when specialized cells join together in a group they form

The mitochondria is where stored sugars from photosynthesis are metabolized to produce forms of energy that the plant can use for growth. A plant cell in the leaf blade will have many chloroplasts, while cells in the middle of the stem will have few or none. Chloroplasts are not evenly distributed throughout the plant but, as you might expect, are concentrated in parts of the plant that are exposed to and oriented toward the sun. In the chloroplast, light energy is captured and the first steps are taken in the chemical pathway that converts the energy in light into forms of energy that the plant can transport and store, like sugar and starch. ChloroplastĪn organelle (“organelle” is the generic name for a plant organ) that contains chlorophyll. If the cell were like a bicycle tire, the cell wall would be the thick, protective outer tire tread and the cell membrane would be the inner tube. The cell membrane is semi-permeable - it allows select compounds in and out, but blocks other types of compounds. The cell membrane is made up of layers of protein and lipid (fats and oils are examples of lipids). The cell wall protects the parts inside, and the cellulose molecules in the wall provide the support and rigidity needed to maintain the cell’s three-dimensional structure. The outer covering of the cell, the cell wall is a rigid membrane that contains cellulose (a carbohydrate that is indigestible for humans). The graphic below illustrates the key parts of the plant cell. Watch this video about plant cell parts (7:47) Summarize the key functions of those tissues.List the types of tissues in a plant and describe where they are located and the specialized cells that make up each of these tissues.By the end of this lesson you will be able to:

When specialized cells join together in a group they form