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¿Qué es la respiración celular?
Organisms harvest energy from food, but this energy cannot be directly used by cells. Cells convert the energy stored in nutrients into a more usable…
¿Qué es la glucólisis?
Cells make energy by breaking down macromolecules. Cellular respiration is the biochemical process that converts “food energy” (from…
Los pasos de glucólisis que requieren energía
Glucose is the source of nearly all energy used by organisms. The first step of converting glucose into usable energy is called glycolysis.…
Pasos de glucólisis liberadores de energía
While the first phase of glycolysis consumes energy to convert glucose to glyceraldehyde 3-phosphate (G3P), the second phase produces energy. The…
Resultados de la glucólisis
Nearly all the energy used by cells comes from the bonds that make up complex, organic compounds. These organic compounds are broken down into…
Oxidación de piruvato
After glycolysis, the charged pyruvate molecules enter the mitochondria via active transport and undergo three enzymatic reactions. These reactions…
El ciclo del ácido cítrico
The citric acid cycle, also known as the Krebs cycle or TCA cycle, consists of several energy-generating reactions that yield one ATP molecule, three…
Los productos del ciclo del ácido cítrico
The cells of most organisms—including plants and animals—obtain usable energy through aerobic respiration, the oxygen-requiring version…
Cadenas de transporte de electrones
The final stage of cellular respiration is oxidative phosphorylation, which consists of (1) an electron transport chain and (2) chemiosmosis. The…
La quimiosmosis
Oxidative phosphorylation is a highly efficient process that generates large amounts of adenosine triphosphate (ATP), the basic unit of energy that…
Portadores de electrones
Electron carriers can be thought of as electron shuttles. These compounds can easily accept electrons (i.e., be reduced) or lose them (i.e., be…
El rendimiento del ATP
Cellular respiration produces 30-32 ATP molecules per glucose molecule. Although most of the ATP results from oxidative phosphorylation and the…
La fermentación
Most eukaryotic organisms require oxygen to survive and function adequately. Such organisms produce large amounts of energy during aerobic…
Conexiones dietéticas
Metabolic pathways are interconnected. The cellular respiration processes that convert glucose to ATP—such as glycolysis, pyruvate oxidation, and…
-Alta resolución respirometría para evaluar la función mitocondrial en células intactas y permeabilizadas
A high-resolution oxygraph is a device for measuring cellular oxygen consumption in a closed-chamber system with very high resolution and sensitivity…
Un protocolo optimizado para analizar la glucólisis y respiración mitocondrial en los linfocitos
Lymphocytes respond to a variety of stimuli by activating intracellular signaling pathways, which in turn leads to rapid cellular proliferation,…
El tratamiento de ratones con SCA1 hidrosolubles compuestos para no específicamente estimular la función mitocondrial
Mitochondrial dysfunction plays a significant role in the aging process and in neurodegenerative diseases including several hereditary…
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