Structure and Function

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Presentation transcript:

Structure and Function Plant Cell Structure and Function

Cell Membrane Made up of Lipids, Protein and Carbohydrates Forms a lipid bi-layer

Functions of Cell Membrane Controls what molecules enter and exit the cell Protects and Supports the cell Helps cell communicate with other cells

Cell Wall Structural Features Function Rigid structure composed of cellulose Has two or more layers It has pores Function Protect and Support the cell

Chloroplast Structural Features Function Surrounded by two membranes Contains Chlorophyll Type of plastid Function Site of Photoynthesis Sun light is used to make organic compounds

Cytoplasm Structural Features Function Jelly like material made of water, salt and organic compounds Function Contains organelles

Endoplasmic Reticulum (ER) System of membranous tubules and sacs Can be rough: with ribosomes attached Can be smooth: no ribosomes

Functions of the ER Rough ER Smooth ER Site of new protein production “Highways” that proteins move through and storage site for proteins

Mitochondrion Structural Features Functions Bean Shape Surrounded by 2 membranes Functions Energy center or “Powerhouse” of the cell Turns food into useable energy (ATP)

Nucleus Structural Features Surrounded by a double membrane called the Nuclear Membrane or Envelope Has pores Contains Chromatin: DNA & Protein Contains the Nucleolus which makes ribosomes Contains Nucleoplasm which is cytoplasm of the nucleus

Functions of the Nucleus Directs all cell activities; reproduction and protein production “Brains” of the cell

Ribosomes Structural Features Function Small, globular (round) organelles Function Site of protein synthesis (production)

Vacuole Structural Features Function Very large; makes up about 90% of the cell volume Filled with fluids Has a single membrane Function Stores enzymes, food and sometimes waste

Golgi Apparatus Structural Features Function Flattened stacks of membranes (Pancakes) Function Processes, modifies and packages proteins

Microtubules Structural Features Function Long, slender protein tubes Supports cell

Nuclear Membrane Nucleolus Golgi Apparatus Nucleoplasm Mitochondrion Rough ER Ribosomes Smooth ER Vacuole Chloroplast Cell Membrane Microtubules Cell Wall

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