Biology Chapter 7 Vocab Quiz

This is for my biology test.To help me study.Is this good enough?

40 cards   |   Total Attempts: 182
  

Cards In This Set

Front Back
Uses a series of lenses to magnify objects in steps
Compound light microscope
1. All organisms are composed of one or more cells2.The cell is the basic unit of structure and organization of organisms3. All cells come from preexisting cells
Cell theory
Uses a beam of electorons instead of light to magnify structures up to 500 000 times their actual size
Electron microscope
Membrane-bound structures with particular functions within eukaryotic cells
Organelles
Basic units of living things
Cell
Unicellular organisms that do not have a nucleus or membrane bound organelles
Prokaryotes
Multi cellular or unicellular organisms with membrane-bound organelles and a nucleus
Eukaryotes
Central membrane-bound organelle that manages or controls cellular functions
Nucleus
Flexible boundary betweeen the cell and its environment; allows materials such as water and nutrients to enter and waste products to leave
Plasma membrane
Process in which a membrane allows some molecules to pass through while keeping others out
Selective permeablity
Lipids with a phosphate group attached
Phospholipid
Structural model of the pm where molecules are free to move sideways within a lipid bilayer
Fluid mosaic model
Move needed substances or waste material through the pm
Transport protiens
Fairly rigid structure located outside the pm that provides additional support and protection
Cell wall
Strands of the genetic material, DNA
Chromatin