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Stack #4626230
| Term | Definition |
|---|---|
| Cell | Cell is a premier peer-reviewed scientific journal publishing high-impact research across all life sciences |
| Osmosis | Cell is a premier peer-reviewed scientific journal publishing high-impact research across all life sciences |
| Cell Theory | Cell theory states that all living things are composed of cells, cells are the basic unit of life, and all cells come from pre-existing cells |
| Cell Wall | A cell wall is a tough, protective outer layer outside the cell membrane that provides structural support |
| Cell Membrane | The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell |
| Nucleus | A nucleus is the central, vital part of something, most commonly referring to the cell nucleus, the control center holding DNA |
| Organelle | Organelles are like tiny organs inside a cell, each with a specific job, such as making energy (mitochondria) |
| Ribosome | A ribosome is a tiny cell component, often called the cell's "protein factory," that builds proteins by translating genetic instructions (mRNA) into chains of amino acids |
| Nucleic Acid | Nucleic acids are essential biomolecules (like DNA and RNA) that store, transmit, and express genetic information, acting as the blueprints for all living things |
| Selectively Permeable | A selectively permeable membrane is a biological barrier, such as a cell membrane, that allows specific ions and molecules to pass through while restricting others |
| Cytoplasm | Cytoplasm is the jelly-like substance filling a cell, enclosed by the cell membrane but outside the nucleus (in eukaryotes) |
| Mitochondri | Mitochondria (singular: mitochondrion) are membrane-bound organelles found in the cytoplasm of almost all eukaryotic cells, acting as the "powerhouse of the cell" |
| Endoplasmic Reticulum | The endoplasmic reticulum (ER) is a vast, interconnected network of membrane-enclosed sacs (cisternae) and tubules found in the cytoplasm |
| Golgi Apparatus | The Golgi apparatus, or Golgi complex, is a cell organelle that processes and packages proteins and lipids for transport, modifies them through processes like glycosylation |
| Chloroplast | A chloroplast is a specialized, double-membrane organelle (plastid) found in plant and algae cells that conducts photosynthesis |
| Lysosome | A lysosome is a tiny, membrane-bound sac in a cell that acts as the cell's "recycling center" or "digestive system |
| DNA | DNA, or deoxyribonucleic acid, is the molecule that carries the genetic instructions for the development, functioning, growth |
| Passive Transport | Passive transport is the, energy-independent movement of substances across cell membranes along a concentration gradient (high to low concentration) |
| Active Transport | Active transport is the energy-dependent process of moving molecules or ions across a cell membrane against their concentration gradient |
| Diffusion | Diffusion is the natural, passive movement of particles (atoms, molecules, ions) from a high-concentration area to a low-concentration area, spreading out until evenly distributed |
| Tissue | tissue is a group of similar cells and their extracellular matrix, originating from the same embryonic layer, that work together to perform specific, specialized functions in organisms |
| Organ | An organ is a collection of different tissues in a living thing (like a heart, lung, or leaf) that work together as a functional unit to perform a specific job |
| Organ System | An organ system is a group of organs working together to perform complex, specialized functions for an organism |
| Endocytosis | Endocytosis is a cellular process where the plasma membrane engulfs external materials to form vesicles, bringing substances |
| Exocytosis | Exocytosis is an active transport process where cells use energy to export large molecules, such as proteins and neurotransmitters, by fusing intracellular vesicles with the plasma membrane |
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