Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Assignment # 35 Cell Organelles - Mr. Le`s Living Environment
Document related concepts
Tissue engineering wikipedia , lookup
Cytoplasmic streaming wikipedia , lookup
Extracellular matrix wikipedia , lookup
Cell growth wikipedia , lookup
Cell membrane wikipedia , lookup
Cell encapsulation wikipedia , lookup
Cellular differentiation wikipedia , lookup
Cell culture wikipedia , lookup
Signal transduction wikipedia , lookup
Organ-on-a-chip wikipedia , lookup
Cell nucleus wikipedia , lookup
Cytokinesis wikipedia , lookup
Transcript
Name:_______________________________ Period:_____ Aim: How do cell organelles carry out specialized function within a cell? Assignment # 35 Instructions 1. Go to www.MrLeLivingEnvironment.weebly.com 2. Click on Powerpoint and click on Cell Organelles ppt 3. Study the ppt and use it to help you complete this assignment Questions 1. What are the two key objectives (what you will learn) in this lesson?______________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ 2. Why do we study cells? ___________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ 3. What are the 3 main jobs of cells? ___________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ 4. Why do cells need energy? ________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ 5. What are organelles? _____________________________________________________________________ _______________________________________________________________________________________ 6. Why are cell organelles important? __________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ 7. Complete the chart below Name of Cell Organelle Cell Membrane Cytoplasm Vacuole Lysosomes Functions Mitochondria Ribosome Nucleus Endoplasmic Reticulum Golgi Apparatus 8. How are plant cells different than animal cells? _____________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ Instructions 1. Go to www.MrLeLivingEnvironment.weebly.com 2. Click on Video Archive and click on the Cell Organelles Song 3. Watch the clip and use to help you complete this assignment. 9. Figure out who I am based on the clue/hint/picture. Hint I am the gatekeeper Energy factory The boss/brain of the cell Thin and wavy network used for transportation I package and sort proteins I make proteins I dissolve and break down damaged/dead organelles I make food for the plant cells Guess which organelle am I Reading Comprehension: answer the questions below after you have finished reading this article. Organelles are small structures within cells that perform dedicated functions. As the name implies, you can think of organelles as small organs. There are a dozen different types of organelles commonly found in eukaryotic cells It is important to know the basic facts about the following organelles. Nucleus This is where the DNA is kept and RNA is transcribed. The nucleus controls all activities inside the cell. Ribosomes Ribosomes are the sites of protein synthesis , where RNA is translated into protein. Protein synthesis is extremely important to cells, and so large numbers of ribosomes are found throughout cells (often numbering in the hundreds or thousands). Ribosomes exist floating freely in the cytoplasm, and also bound to the endoplasmic reticulum (ER). ER bound to ribosomes is called rough ER because the ribosomes appear as black dots on the ER in electron microscope photos, giving the ER a rough texture. These organelles are quite small, made up of 50 proteins and several long RNAs intricately bound together. Ribosomes have no membrane. Ribosomes disassemble into two subunits when not actively synthesizing protein. Mitochondria Mitochondria are the sites of aerobic respiration, and generally are the major energy production center in the cell. Chloroplasts These organelles are the site of photosynthesis in plants and other photosynthesizing organisms. They also have a double membrane. There is a more complete description of the chloroplast here, in the chapter on photosynthesis. Endoplasmic Reticulum (ER) The ER is the transport network for molecules targeted for certain modifications and specific final destinations, as opposed to molecules that are destined to float freely in the cytoplasm. There are two types of ER, rough and smooth. Rough ER has ribosomes attached to it, and smooth ER does not. Golgi apparatus This organelle modifies molecules and packages them into small membrane bound sacs called vesicles. These sacs can be targetted at various locations in the cell and even to its exterior. Lysosome This organelle digests waste materials and food within the cell, breaking down molecules into their base components with strong digestive enzymes . Questions 1. Which organelle from the above list is the most important organelle inside the cell? Justify your answer. _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________
