Flashcards
Exam 1
Flashcards do conjunto (34)
- 1What are the two types of control systems in the body?Nerves & Hormones
- 2Define HistologyThe study of cells in tissues
- 3What are the shared characteristics of all cells?Growth
Reproduction
Absorption
Excretion/Secretion
Respiration
Irritability - 4What is the difference between secretion and excretion?Excretion refers to waste
Secretion refers to a valuable product - 5Define HypertrophyCell Growth
- 6Define HyperplasiaCellular Reproduction
- 7Define IrritabilityResponse to stimuli
Electrical Potential
Conduction
Contraction - 8Name the chemical components of cells (4)Major component- Water
Protein
Fat
Carbohydrates - 9What percentage of a cell is made up of water?80%
- 10What percentage of a cell is made up of Protein?10-15%
- 11What percentage of a cell is made up of Fat?1-3%
- 12What percentage of a cell is made up of Carbohydrates?1%
- 13What are the important functions of water in a cell? (3)Universal Solvent
High Specific Heat
Heat Regulation (sweat) - 14What are the important functions of Protein in cells? (2)Structure (membranes&connective tissue)
Metabolic (enzymes Ex. insulin) - 15What are the important functions of Fat in a cell? (3)Structure
Metabolic (hormones- steroids)
Energy (from fatty acids) - 16What are the important functions of Carbohydrates in a cell?Energy
Structure
Metabolic - 17List the organelles of a cellCell Membrane
Nucleus
Endoplasmic Reticulum
Ribosomes
Golgi Apparatus
Mitochondria - 18What is the cell membrane made up of?It is a lipid bilayer
60% Protein
40% Lipid - 19List the methods used to cross the cell membrane (6)Diffusion
Facilitated Diffusion
Osmosis
Filtration
Active Transport
Pinocytosis/ Exocytosis - 20Define DiffusionThe movement of a substance from higher concentration to lower concentration by kinetic energy of molecular motion.
- 21What molecules can pass the membrane by diffusion?-Fatty acids with fewer than 5 carbons
-Lipid soluble molecules
- Must be small enough to pass through a pore
Positive molecules move slowly
Negative move fast - 22Exception to diffusion rulesGlucose- Too big and not soluble but still uses diffusion
- 23Define facilitated diffusionMonosaccharides like glucose cross the membrane with the help of a carrier protein
- 24Define OsmosisMovement of water from an area of low osmotic pressure to an area of high osmotic pressure.
- 25What causes osmotic pressure?It is generated by any solute to which the membrane is not permeable
Ex. Na+ - 26Define Hydrostatic PressureThe physical weight of water
- 27Define FiltrationDiffusion with assistance by hydrostatic pressure
Ex. Kidney - 28Define Active TransportThe movement of a material against concentration and electro-chemical gradient at the expense of metabolic energy (ATP)
Ex. Sodium potassium pump - 29Define Pinocytosis/ PhagocytosisThe only mechanism to take in things with large molecular weight
Ex Protein - 30What is the difference between Pinocytosis and Phagocytosis?Pino- Taking in good things the cell needs
Phago- Taking in bad things to kill - 31What is the the significance of the mitochondria?90% of ATP is made here.
36 ATP made from every mole of glucose - 32Define OsteologyThe study of Bone
- 33What are the functions of bone?Structure for the body
Blood cell production
Primary mineral reserve
Protection- Ex. Skull and Ribs - 34—
Informações
- Descrição
- 300 ANSC 370 FlashCards sobre Exam 1, criado por Emily Swagerty em 18-09-2015.
- Criado por
- Emily Swagerty
- Visualizações
- 1
- Avaliação