Cell Structure - Biology Year 9 - Education PDF

CELL STRUCTURE  OBJECTIVE  Compare the structural differences between plant, animal c by identifying key organelles.  Explain the function of the listed organelles  THINK!!!! "If you could shrink down and explore a cell, what w...

CELL STRUCTURE  OBJECTIVE  Compare the structural differences between plant, animal c by identifying key organelles.  Explain the function of the listed organelles  THINK!!!! "If you could shrink down and explore a cell, what would you want to see?" Make a word cloud with your prior knowledge about the cells  VIDEO https://www.youtube.com/watch?v=3nBtY6LR030  Define cells Cells are the basic units of organismsCells can only be observed under microscope Two basic types of cells: Animal Cell Plant Cell  Student explore the 3d Model of cell https://cell.effigos.com/  Plant Cell Cell wall Made of cellulose which forms very thin fibres Strong and rigid In plant  Plant Cell Cell – wall Protect and support the enclosed substances (protoplasm) – Resist entry of excess water into the cell – Give shape to the cell. – Made of cellulose  Plant Cell Cell membrane – Lies immediately beneath the cell wall – Made of protein and lipid Selectively permeable. – Can control the movement of materials into  Plant Cell Cytopla – Jelly-like sm substance enclosed by cell membrane – Provide a medium for chemical reactions to take place. Contains organelles and  Plant Cell Nucl – Control the normal activities of the cell – eus Bounded by a nuclear membrane – Contains thread-like chromosomes. Chromosomes carry DNA – Stores genetic information  Plant Cell Chloroplas t– Contain the green pigment chlorophyll To trap light energy, to make food by photosynthesis Contain starch grains (products of photosynthesis) vacu cytopl ole asm Animal cell nucl No cell eus wall and chloropla mitochond Stores st rion glycogen granules cell and oil glycog membr en ane droplets  Different kinds Different kinds of of plant cells animal cells white blood cell Amoe ion Epidermal Cells Guard Cells ba red root hair blood cell muscle spe cell cheek rm Root cells nerve Parame Hair cell cium MUST TASK  DRAW A VENN DIAGRAM COMPARE THE ORGANELLES OF PLANT AND ANIMAL ADD A NOTE ON BACTERIAL CELL  MINI-PLENARY C_R________  GROUP1>>GROUP2>>GROUP3>>EXT GRP:1 How GRP2: How would the absence of a GRP3: Scientists want to EXT: Draw what is plant cell cell wall in animal cells affect their examine onion cells under the the scientists different overall structure and function microscope. The scientists would expect to from animal compared to plant cells, and what prepare the onion cells by taking see under the and implications would this have for their one sheet of cells from the microscope bacterial ability to carry out specific processes epidermis of the cell. like photosynthesis and energy onion and place the tissue on a Elaborate production?" glass slide. lodine is used to dye your answer the onion cells and a cover slip is placed on top of the sample. A light microscope is used to observe the cells. Why can the scientists not see all of the cell components? Explain what the scientists could use to see the cells in more detail  GROUP1>>GROUP2>>GROUP3>>EXT GRP:1 How is plant cell GRP2: GRP3: EXT: Draw what the different from animal and Absences of cell wall Light microscope could scientists would expect bacterial cell. Animal cell- flexibility expose only cell to see under the Elaborate your answer Absence of membrane , cytoplasm , microscope photosynthesis nucleus , however to ANS: Rely on mitochondria for observe further electron PLANT CELL : energy microscope could be Presence of chloroplast , used. cell wall.  https://jeopardylabs.com/play/cell-structure-966  PLENARY 1. In plant cells, __ are responsible for photosynthesis. a. chloroplasts b. vacuoles c. lysosomes d. peroxisomes 2. The __ is a fluid-filled sac that helps maintain cell shape and stores materials. a. nucleolus b. Golgi apparatus c. vacuole d. centriole 3. The __ is a semi-permeable barrier that controls what enters and exits the cell. a. nuclear membrane b. cell membrane c. cytoskeleton d. cell wall 4. __ are responsible for breaking down cellular waste and debris. a. Ribosomes b. Mitochondria c. Chloroplasts d. Lysosomes 5. The __ is responsible for modifying, packaging, and distributing proteins. a. endoplasmic reticulum b. nucleus c. Golgi apparatus d. cytoplasm  HOME-LEARNING Write a few sentences reflecting on how understanding cell structure can help us learn more about biological processes in living organisms.