Condensation: Definition and Example
Condensation Definition Condensation has multiple meanings in the field of biology. A condensation reaction is when two smaller molecules join to form a larger one by removing …
Biochemistry
What is the Intrinsic Factor?
Definition Intrinsic factor is produced by specialized mucosa cells called oxyntic cells located in the stomach lining. It is essential for the uptake of vitamin B12 at the …
Photoautotroph: Definition, Types, and Function
Photoautotroph Definition Photoautotrophs are organisms that can make their own energy using light and carbon dioxide via the process of photosynthesis. The word photoautotroph is a …
Carotenoids: Definition, Types and Function
Carotenoids Definition and Function Carotenoids are a type of accessory pigment, created by plants to help them absorb light energy and convert it to chemical energy. …
Auxin: Definition, Structure, and Function
Auxin Definition An auxin is a plant hormone derived from the amino acid tryptophan. An auxin may be one of many molecules, but all auxin molecules are involved in …
What is Ammonification?
Ammonification Definition Ammonification is part of the five-step nitrogen cycle, which is crucial for providing living organisms with the essential nitrogen that they need. Ammonification itself …
Substrate: Definition and Example
Substrate Definition A substrate is a molecule acted upon by an enzyme. A substrate is loaded into the active site of the enzyme, or the place that allows weak …
Simple Diffusion: Definition and Example
Simple Diffusion Definition Simple diffusion is the process by which solutes are moved along a concentration gradient in a solution or across a semipermeable membrane. Simple diffusion is carried out by the …
Signal Transduction: Definition, Pathway, and Example
Signal Transduction Definition Signal transduction is the process of transferring a signal throughout an organism, especially across or through a cell. Signal transduction relies on proteins known …
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Semipermeable Membrane: Definition and Example
Semipermeable Membrane Definition A semipermeable membrane is a layer that only certain molecules can pass through. Semipermeable membranes can be both biological and artificial. Artificial …