28 results found

Search Results for: proton gradient

Concentration gradient

What is a concentration gradient? A gradient is a measure of how steep a slope is. Thus, a concentration gradient would be... Read More

Chemiosmosis

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

Proton gradient

Proton gradient in biology, the proton gradient may be used as an intermediate energy source for heat and flagellar... 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

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

Hydrogen

Hydrogen is one of the chemical elements found in nature. A chemical element refers to the pure substance of one type of... Read More

Hydrogen-transporting ATP synthase

Definition noun A membrane enzyme that allows the diffusion of protons (hydrogen ions) through its proton channel component... Read More

ATP synthase

Definition noun, plural: ATP synthases An enzyme that catalyzes the formation of ATP from the phosphorylation of ADP with... 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

Photosynthesis

Photosynthesis is a physio-chemical process carried out by photo-auto-lithotrophs by converting light energy into chemical... Read More

Electron transport chain

Definition noun A group of compounds that pass electron from one to another via redox reactions coupled with the transfer... Read More

Chemiosmotic coupling

Definition noun The process that couples or links the electron transport chain to ATP synthesis. Supplement Chemiosmosis is... Read More

Light-dependent reaction

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

Gradient

Definition noun, plural: gradients (1) A slope, which may be upward or downward. (2) The degree of steepness or inclination,... Read More

Mitochondrion

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

Glycolysis

What is Glycolysis and Why is it Important? Glycolysis is a metabolic pathway by which the 6-carbon molecule of glucose is... Read More

Chemiosmotic hypothesis

Definition noun A theory postulated by the biochemist Peter Mitchell in 1961 to describe ATP synthesis by way of a proton... Read More

Chemiosmotic coupling hypothesis

Definition noun A theory postulated by the biochemist Peter Mitchell in 1961 to describe ATP synthesis by way of a proton... Read More

Chemiosmotic theory

Definition noun A theory postulated by the biochemist Peter Mitchell in 1961 to describe ATP synthesis by way of a proton... Read More

Photolysis

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

Oxidative phosphorylation

Definition noun A metabolic pathway that generates ATP from ADP through phosphorylation that derives the energy from the... Read More

Plant Metabolism

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

Ion

We have been introduced to ions in varied fields of Science like Physics, Chemistry, and Biology. This article takes you on... 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

Nematocyst

All organisms are composed of millions of cells. Many cells serve specific purposes and are specialized to do distinct... Read More

Coupled reaction

'''coupled reaction chemical reaction with a common intermediate in which energy is transferred from one side of the... Read More

Phosphorylation

Phosphorylation Definition We can define phosphorylation as a biochemical process in which a phosphate molecule is added to... 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