SCIENCE - Q3 - MONTHLY

• CELL THEORY -

   

  1. All living things are composed of one or more cells

  2. Cells are the basic unit of structure and function of all organism (basic unit of life)

  3. All cells arise only from pre-existing cells (cell division)
• VESICLE- Moves substances from one organelle to another 
• VACUOLE- Serves as food storage                                                  
• ENDOPLASMIC RETICULUM- Produces steroids                                                          
• CELL MEMBRANE- A semipermeable barrier of the cell                                 
• CYTOSKELETON- Serves as the “bone and muscles” of cells
• CYTOPLASM- Largest part of the cell
• NUCLEUS- Contains the hereditary materials                                    
• PLASTID- Undergoes photosynthesis                                              
• RIBOSOME- Produces proteins                                                            
• GOLGI APPARATUS- Flattened sacs                                                                
• LYSOSOME- Contains hydrolytic enzymes                                          

                        Digests bacteria and other foreign substances               
• MITOCHONDRIA- Energy production 
• CHLOROPLAST- Needed in photosynthesis
• RUDOLPH VIRCHOW- German pathologist who concluded that cells reproduce by forming new cell
• MATHIAS SCHLEIDEN- Plant cell
• COMPOUND MICROSCOPE- Used to examine cells and tissues with the use of light to illuminate the object being

                                                    Examined
• CELL DIVISION- Directly affected by any damages incurred in the cytoskeleton of cells
• MAGNIFYING PARTS:

  1. Eyepiece or ocular

  2. Objectives

  3. High Power Objective

  4. Low Power Objective

  5. Oil Immersion Objective
• MECHANICAL PARTS:

   

  1. Body Tube

  2. Coarse Adjustment Knob

  3. Fine Adjustment Knob

  4. Arm

  5. Inclination Joint

  6. Pillar

  7. Base
• ILLUMINATING PARTS:

   

  1. Draw Tube

  2. Revolving Nosepiece

  3. Stage

  4. Diaphragm

  5. Condenser

  6. Mirror