Free Biology & Anatomy Resources & Research
This category at The Free Resource will include information, facts, and trusted resources about biology and the anatomy of the human body. Some of the topics that will be covered are genetics, the human body, the brain, and cognitive science.
How long does signal transduction in cells take?
Signal transduction in cells is a way for cells to communicate with each other. The term itself refers to the movement of signals from outside…
What are the mid-sternum lymph nodes?
Lymph nodes, found throughout the body, are small, round, kidney-shaped organs that are part of the immune system. They are linked by lymphatic vessels. Aside…
Where is somatotropin developed?
Somatotropin is a growth hormone that is produced naturally in humans and animals. Its function is to stimulate growth, cell reproduction and cell regeneration. Somatotropin…
How does luciferase transfection work?
Luciferase transfection is a method in genetic engineering whereby luciferase, a complex nucleic acid involved in a type of light-production in microorganisms and animals called…
How is the tree length in bootstrap phylogeny trees calculated?
Bootstrapping is used in biology in the field of systematics. Phylogenic or evolutionary trees are used in the process. The purpose is to determine confidence…
How does the digestive system interact with other systems?
All living organisms need energy in order to survive. Without a constant source of energy to replace expended energy, organisms will eventually die. Plants, for…
What is the difference between xylem and phloem?
The difference between xylem and phloem is that xylem transports water from the roots of a plant up through the plant whereas phloem transports nutrients,…
How are glycolysis and the citric acid cycle used in cellular respiration?
Cellular respiration is a complex biological process involving many elements. There has been considerable research on the process. All living organisms, plants, bacteria, animals and…
Stromatolites and the Period In Which They Declined
Stromatolites are structures of layered sediment formed by microorganisms. They come in many shapes such as conical, stratiform, branching, domal and columnar types. Most stromatolites…
Metabolic Process and Oxidative Phosphorylation
Oxidative phosphorylation occurs in the aerobic metabolic process. Oxidative phosphorylation is a metabolic pathway (a series of chemical reactions occurring within a cell) that uses…
The Epiglottis and How It Helps Maintain Homeostasis
The epiglottis is a leaf-like flap of cartilage and membrane. It is made up of connective tissue and elastic cartilage and is located at the…
Protists: Methods of Locomotion Used By Protists
A protist is an organism belonging to the Kingdom Protista. The Kingdom Protista includes a diverse array of organisms, numbered in the estimated range of…
F12K Cell Culture Media
A cell is the smallest unit of life. All living things are made up of either single or multiple cells. Single, or prokaryotic, cells are…
List of Plants that are Used as Biological Indicators
Biological indicators, which are also called bioindicators, are used to determine dangers that are to be found in the environment but may remain undetected. By…
Endoplasmic Reticulum Functions and Resources
What is the Endoplasmic Reticulum The endoplasmic reticulum (ER) is found in eukaryotic cells, those cells possessing a nucleus. It is an extensive labyrinth made…
How Mutations Affect Protein Synthesis
In order to understand how mutations affect protein synthesis, it is important to understand the process by which proteins are made (synthesized) and what a…
Chromosomes: Structure, Function, Number and Resources
Chromosomes are the structures that carry the genetic information in a cell. In eukaryotes, chromosomes are found in the cell nucleus and are made up…
Lactose Intolerance: Causes, Symptoms, and Resources
How is Lactase Produced by the Body? Lactase is an intestinal enzyme in mammals that controls the breakdown of lactose (milk sugar) into simpler sugars….
