Pathophysiology 8th Edition
by Sue E. Huether , Kathryn L.
McCance. Latest Version
Eukaryotic cell - answer- Contains supercoiled DNA and histones.
Nucleus - answer- Membrane-bound structure housing DNA in eukaryotes.
Respiration - answer- Process of absorbing oxygen to produce energy.
Nucleolus - answer- Region within nucleus containing genetic material.
Integral membrane proteins - answer- Dissolve bilayer to remove attached proteins.
Ligands - answer- Molecules that bind to plasma membrane receptors.
Fibronectin - answer- Extracellular matrix protein decreased in metastatic cancer.
Cell junction - answer- Structure allowing direct communication between adjacent cells.
Paracrine signaling - answer- Local chemical mediators affecting nearby cells.
Enzyme affinity - answer- High attraction of enzymes to specific substrates.
Metabolic absorption - answer- Cellular process of nutrient uptake for energy.
Cell adhesion molecules - answer- Proteins that help cells stick to each other.
Glycoproteins - answer- Proteins with carbohydrate chains, marking cell identity.
Gap junction - answer- Channels allowing communication between adjacent cells.
Desmosome - answer- Structure providing mechanical stability between cells.
Tight junction - answer- Barrier preventing leakage between epithelial cells.
,Mitochondria - answer- Organelles responsible for cellular respiration.
Ribosomes - answer- Sites of protein synthesis within the cell.
Cytoplasm - answer- Fluid component of the cell, excluding nucleus.
Collagen - answer- Structural protein in extracellular matrix, providing support.
Elastin - answer- Protein allowing elasticity in tissues.
Alpha cells - answer- Pancreatic cells that secrete glucagon.
Beta cells - answer- Pancreatic cells that secrete insulin.
Paracrine signaling - answer- Local chemical mediators quickly taken up or destroyed.
Enzyme affinity - answer- Each enzyme has high affinity for a substrate.
ATP deficiency - answer- Lack of ATP impairs muscle contraction.
Citric acid cycle - answer- Phase producing most ATP in catabolism.
Phases of catabolism - answer- Includes digestion, glycolysis, oxidation, citric acid
cycle.
Anaerobic glycolysis - answer- Occurs without oxygen for continued muscle
performance.
Diffusion - answer- Movement of solute from high to low concentration.
Electrolytes - answer- Electrically charged molecules essential for bodily functions.
Oncotic pressure - answer- Determined by concentration of plasma proteins.
Hydrostatic pressure - answer- Force of fluid against a cell membrane.
Active transport - answer- Movement of molecules against a concentration gradient.
Osmosis - answer- Movement of water across a semipermeable membrane.
Glycolysis - answer- Initial phase of glucose metabolism producing ATP.
Oxidation - answer- Phase of catabolism involving electron transfer.
Muscle fatigue - answer- Result of ATP depletion after strenuous exercise.
, Substrate - answer- Specific substance converted to product by enzyme.
Carbohydrate metabolism - answer- Process of breaking down carbohydrates for
energy.
Fluid concentration - answer- Measured in mOsm/kg for body fluids.
Colloid osmotic pressure - answer- Another term for oncotic pressure.
Energy transfer - answer- Mechanism by which nutrients convert to ATP.
Solute concentration - answer- Refers to the amount of solute in a solution.
Metabolic absorption - answer- Process of cells taking in nutrients.
Respiration - answer- Cellular process of converting nutrients to energy.
Osmolality - answer- Concentration of molecules per weight of water.
Osmolarity - answer- Concentration of molecules per volume of solution.
Osmotic Pressure - answer- Hydrostatic pressure opposing osmotic water movement.
Oncotic Pressure - answer- Pressure from plasma proteins affecting fluid movement.
Hydrostatic Pressure - answer- Pressure exerted by fluid in blood vessels.
Osmosis - answer- Fluid movement from high to low concentration.
Diffusion - answer- Passive solute movement from high to low concentration.
Active Transport - answer- Energy-requiring movement against concentration gradient.
ATPase - answer- Enzyme facilitating sodium and potassium transport.
Symport - answer- Transport of Na+ and Ca2+ in same direction.
Uniport - answer- Transport of a single molecule across membrane.
Antiport - answer- Transport of molecules in opposite directions.
Endocytosis - answer- Process of engulfing substances into the cell.
Pinocytosis - answer- Ingestion of fluids and solutes via small vesicles.
Phagocytosis - answer- Ingestion of large particles, like bacteria.