29 results found

Search Results for: assistance

Diffusion

Diffusion Definition Diffusion is the net passive movement of molecules or particles from regions of higher to regions of... Read More

Simple diffusion

Diffusion is essential in the anatomy and physiology of a living thing, especially with regard to homeostasis. It is one of... Read More

Ventilation

Ventilation Definition Often when persons think of ventilation, they think of getting clean or enough air into a room. This... Read More

Coenzyme

Enzymes can break down complicated large molecules into simpler smaller ones, they can combine small molecules or atoms to... Read More

RNA-DNA World Hypothesis?

How did life start as we know it? In the scientific community, the "RNA World Hypothesis" has many adherents. Many believed... Read More

Biological Cell Introduction

It only takes one biological cell to create an organism. In fact, there are countless species of single-celled organisms,... Read More

Plant Metabolism

Introduction Plants are responsible for incredible feats of molecular transformation. The processes are always being... Read More

Transcription (biology)

In biology, transcription is the process of transcribing or making a copy of the genetic information stored in a DNA strand... Read More

Passive transport

Passive transport is a type of cellular transport in which substances such as ions and molecules move down their respective... Read More

Nucleosome

Nucleosome Definition Every organism is made of deoxyribonucleic acid, also known as DNA. DNA is made up of numerous... 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

Facilitated diffusion

Facilitated diffusion is the transport of substances across a biological membrane from an area of higher concentration to an... Read More

Osteocyte

Osteocyte Definition The osteocyte is a mature bone cell. Other bone cell types are osteoprogenitor cells, osteoblasts, and... Read More

Pollen Grain

What are Pollen Grains? Plants are unique structures and so they carry out mechanisms in special ways. Fertilization in... Read More

Process

Process Definition What is a process? In biology, a process (plural: processes) means any of the various biological... Read More

Protein synthesis

Protein synthesis is the process of creating protein molecules. In biological systems, it involves amino acid synthesis,... Read More

Operation

operation 1. The act or process of operating; agency; the exertion of power, physical, mechanical, or moral. The pain and... Read More

Active transport

Active transport is a type of cellular transport in which substances (e.g. ions, glucose, and amino acids) are transported... Read More

Adhesion

Adhesion Definition Adhesion is the binding or attraction between dissimilar molecules, atoms, surfaces, or substances. The... Read More

Lanugo

What is Lanugo? Lanugo is the delicate and downy hair that covers a fetus within the uterus (womb). It is very fine hair.... Read More

Parenchyma

Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More

Hermaphrodite

We all know that typically living organisms are divided into two main categories of sex-based on their biological structure.... Read More

Transport

In biology, transport refers to the act or the means by which a molecule or ion is moved across the cell membrane or via the... Read More

Definitive host

Different Biological Relationships The biological world is interconnected whether we notice it or not. All the life forms... 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

Vacuole

A vacuole is a single membrane-bound organelle with no definite shape or size found in both prokaryotic and eukaryotic... Read More

Remedies

remedy 1. That which relieves or cures a disease; any medicine or application which puts an end to disease and restores... Read More

Organ

Definition Of Organ An organ is a collection of tissues that carries out a function or set of related ones. An organ often... Read More

Gene Regulation in Eukaryotes

Reviewed by: Mary Anne Clark, Ph.D. Eukaryotic Gene Structure In prokaryotes the DNA is located in the... Read More