Presentation is loading. Please wait.

Presentation is loading. Please wait.

Parts of a Eukaryotic Cell

Similar presentations


Presentation on theme: "Parts of a Eukaryotic Cell"— Presentation transcript:

1 Parts of a Eukaryotic Cell
Eu – Good / True Karyote- Kernel (nucleus)

2 Cell Membrane The Cell Membrane is made of a phospholipid bilayer
Phospholipids – are made of a glycerol, phosphate, and two fatty acids Bilayer- Two Layers

3 Phospholipids (the dancing Baker)

4 A Phospholipid Bilayer

5 Membranes are Selectively Permeable
Some substances cross the membrane while others cannot cross at all.

6 Peripheral Proteins Are located on cell membrane: on the outside of the cell and on the inside of the cell attached to membrane

7 Are located in the cell membrane
Integral Proteins Are located in the cell membrane

8

9

10 Fluid Mosaic Membrane Model
The membrane acts more like a fluid than a solid. Proteins can change locations in the membrane

11

12 Organelles

13 Organelles Cytoplasm – the entire contents between the plasma membrane and the nucleus Cytosol- the jelly like substance that surrounds all the organelles

14 Mitochondria –the powerhouse
Mitochondria have many internal folds called cristae (Kris-tee) This is the organelle that produces ATP for Energy This organelle has its own “Mitochondrial DNA”

15 The inside of the mitochondria is called the MATRIX

16 Ribosomes – Protein Assemblers
Ribosomes have no membrane They are: Made of RNA and Protein Responsible for making proteins Found in the cytosol and on the Rough Endoplasmic Reticulum

17 Endoplasmic Reticulum – the highway
Rough Endoplasmic Reticulum (ER) - Covered with ribosomes Makes and transports proteins Smooth Endoplasmic Reticulum- Makes Steroids Regulates calcium levels in muscle cells

18 Rough And Smooth Endoplasmic Reticulum

19 Golgi Apparatus – Packaging and Secreting
Is a series of flattened sacs with a convex shape It makes, packages and distributes proteins to the cell

20 Golgi Apparatus

21 Lysosomes – the digester
Have a phospholipid monolayer Digest proteins, carbohydrates, lipids and DNA and RNA Contain enzymes that break down old organelles, viruses and bacteria.

22 Cytoskeleton – the scaffolding
Provides the structural support for a cell Made of Microfilaments-small threads of actin protein. Responsible for cell movement Microtubules- large hollow tubes that help during mitosis

23

24

25 Green = Microtubules Blue = Chromosomes Red = Mitochondria

26 Responsible for cellular locomotion (movement)
Cilia and Flagella Responsible for cellular locomotion (movement) Cilia – hair like projections from the cell Flagella – one to several extensions from the cell

27 Microtubules in a 9:2 Ratio

28

29 Nucleus Contains a nuclear skeleton known as the Nuclear Matrix

30 Nucleus Nuclear envelope- surrounds the nucleus
Cromatin – unraveled chromosomes. Chromosomes – contain genetic information Nuclear pores – openings in the nuclear envelope Nucleolus - makes ribosomes

31 Cell Wall Only in plant cells
They are rigid structures made of cellulose

32 Vacuoles Store waste, food, and water. Makes up most of many plant cells.

33 Plastid (found primarily in plant cells)
Chloroplast- captures energy from the sun to make sugar Thylakoid

34

35


Download ppt "Parts of a Eukaryotic Cell"

Similar presentations


Ads by Google