NLN Pax Biology Rated A+

NLN Pax Biology Rated A+ Cell ️smallest living unit and the basic unit of function and structure for all living things. Nucleus ️contains genetic information or DNA, controls the activities of the cell. DNA - ️Deoxyribonucleic Acid - genetic information. Plasma or Cell Membrane ️Semipermeable membrane that separates the contents of the cell from the surrounding fluids (interstitial fluid). Interstitial Fluid ️contains substances such as aminoacids, sugars, fatty acids, hormones, neurotransmitters and salts. Selectively permeable or semi permeable membrane ️refers to the selective nature of the plasma membrane. It contains pores and channels that allow only particles of the right size or right chemical nature to pass through. Additionally plasma membrane contains receptors that bind with specific substances, thus allowing special entry or signals to the cell to perform a certain activity. Cytoplasm ️Fluid matrix found between the plasma membrane and the nucleus that act as scaffolding for the organelles. Organelles ️or "little organs" are specialized units in the cell that perform certain functions. Mitochondria ️are the locations for cellular respiration that is the conversion of food to energy at the cellular level, thus the mitochondria are the sites of energy production and most of its ATP. ATP ️adenosine triphosphate - chemical the cell uses to store and transfer energy within itself. Ribosome ️site of protein synthesis in the cell. Endoplasmatic Reticulum(ER) ️serves as means of transport within the cell and is made up of many channels. Rough ER ️named for the fact that it has ribosomes on its surface, serves to store and deliver proteins made by the attached ribosomes. Smooth ER ️Free of ribosomes, found in a variety of cells, performs varying functions in different cells, including the storage of enzymes and minerals and the folding of proteins, among other things. It is thought to be involved in the detoxification of chemicals and the metabolism of fats. Golgi Complex ️modifies and packages proteins destined for use in the cell or for export from the cell. Lysosome ️sacs that contain strong digestive enzymes, responsible for digesting cell structures that are no longer living or that are malfunctioning and for digesting waste. Cell wall ️exclusive to plant cells and it involves the plant cells, essential for their protection, maintenance of shape and water balance. Chloroplast ️contains chlorophyll, which is necessary for photosynthesis. Vacuole ️large compartments in the cytoplasm that serve as places for secretion, excretion and