Survey
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
Signal transduction wikipedia, lookup
Extracellular matrix wikipedia, lookup
Cell membrane wikipedia, lookup
Tissue engineering wikipedia, lookup
Cellular differentiation wikipedia, lookup
Cell culture wikipedia, lookup
Cell nucleus wikipedia, lookup
Cell encapsulation wikipedia, lookup
Organ-on-a-chip wikipedia, lookup
Name:_______________________________________ INTRODUCTION TO CELLS (Panda book p.69-80) 3-1 The Cell Theory A cell is defined as ______________________________________________________________ ________________________. Cells contain structures called ___________________________. This terms means tiny _________________________. Cells were first described by the English scientist __________________ _________________, who thought that they resembled tiny rooms, or cells, where monks live. (Actually, ______________________ cells—just the _____________________ ________________ did not see living ___________ of dead cork cells.) The discovery of cells and their internal parts was made possible by the invention of the ____________________________ in the ____________ century. During the next two hundred years, the work of many scientists led to the development of the _______________ theory. This theory can be summarized in three statements: 1. _________________________________________________________________________________ 2. _________________________________________________________________________________ _________________________________________________________________________________ 3. _________________________________________________________________________________ 3-2 Structure and Function of Cells CELL PART DESCRIPTION Strong, stiff, nonliving layer outside the cell membrane, made of cellulose FUNCTION/JOB PLANT ANIMAL BOTH? Cell membrane Nucleus Allows materials to pass into or out of the nucleus Chromosomes Nucleolus One of a set of structures found in the nucleus; made of DNA, plus some protein Both Region between the nucleus and the cell membrane; consists of a jellylike substance that contains many organelles. Endoplasmic reticulum Small, grain-like body made of RNA, may be attached to the endoplasmic reticulum or floating freely in the cytoplasm; produced in the nucleolus. Rod-shaped organelle; located in the cytoplasm; has a smooth outer membrane and a greatly folded inner membrane Place where proteins are made. Both Vacuole Animal, rare in plant cells Lysosome Captures energy in sunlight and uses it to produce food Review of Ideas: 1. Name the organelles that are found in the cytoplasm:_______________________________________ 2. Name two cell parts that are found in plant cells and are not found in animal cells. _______________ ____________________________________________________________________________________ 3. Why is the process that takes place in the mitochondrion often described as being the opposite of the process that takes place in the chloroplast? _________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________