The Difference Between Exocytosis and Endocytosis
What is Exocytosis Exocytosis is a process in which a cell sends material inside secretory vesicles to be expelled from the cell via the cell…
Is There Cytoskeleton In the Arms Of Actinosphaerium
What is a Cytoskelton and How is Cytoskeleton Made? Every life form is made up of cells, or at least one cell. Most cells, such…
The Difference Between Polygenic and Pleiotropy
When multiple (poly) genes unite to result in a single phenotype, this is called “polygenic inheritance.” Examples of traits that are produced by multiple genes…
Protein Structures that are Changed By Heating a Protein
Proteins are large molecules consisting of one or more chains of up to 20 different types of amino acids; these chains fold into a three-dimensional…
Galactose: Facts, Functions, Formula, and Resources
What is Galactose and What Are The Functions of Galactose Galactose is a simple sugar, or monosaccharide (one sugar), which is found in many foods…
Central Nervous System: Functions, Disorders, and Resources
What is the Central Nervous System The central nervous system is that part of the nervous system that consists of the brain and spinal cord….
Ribonucleic Acid (RNA): Its Role in Protein Synthesis
What is RNA? Nucleotides are molecules that join together to make up the structural units of ribonucleic acid (RNA) and deoxyribonucleic acid (DNA). Each nucleotide…
Genes: Genes On The X or Y Chromosome
A gene is a unit of heredity in a living organism. Each cell in the human body contains between 2,500 and 25,000 genes. These genes…
Bones, Facts, and Resources About the Skeletal System
Facts and Trivia About The Human Skeleton The human skeleton consists of both fused and individual bones supported and supplemented by ligaments, tendons, muscles and…
Vasodilation: Why The Skin Turns Red During Exercise
What is Vasodilation? Why does a person’s skin flush or become red when he or she is in the midst of a medium to high…
The Genetics of Human Eye Color Inheritance
Eye Colors in Humans Human eyes are usually classed as being either brown, blue or green/hazel, but there is a huge variety of shades and…
How Cortisone Travels to the Dermis of the Skin.
What is Cortisone? Cortisone is an adrenocorticoid hormone which occurs naturally and is produced through the secretion of the adrenal cortex, adrenal glands and the…
Polymerase Chain Reaction (PCR): Technology, Uses, and Resources
What is PCR? The polymerase chain reaction, or PCR, is a method used in molecular biology and genetics laboratories to amplify specific regions of DNA. …
Autonomic Nervous System: Facts and Resources About ANS Disorders
What is the Autonomic Nervous System? The autonomic nervous system (ANS) is the component of the central nervous system responsible for regulating most of the…
Chemoreceptor and Baroreceptor: Facts and Resources
What is a Chemoreceptor? The survival of any organism is dependent on the detection of inputs from the environment. Internal chemical events result when these…
Recombinant DNA (rDNA): Technology, Plasmids, and Resources
DNA Basics DNA (or deoxyribonucleic acid) is the molecule that carries genetic information. It is part of a class of molecules commonly referred to as…
Bipedalism: Evolution, Theories, Facts, and Resources
What is Bipedalism Bipedalism means walking upright on two feet rather than on four feet, or on the hands and feet. Fossil evidence shows that…
Small Intestine: Functions, Diseases, and Resources
What is the Small Intestine and What Does It Do? The small intestine is the part of the digestive tract that extends from the stomach…
Digestive System: Information, Facts, and Resources
How does the digestive system work? The digestive system consists of a digestive tract, which is a chain of hollow organs linked in a twisted…
Peptides and Polypeptides: Information and Resources
At the most simplistic level, peptides are strings or chains, of two or more amino acids that have bonded together. What are amino acids? Amino…
The Genetic Code: History, Facts, and Resources
The genetic code is a set of complex instructions that are coded into all genetic materials, including DNA and mRNA. These detailed instructions tell the…
10 Weird Facts About the Human Body
There are many things that are commonly known about the human body and its inner workings, but what about facts that are not so known?…
The Brain: Resources About the Brain and Its 3 Sections
The brain is the most complex organ in the human body. It is responsible for what people say, do and think. The brain and its…
Cognitive Science Resources For Students, Teachers, and Kids
Cognitive science is the study of the brain and how it processes work. It also looks at intelligence and the ways in which a person…
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