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What is a zygote?

Zygote refers to the cell that is formed when the female egg cell joins the sperm cell that fertilized it.  In simple terms, the zygote represents the fertilized egg.  For humans and other organisms that contain multiple cells, the fertilized egg or zygote is the earliest part of the so-called embryo. This embryo will then [...]

What is an action potential?

Action potential refers to a process or activity that happens in various cell neurons. Similar to an electrical activity or impulse, action potentials in cells involves rapid rise and fall of the cell’s charge. When an action potential happens, an electric signal is literally transmitted from one part of the cell to another. These signals [...]

What is axonal transport?

Axonal transport refers to a cellular process that involves movement of various substances from one part of the cell to another via the axoplasm.  Various cell parts like the mitochondria, lipids, and proteins are transported through the axon in either antegrade or retrograde directions.  The movement of these components are part of the normal processes [...]

What is diploid?

“Diploid” refers to cells that contain two sets of chromosomes.  Each set of these chromosomes are exactly the same with the other cell.  The prefix “di” in “diploid” means “two,” and this refers to the two sets of chromosomes.  As for human beings and animals, most cells in the body are classified as diploid cells. [...]

What are Eukaryotes and Prokaryotes?

Eukaryotes and Prokaryotes: What are they? Learning about cells can be quite interesting. These things can amaze you at some point. You will learn a lot of things and who knows? You might discover another great achievement in science. You could be the next Theodore Schawann, Mathiass Schleidan or Rudolf Virchow. But first, you must [...]

What is a Cell?

What is a Cell? A cell is the smallest and most fundamental unit of all living organisms like plants and animals. It is made up of atoms which have specific functions and carry all the necessary nutrients for the living organism to function normally. Some living organisms contain only one cell. Bacteria are an example [...]

What is a Eukaryote?

What is a Eukaryote? A Eukaryote is a classification of cells that have both a nucleus and organelles. The unicellular organism is identified by its membrane-bound nucleus. The organelles that make up the inside of the cell are also membrane-bound. Structures such as mitochondrion, intracellular filaments, and Golgi bodies perform the various tasks that they [...]

What is Cancer?

Cancer can be defined as a disease where abnormal cells multiply and divide uncontrollably, causing the growth of lumps or tumors. These tumors normally grow and interfere with the normal functioning of the body systems and organs. Tumors will also sometimes be the source of hormones that are harmful to the body and reduce the [...]