Quiz 2 Flashcards
Define three terms of pathology.
Tumors: lumps
Neoplasts: new liquid, cyst
Polyp: growth in any body opening
Define benign and malignant.
Benign: good, harmless
Malignant: bad, harmful
Define cell organelles and cell inclusion.
Cell Organelles: tiny, ultra structures in cell cytoplasm that perform some metabolic function
Cell Inclusion: non-living entities that assist organelles in their functions
What is the ABCDE of skin cancer?
Asymmetry
Borders: smooth, good v. jagged, bad
Color: especially maroon or blood coloring
Diameter: if continually growing
Elevation: flat, good v. raised or lumpy, bad
What are the first two parts of the cell theory?
- Cells are the basic unit of living organisms.
2. Cells produce similar cells through mitosis.
What makes up a eukaryotic cell?
Nucleus, cytoplasm with organelles, plasma membrane
75% interstitial fluid, 20% protein, 3-6% salts (KCaNa)
Define prokaryotic cells and eukaryotic cells.
Pro-: primitive cells that lack a nucleus, organelles, or both (both means a true pro-cell); eg. bacteria or blood cells
Eu-: true cells that exist in complex organisms and are independent because of metabolic capabilities; eg. skin cells or liver cells
Name 5 organelles and their functions within the cell.
Ribosomes: produce proteins
Golgi Bodies, Golgi Apparatus: packages proteins together
Lysosomes: contain enzymes; act as the cell’s digestive system
Vacuoles: storage of water, food, or waste
Mitochondria: perform respiration; liberates ATP (liquid cell energy)
Define metabolism, catabolism, and anabolism.
Metabolism: sum of all organelle functions of a eukaryotic cell
Catabolism: to break down
Anabolism: to build up
What are the five steps of metabolism?
- Ingestion
- Catabolism
- Transport, Energy Cycle
- Anabolism
- Proteins and Waste formed; excretion for liquids, egestion for solids
What is the energy cycle?
ATP (unstable, very reactive) changed into ADP when used; some energy is lost due to heat, active transport, or the union of amino acids chains
What is the rate of molecular movement dependent on?
- Temperature: higher temperature means higher energy
- Gradient: high to low concentration
- Size of molecules
- Pressure
What is passive transport? What are the three types of passive transport?
PT requires no energy.
- Simple diffusion: movement from a high to low concentration
- Facilitated diffusion: requires assistance to diffuse
- Osmosis: diffusion of liquid through SPM
What is active transport? What are the two types of active transport?
AT requires energy (ATP) to transport molecules against a gradient or to be moved through the pores of SPM.
- Exocytosis: move out of the cell
- Endocytosis: take into the cell (phagocytosis for solids, pinocytosis for liquids)
What is toxicity? What are the three types of tonicity?
Tonicity is the solution/interstitial fluid in which a cell soaks.
- Hypertonic: more water in cell than out; transport goes in to out; can lead to plasmolysis or cytoplasm destruction
- Hypotonic: more water out of cell than in; transport goes out to in the cell; can cytolysis or cell destruction
- Isotonic: equal water concentration in and out of cell