16 results found

Search Results for: inner cell mass

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

Inner cell mass

Inner cell mass a group of cells found in the mammalian blastocyst that give rise to the embryo and are potentially capable... Read More

Zygote

Zygote Definition What is a zygote? A zygote is a fertilized eukaryotic cell. In biology, medical science, and other allied... Read More

Human Reproduction

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

Ganglia

Ganglia Definition What are ganglia? To simply define ganglia in biology, it is the structure of an oval shape that... Read More

Ganglion

Ganglia Definition What are ganglia? To simply define ganglia in biology, it is the structure of an oval shape that... Read More

Phosphorylation

Phosphorylation Definition We can define phosphorylation as a biochemical process in which a phosphate molecule is added to... Read More

Myocardium

Myocardium Definition What is the myocardium of the heart?  It is the muscular middle layer of the heart that is... Read More

Glucose

Glucose occurs naturally and is ubiquitous. It is one of the three most common monosaccharides; the other two are fructose... Read More

Plant Meristems and Growth

A common mistake that many people assume is that an increase in size means an increase in growth. This is not the case.... Read More

Circulation

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

Epiblast

Definition noun (embryology) The outer (upper) ectodermal layer of the embryonic disc, closer to the amniotic cavity, and... Read More

Protein Activity and Cellular Metabolism

Protein Binding Sites The ability of various molecules and ions to bind to specific sites on the protein surface forms the... Read More

Kidneys and Regulation of Water and Inorganic Ions

Renal Functions Kidneys remove/add substances from/to the plasma. Regulate water concentration, inorganic ion... Read More

Pyrimidine

Definition noun plural: pyrimidines py·rim·i·dine, py·rim·i·dine A heterocyclic aromatic compound that presents as... Read More

The Central Nervous System

Myelin Sheath Myelin is a substance that forms the myelin sheath associated with nerve cells. This sheath is a layer of... Read More