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Structure and Function

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Presentation on theme: "Structure and Function"— Presentation transcript:

1 Structure and Function
Plant Cell Structure and Function

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

3

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

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

6 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

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

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

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

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

11 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

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

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

14 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

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

16 Microtubules Structural Features Function Long, slender protein tubes
Supports cell

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


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