Search Results for: potential_gradient
Resting potential
Resting Potential Definition The resting potential of a cell is defined as the difference in electrical potential across... Read More
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
Depolarization
Depolarization is the removal of polarity by a process or action. It might also be used to describe how such activity leads... Read More
Generation of resting membrane potential
Stephen H. Wright Department of Physiology, College of Medicine, University of Arizona, Tucson, Arizona 85724... Read More
Chemiosmosis
Chemiosmosis Definition What is chemiosmosis? In biology, chemiosmosis refers to the process of moving ions (e.g. protons)... 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
Active transport
Active transport is a type of cellular transport in which substances (e.g. ions, glucose, and amino acids) are transported... 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
Cellular respiration
Cellular Respiration Definition What is cellular respiration in simple terms? Cellular respiration can be defined simply as... 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
Sarcolemma
Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... 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
Graded potential
Definition noun, plural: graded potentials A change in the electrical potential on the membrane of an excitable cell (e.g. a... 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
Circulation
Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More
Mitochondrion
Mitochondrion Definition What are mitochondria? The term “mitochondrion” comes from the two words of the Greek... Read More
Hyperosmotic
Hyperosmotic Definition What is hyperosmotic? The word hyperosmotic is derived from two Greek words: 'hyper', meaning... Read More
Homeostasis
Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... 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
Plasmolysis
Plasmolysis is the shrinking of protoplasm away from the cell wall of a plant or bacterium. The protoplasmic shrinking is... 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
Photosynthesis
Photosynthesis is a physio-chemical process carried out by photo-auto-lithotrophs by converting light energy into chemical... Read More
Biodiversity
The biological world or life on earth is a marvel that has amazed us since time immemorial. The rich natural diversity of... Read More
Photolysis
Photolysis Definition We define photolysis as a chemical process in which chemical compounds or molecules are split into... Read More
Simple squamous epithelium
Simple Squamous Epithelium Definition Simple squamous epithelium, also known as simple squamous epithelial tissue or... Read More
Ecosystem diversity
Ecosystem Diversity Definition What is ecosystem diversity? Ecosystem diversity deals with the study of different... Read More