Meristematic Tissue- Definition and Function

Meristematic Tissue- Definition and Function

Introduction Meristematic tissue is any plant tissue that consists of undifferentiated cells that can undergo rapid cell division. These rapidly growing tissues are found at the tips or apices of plant organs. They are responsible for producing new cells and tissues required by growing plants, such as buds, roots, leaves, and flowers. Meristematic tissues are…

Active vs. Passive Transport-Overview, Examples, and ATP

Active vs. Passive Transport-Overview, Examples, and ATP

Introduction The movement of materials across the cell membrane is broadly divided into active and passive transport. During active transport, a substrate moves against its concentration gradient (uphill) through the action of energy expenditure. In passive transport, no energy is required. The Semi-permeability of the Cell Membrane Figure: The semi-permeable cell membrane The semi-permeability of…

Active Transportation in Biology- Processes & Energy Sources

Active Transportation in Biology- Processes & Energy Sources

Introduction Active transport is the movement of objects or organisms by self-exerted force. It is opposed to passive transport, which is a movement with an external source of work. In biology, active transport is the movement of molecules through a medium, usually the cell membrane. Multicellular organisms use several active transport mechanisms to transport substances…

Translation in Biology- Steps, Purpose, & Products

Introduction Gene translation is how a nucleic acid sequence (mRNA) is converted into an amino acid sequence. Translation occurs in all organisms in archaea, prokaryotes, and eukaryotes. The purpose of translation is to turn a nucleic acid sequence into an amino acid sequence. This process will create a protein that the cell can use to…

Prokaryote’s Bacteria Structure and Cell Capsule Function

Introduction A prokaryote is any organism whose genetic information is not enclosed within a membrane-bound nucleus. Prokaryotes may have one or many cells. They are genetically simpler than eukaryotes (usually have a membrane-bound nucleus) and have no membrane-bound organelles. They reproduce through cell division and consist of a single chromosome in a circular DNA molecule….

Phosphate Group- Structure, Formula, & Role in DNA

Phosphate Group- Structure, Formula, & Role in DNA

Introduction Phosphate Group Structure The phosphate group is a chemical structure that consists of one phosphorus and four oxygen atoms. It can be represented by the symbol PO4. The phosphate group is found in many places, including DNA, ATP, phospholipids, and other biomolecules. Image: Phosphate group structure One phosphate group in the structure is a…

Nitrogenous Wastes-Definition, Examples, and Production

Nitrogenous Wastes-Definition, Examples, and Production

Introduction Nitrogenous wastes refer to the nitrogen-derived compounds that are excreted from living organisms. These are broadly classified as urea, uric acid, and ammonia. There is a distinction between uric acid and ammonia, as ammonia comes out in a gaseous state while the other two are dissolved in water. While the gaseous waste is excreted…

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