68 results found

Search Results for: block

Cytoplasm

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

Nucleotide

Nucleotide Definition A nucleotide is regarded as the basic building block of nucleic acid (e.g. DNA and RNA). A nucleic... Read More

Freshwater Communities & Lentic Waters

Lentic (still water) communities can vary greatly in appearance, anything from a small temporary puddle to a large lake is... Read More

Phagocytosis

Phagocytosis Definition Phagocytosis is a basic physiological cellular process wherein a cell ingests a solid particle... Read More

Buck’s traction

Buck's Traction Definition Buck's traction for femur fracture is very helpful. It can be utilized in the treatment and... Read More

Filtration

Filtration Definition What is filtration? Filtration is separating a solid from a fluid through a porous material that... Read More

Pollution in Freshwater Ecosystems

As with all ecosystems, the existence and operations of human society inevitably have an effect on the way of life in a... Read More

Cellular respiration

Cellular Respiration Definition What is cellular respiration in simple terms? Cellular respiration can be defined simply as... Read More

Polymorphism

Polymorphism Definition The occurrence of two or more different forms or morphs in the population of a species is referred... Read More

Muscular system

Muscular System Definition What is the muscular system? The muscular system is a system that includes muscle cells and... Read More

"Mummified" Dinosaur Discovered In Montana

By Hillary Mayell An onsite restoration drawing of how "Leonardo" may... Read More

Ribonucleotide

Definition noun plural: ribonucleotides ri·bo·nu·cle·o·tide, ˌraɪbəʊˈnjuːklɪəˌtaɪd A form of nucleotide in... Read More

Sarcolemma

Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... 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

Cytology

The biological world is so diverse that studying it under a single umbrella as a subject is next to impossible. Hence,... Read More

Analog

Analog 1. One of two organs or parts in different species of animals or plants which differ in structure or development but... Read More

Adenosine

Definition noun plural: adenosines a·den·o·sine, əˈdɛn əˌsin A purine nucleoside that has adenine bound to a... Read More

Fertilization membrane

Definition noun The membrane that forms on the inner surface of the vitelline membrane of the ovum after the entry of a... Read More

Laminarin

Definition noun, plural: laminarins A storage polysaccharide that is found in brown algae which is purely made up of... Read More

Gregor Mendel

Definition noun Augustinian monk and botanist who formulated the laws of heredity based on his careful breeding... Read More

Vertebra

Definition noun, plural: vertebrae, vertebras Any of the irregular bony structure with some hyaline cartilage that make up... Read More

Polynucleotide

Definition noun plural: polynucleotides pol·y·nu·cle·o·tide, ˌpɒlɪˈno͞o′klē-ə-tīd A biopolymer comprised of... Read More

Sclerotome

Definition noun, plural: sclerotomes (embryology) The somite that gives rise to the development of vertebrae and... Read More

Dehydration reaction

What is dehydration synthesis? A dehydration reaction is a form of biochemical reaction wherein a water molecule is lost or... Read More

Adenine nucleotide

Definition noun plural: adenine nucleotides A nucleotide wherein the nucleobase is adenine Details Overview A nucleotide... Read More

Deoxyribonucleotide

Definition noun plural: deoxyribonucleotides de·ox·y·ri·bo·nu·cle·o·tide, diˌɒk... Read More

Mononucleotide

Definition noun plural: mononucleotides mon·o·nu·cle·o·tide, ˌmɒnəʊˈnjuːklɪəˌtaɪd A single nucleotide (as... Read More

Neural Control Mechanisms

Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More

Human Reproduction

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

Inheritance and Probability

Reviewed by: Mary Anne Clark, Ph.D. Gregor Mendel, an Austrian monk, is most famous in this field for his study... Read More

Dominance

Reviewed by: Mary Anne Clark, Ph.D. The previous tutorial investigated Gregor Mendel and how he found trends in... Read More

Photosynthesis – Photolysis and Carbon Fixation

Photosynthesis is the means that primary producers (mostly plants) can obtain energy via light energy. The energy gained... Read More

Newly Discovered Exploding Ants – Colobopsis explodens

A new ant species, Colobopsis explodens, was recently identified. Similar to other exploding ant species, Colobopsis... Read More

Genetics – Lesson Outline & Worksheets

  Topics Modules Quizzes/Worksheets Description Introduction to Genetics Genetics - Definition:... Read More

Repressor protein

Definition noun, plural: repressor proteins A protein in which its binding to the operator inhibits the transcription of one... Read More

Alanine

What is alanine? Alanine is a non-essential amino acid. There are two types of amino acids for mammals namely essential and... Read More

Dinucleotide

Definition noun plural: dinucleotides di·nu·cle·o·tide, daɪ njuːklɪəˌtaɪd An organic compound comprised of two... Read More

Vent

vent To snuff; to breathe or puff out; to snort. Origin: Cf. F. Venter to blow, vent wind (see Ventilate); but prob... Read More

Substance

Substance Definition What is a substance? The word substance finds varied usages in different science fields. In general... Read More

Tail

tail 1. (Science: zoology) The terminal, and usually flexible, posterior appendage of an animal. The tail of mammals and... Read More