The Cell Flashcards
Cell membrane
Protects and selectively allows water and other substances in and out of the
Many diseases alter membrane’s permeability
Cell nucleus
Contains DNA, genetic blueprint for cellular reproduction
Endoplasmic reticulum
Synthesizes proteins
Mitochondria
Produces energy - glucose to ATP (essential process of metabolism)
ATP
Powers all cellular functions
Electrolytes
When dissolved in water will separate into charged particles
Movement of particles enable electrical functions of cells
Potassium, sodium, magnesium, etc
Insulin
Most of body cells require insulin to help move glucose from blood into cell
Metabolism also
Produces heat and regulates body temperature, all cellular metabolism produces waste such as carbon dioxide and hydrogen ions
Aerobic yields 16 times more energy
Anaerobic metabolism
Shifts energy to removing waste
Increases respiratory rate to rid carbon dioxide
Acid in body converted to CO2 & water
High levels of acid (acidotic) means less oxygen in blood
Causes Downward spiral
Oxygen path for metabolism
Supplied by respiratory system & carried to cells by cardiovascular
Inhaled air reached alveoli, blood reaches capillaries
Oxygen loaded onto hemoglobin in blood for transport
CO2 follows reverse path, removal of CO2 regulates acid levels