66 results found

Search Results for: potential energy

Light-dependent reaction

Many organisms, such as green plants, convert light energy into chemical energy through the mechanism of photosynthesis. In... Read More

Potential energy

potential energy (Science: chemistry) energy due to position, it is stored energy which can be used to do work. The... Read More

Cellular respiration

Cellular Respiration Definition The main function of cellular respiration is to break down glucose to form energy. What is... Read More

Catabolism

Catabolism Definition Catabolism is the branch of the metabolic process that breaks down complex, big molecules into... Read More

Energy coupling

What is Energy Coupling? Work, whether it be physical or biological, requires energy to be expended. In biological... 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

Chemiosmosis

Chemiosmosis Definition What is chemiosmosis? In biology, chemiosmosis refers to the process of moving ions (e.g. protons)... Read More

Axon hillock

Axon Hillock Definition What is axon hillock? If you are familiar with the different parts of the neuron, the axon hillock... Read More

Generation of resting membrane potential

Stephen H. Wright Department of Physiology, College of Medicine, University of Arizona, Tucson, Arizona 85724... Read More

Energy

Reviewed by: Todd Smith, PhD Definition noun, plural: energies (1) The capacity for work. (2) The ability to do... Read More

Fecundity

Fecundity Definition The meaning of fecundity is the reproductive rate (fecundity rate) or the performance of an individual... Read More

Photolysis

Photolysis Definition We define photolysis as a chemical process in which chemical compounds or molecules are split into... Read More

Redox reaction

Redox Reaction Definition What are redox reactions? This is a common term in chemistry and biology. In chemistry, a redox... Read More

Carrier protein

Carrier protein is a type of cell membrane protein involved in facilitated diffusion and active transport of substances out... Read More

Simple diffusion

Simple Diffusion Definition What is simple diffusion? In biology, simple diffusion is a form of diffusion that does not... Read More

Mitochondrion

Mitochondrion Definition What are mitochondria? The term “mitochondrion” comes from the two words of the Greek... Read More

Trophic level

In ecology, a trophic level pertains to a position in a food chain or ecological pyramid occupied by a group of organisms... Read More

Water in Plants

The movement of molecules, specifically water and any solutes, is vital to understand in light of plant processes. This will... Read More

Muscle

Muscle cells are specialized to generate force and movement. There are three types of muscle tissue: (1) skeletal muscle,... Read More

A Balanced Diet – Carbohydrates and Fat

Alongside the numerous vitamins that are required as part of a healthy diet, we must also eat food containing a variety of... Read More

Living things

Living Things Definition A living thing pertains to any organism or a life form that possesses or shows the characteristics... Read More

Sensory Systems

A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal and... Read More

Chemical energy

Definition noun Energy released from a substance, or absorbed in the formation of a chemical compound, during a chemical... Read More

Evolution of Life – Ancient Earth

Continuing from the previous tutorial investigating the origins of life on Earth.... Life began to flourish, and the... Read More

Concentration gradient

Concentration gradient definition Concentration gradient refers to the gradual change in the concentration of solutes in a... Read More

Movement of Molecules Across Cell Membranes

Diffusion Diffusion is essentially the movement of molecules from a region of higher concentration to a region of lower... Read More

Predation

In ecology, predation is a mechanism of population control. Thus, when the number of predators is scarce the number of... 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

Oxidation

Oxidation Definition How do we define oxidation? There are several definitions of the oxidation process. Oxidation can be... Read More

Biology

Biology Definition Biology is the branch of science that primarily deals with the structure, function, growth, evolution,... Read More

Smooth muscle

The smooth muscle can be described as a type of muscle in the human body that is non-striated and involuntary in action.... Read More

Actions of Caffeine in the Brain with Special Reference to Factors That Contribute to Its Widespread Use

IV. Actions of Caffeine on Brain Functions and Behavior Having discussed the molecular and neuronal actions of caffeine,... Read More

Symbiosis

Symbiosis Definition What is symbiosis? Symbiosis can be defined as any kind of relationship or interaction between two... Read More

Involuntary muscle

A muscle act typically either under the control of the will or without conscious control. Muscles that can be controlled at... Read More

Roughage

Definition noun plural: roughages rough·age, ɹʌf'ɪdʒ (1) A dietary fiber (2) Hay or any other coarse feed, such as... Read More

Lights’ Effect on Growth

Plants are the primary producers of energy in any ecosystem, meaning that they bring in new energy to it which supports... Read More

Non-living thing

A non-living thing in biology means any form without life, such as an inanimate body or object. Compared with the entity... Read More

Cell

A cell is a membrane-bound structure that occurs as a functional independent unit of life (such as in unicellular organisms,... Read More

photobiology

Photobiology Definition Photobiology, the biology of light, is a subdiscipline in biology. It focuses on the effects of... Read More

Calorie

Definition noun, plural: calories (1) Gram calorie: unit of heat energy that is equal to the amount of heat needed to... Read More