Transcript Plant Cells
What do these all have in common? So what is it? What do these all have in common with each other? Cells… why should I care? • Building blocks of the plant • Perform micro functions that leads to the plants livelihood • Without plants cells… we would starve and have no clothes or shelter! What is a cell? • Plant cells are a nucleus and a mass of protoplasm contained within a plasma membrane. • Cells are the basic unit of growth. What do cells do? • A group of cells together make up a tissue. • A group of tissues make up an organ. • A group of organs make up an organism. What are the components of a plant cell? • • • • • • • • Nucleus Protoplasm (Cytoplasm) Plasma membrane Cell Wall Chloroplasts Vacuole Plastids Mitochondrion What are these components called? • Cell Organelles What is the function of the cell wall? • Rigid • Provides support for the cell and thus the whole plant • Provides the cell’s shape What is the function of the plasma membrane? • Surrounds the protoplasm • Allows the exchange of nutrients and gases into and out of the cell • Semi-permeable What is the function of the nucleus? • Brain of the cell • Directs all of the plant’s life functions • Location of the plant’s genetic and hereditary make up What is the function of the protoplasm? • This is the living matter of the cell • This is what everything in the cell floats in and maneuvers What is the function of the chloroplasts? • Provides green color • Harnesses light energy, uses water and carbon dioxide to produce glucose and oxygen… AKA photosynthesis What is a vacuole? • A vacuole is a storage tank • This stores waste What is a plastid? • Small particle in the protoplasm • Is a starch or oil or protein • Gives the plant pigment • Chromoplast provides red, orange and yellow colors What is the mitochondrion? • Converts glucose into usable energy for the plant to perform its many life functions Is a plant cell that simple? • There are many other organelles that help to make the whole cell work together and thus allow the plant to perform its life functions. Homework Write a tour of a plant cell. You need to write the cell tour as though you are a tour guide. For example, “As you will see, we are now pulling up to our destination the plant cell. We will first break through this rigid outer structure. Here are the doors. This is what is known as the cell wall. It provides the nice structure and holds everything in the cell.” You should tour all the organelles we have discussed and walk out the other side of the cell, through the plasma membrane and finally the cell wall.