Search Results for: oxygen
Great Oxygenation Event
Great Oxygenation Event Definition The Great Oxygenation Event is defined as the surge of dioxygen (O2) levels in the... Read More
Reactive oxygen species
Definition noun Chemically reactive molecules and ions of oxygen with an unpaired electron Supplement Reactive oxygen... Read More
Dissolved oxygen
Definition noun The amount of free oxygen dissolved in water, expressed in mg/L, parts per million (ppm), or in percent of... Read More
Aerotolerant
Aerotolerant Definition The term "aerotolerant" pertains to an organism that does not require oxygen for growth but can... Read More
Obligate aerobe
Before we define obligate aerobes, let us first understand and define aerobic organisms. Aerobic organisms are those that... Read More
Facultative anaerobe
Facultative Anaerobe Definition What does facultative anaerobe mean? Facultative organisms are the most adaptable... Read More
Aerobic bacteria
Aerobic Bacteria Definition What does aerobic mean in biology? As the name suggests, 'aerobe' in biology means organisms... Read More
Erythrocyte
Erythrocyte Definition Erythrocytes (red blood cells or RBCs) are the myeloid series of specialized cells that play an... Read More
Photosynthesis
Photosynthesis is a physio-chemical process carried out by photo-auto-lithotrophs by converting light energy into chemical... Read More
Anaerobic bacteria
Bacteria are classified according to the need for oxygen to survive and grow. For example, aerobic bacteria are bacteria... Read More
Oxygen Debt
A cumulative deficit of oxygen resulting from intense exercise; the deficit must be made up when the body returns to rest.A... Read More
Anaerobic respiration
Anaerobic Respiration Definition What is anaerobic respiration? Anaerobic (cellular) respiration is a respiratory process... Read More
Respiration
Organization of the Respiratory System Each lung is composed of air sacs called alveoli - the sites of gas exchange with... Read More
Plant Metabolism
Introduction Plants are responsible for incredible feats of molecular transformation. The processes are always being... Read More
Fermentation
Fermentation Definition What is fermentation? Fermentation is the breaking down of sugar molecules into simpler compounds... Read More
Cellular respiration
Cellular Respiration Definition What is cellular respiration in simple terms? Cellular respiration can be defined simply as... Read More
Oxygen deficit
oxygen deficit The difference between oxygen uptake of the body during early stages of exercise and during a similar... 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
Chemical Composition of the Body
In order to fully understand the mechanisms of human physiology, it is important to have an understanding of the chemical... 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
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
Photolysis
Photolysis Definition We define photolysis as a chemical process in which chemical compounds or molecules are split into... Read More
Carbon dioxide
Carbon Dioxide Definition noun, car·bon di·ox·ide, /daɪˈɒksaɪd/ (biochemistry) An inorganic compound, with the... Read More
Oxyhemoglobin
Definition noun, plural: oxyhemoglobins A bright red hemoglobin carrying oxygen molecule Supplement One of the main... Read More
Abiotic Factors – Water Conditions
Evidently, the light and heat from the sun play an important role in providing suitable conditions. However, the water... Read More
Covalent bond
Covalent Bond Definition What is a covalent bond? In chemistry and other fundamental science fields, a covalent bond is... Read More
Chlorophyll
Why are most plants green? Have you ever had the same question? Perhaps, you’ve been told that the plants are green... Read More
Circulation
Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More
Carbohydrate
Carbohydrate Definition A biomolecule refers to any molecule that is produced by living organisms. As such, most of them... Read More
Microaerophile
Definition noun, plural: microaerophiles An organism that lives in environment that only has a low level of... Read More