nucleus is a spherical or oval-shaped... Read More
Fluid mosaic model
Fluid Mosaic Model Definition What is the fluid mosaic model? The fluid mosaic model is a three-dimensional representation... 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
Centrosome
Centrosome Definition What is a centrosome? The centrosome is considered to be the main microtubule-organizing... Read More
Cell morphology
The basic essence for any living organism is its structural framework which includes appearance, form, and the... Read More
Movement of Molecules Across Cell Membranes
Diffusion Diffusion is essentially the movement of molecules from a region of higher concentration to a region of lower... Read More
Polar body
Definition noun, plural: polar bodies The cell that results from the asymmetric division of an oocyte. Supplement In animals... Read More
Characteristic
Characteristics Definition We can define characteristics as qualities or features that describe the distinctive nature or... Read More
Cytoskeleton
Definition noun plural: cytoskeletons cy·to·skel·e·ton (cell biology) The lattice or internal framework of a cell... Read More
Polypeptide
Polypeptide Definition Biology What are polypeptides? A polypeptide is defined as a polymer of amino acids joined together... Read More
Chromosome
Chromosomes Definition Chromosomes are thread-like structures present in the nucleus of plant and animal cells. Chromosomes... Read More
Carrier protein
Carrier protein is a type of cell membrane protein involved in facilitated diffusion and active transport of substances out... Read More
Human Reproduction
Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More
Cell matrix
Definition noun plural: cell matrices cell ma·trix, ˈmeɪtɹɪks An insoluble, dynamic gel in the cytoplasm, believed... Read More
Concentration gradient
What is a concentration gradient? A gradient is a measure of how steep a slope is. Thus, a concentration gradient would be... Read More
Facilitated diffusion
Facilitated diffusion is the transport of substances across a biological membrane from an area of higher concentration to an... Read More
Water in Plants
The movement of molecules, specifically water and any solutes, is vital to understand in light of plant processes. This will... Read More
Metabolism
Metabolism Definition What is metabolism in the body? Metabolism encompasses the various biochemical processes, reactions,... 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