66 results found

Search Results for: active site

Active site

Definition noun, plural: active sites The specific region of an enzyme where a substrate binds and catalysis takes place or... Read More

Enzyme

An enzyme is a biomolecule that can be synthesized biologically (naturally occurring) or through other processes... Read More

Protein Activity and Cellular Metabolism

Protein Binding Sites The ability of various molecules and ions to bind to specific sites on the protein surface forms the... Read More

Substrate

Substrate Definition What is a "substrate"? The underlying substances or layers are termed as substrate. The definitions of... Read More

Lock-and-key model

Lock-and-key model Definition Lock-and-key model is a model for enzyme-substrate interaction suggesting that the enzyme and... Read More

Induced fit model

Induced-Fit Model Definition The induced-fit model is a model for enzyme-substrate interaction to describe that the... 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

Denaturation

Denaturation Definition In biochemistry, denaturation is defined as a process in which a molecular structure deviates from... Read More

Allele

Allele Definition What are alleles? An allele is a term coined to describe a specific copy of a gene. Genes, the DNA... Read More

Apoenzyme

Enzymes are biological catalysts that can increase the rate of chemical reactions in living organisms. Enzymes can only... 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

Metabolism

Metabolism Definition What is metabolism in the body? Metabolism encompasses the various biochemical processes, reactions,... Read More

Ribosome

A biological cell is composed of many components called organelles. These organelles serve their specific purposes to make... Read More

Exudate

What is an exudate? The inflammation or injury in a tissue result in increased permeability of the blood vessels that... Read More

Silent mutation

A mutation is a change in the nucleotide sequence of a gene or a chromosome. When there is only one nucleotide involved, it... Read More

Muscle

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

Zymogen

Definition noun, plural: zymogens An inactive enzyme precursor that requires a biochemical change to become active or... Read More

Coenzyme

Enzymes can break down complicated large molecules into simpler smaller ones, they can combine small molecules or atoms to... Read More

Photosynthesis

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

Fibroblast

The building block of living things is known as the cell. The cell contributes to many parts and functions of different... Read More

Intermediate host

Intermediate Host Definition When looking at the relationships amongst different biological members of our biosphere, we... Read More

Pyruvic acid

What is Pyruvic Acid? Pyruvic acid is an organic acid that occurs as an intermediate in many metabolic processes. It occurs... Read More

Zymogen granules

Definition noun The granules in the cytoplasm of secretory cells containing the zymogen Supplement Zymogen granules are... Read More

Reverse passive agglutination

Definition noun A type of agglutination reaction in which known antibody is bound to a carrier particle instead of the... Read More

Nucleosome

Nucleosome Definition Every organism is made of deoxyribonucleic acid, also known as DNA. DNA is made up of numerous... Read More

Genetic Information and Protein Synthesis

Genetic Code Genes are sequences of DNA nucleotides that carry and transmit the information specifying amino acid sequences... 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

Protein

Protein Definition Proteins are biomolecules comprised of amino acid residues joined together by peptide bonds.... Read More

Gap 2-M DNA damage checkpoint

Definition noun (cell biology) A control mechanism in G2 phase of the cell cycle that ensures the cell is ready for cell... Read More

Ligase

An enzyme is a catalyst or a chemical produced by cells to speed up a biochemical reaction. It is usually a protein molecule... Read More

Humoral immunity

Let’s get to know where one should place humoral immunity, the topic of today’s discussion!! By the end of the article,... Read More

Group translocation

Group Translocation Definition Just like your “home” is a private place where you and your comfort are maintained due... Read More

Cell Structure

The interior of the cell is divided into the nucleus and the cytoplasm. The nucleus is a spherical or oval-shaped structure... Read More

Plant Meristems and Growth

A common mistake that many people assume is that an increase in size means an increase in growth. This is not the case.... Read More

Plant Cells vs. Animal Cells

Plant Cells Most cells are not visible with the naked eye. However, with microscopes of various types, plant cells can be... 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

Genetic Control – On and Off Genes

Reviewed by: Mary Anne Clark, Ph.D. This lesson looks at the various factors involved that affect growth and... Read More

Nucleoplasm

Definition noun plural: nucleoplasm nu·cle·o·plasm, ˈnjuːklɪəˌplæzəm (cell biology) The protoplasm of the... Read More

Zinc

zinc (Science: chemistry, element) An essential trace element being an essential component of the active site of a variety... Read More

Catalysis

Definition noun, plural: catalyses The causing of the acceleration of a chemical reaction induced by a... Read More