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Chapter 2: Cells Chapter 2- Cells
The discovery of cells ,[object Object],[object Object],[object Object]
The animal cell (3-D) Nucleus Vacuoles Plasma Membrane Mitochondrion Nucleolus Cytoplasm Golgi apparatus Rough endoplasmic reticulum
Label the parts of an animal cell.
The plant cell  (3-D) Cell wall Plasma Membrane Central vacuole Chloroplasts Mitochondrion Nucleus Cytoplasm Nucleolus Golgi apparatus Rough endoplasmic reticulum  Smooth endoplasmic reticulum
Label the parts of a plant cell.
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Plant Cell – 22 500 X  (electron micrographs)
3-D structure of a chloroplast
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Nucleus Function Structure Organelle
[object Object],[object Object],[object Object],Plasma Membrane / Cell surface membrane  Function Structure Organelle
[object Object],[object Object],[object Object],Cytoplasm Function Structure Organelle
ATP = Adenosine triphosphate   ,[object Object],[object Object],Contains many folds to increase surface area for synthesis of  ATP molecules / energy molecules Mitochondria (plural) Mitochondrion   Function Structure Organelle
[object Object],[object Object],No ribosomes attached. Smooth  Endoplasmic Reticulum (SER) ,[object Object],Ribosomes   attached on RER  Rough Endoplasmic Reticulum (RER) Function Structure Organelle
[object Object],[object Object],Free ribosomes  (a type of proteins made in the nucleolus) Function Structure Organelle
[object Object],[object Object],[object Object],[object Object],Golgi Apparatus (GA) [Vesicle movement] http://biologica.concord.org/webtest1/Shout3d_cell_6_1_00/v2_frameset.htm  Function Structure Organelle
1. Vesicles transport substances within the cell. Small vesicles containing substances made by the ER are pinched off from the ER. How substances made by the endoplasmic reticulum enter the Golgi apparatus and are finally secreted out of the cell   rough endoplasmic reticulum vesicle forming Processes in the Golgi Apparatus
1. Vesicles transport substances within the cell. Small vesicles containing substances made by the ER are pinched off from the ER. How substances made by the endoplasmic reticulum enter the Golgi apparatus and are finally secreted out of the cell   rough endoplasmic reticulum vesicle forming vesicle pinched off Processes in the Golgi Apparatus
1. Vesicles transport substances within the cell. Small vesicles containing substances made by the ER are pinched off from the ER. 2. Vesicles then fuse with the Golgi apparatus and release their contents into the Golgi apparatus. The substances made by the ER may be modified inside the Golgi apparatus.  How substances made by the endoplasmic reticulum enter the Golgi apparatus and are finally secreted out of the cell   rough endoplasmic reticulum vesicle forming vesicle fusing with  Golgi apparatus Golgi apparatus vesicle pinched off Processes in the Golgi Apparatus
1. Vesicles transport substances within the cell. Small vesicles containing substances made by the ER are pinched off from the ER. 4. Secretory vesicles fuse with the cell surface membrane and their contents are released outside the cell.  How substances made by the endoplasmic reticulum enter the Golgi apparatus and are finally secreted out of the cell  3. Secretory vesicles containing these modified substances are pinched off from the Golgi apparatus. They then move to fuse with the cell surface membrane. rough endoplasmic reticulum vesicle forming secretory vesicle pinched off substances released outside the cell secretory vesicle fuses with cell surface membrane Processes in the Golgi Apparatus vesicle pinched off 2. Vesicles then fuse with the Golgi apparatus and release their contents into the Golgi apparatus. The substances made by the ER may be modified inside the Golgi apparatus .  vesicle fusing with  Golgi apparatus Golgi apparatus
In animal cells   organize the assembly of spindle microtubules during cell division.  Consists of two short cylinders, facing right angles at each other Centrioles Function Structure Organelle
In animal cells ,[object Object],[object Object],[object Object],Vacuole Function Structure Organelle
In plant cells contains cell sap such as nutrients and mineral salts Fluid filled space surrounded by a partially membrane known as tonoplast Vacuole Function Structure Organelle
In plant cells ,[object Object],[object Object],Chloroplast Function Structure Organelle
In plant cells ,[object Object],[object Object],[object Object],[object Object],Cell wall Function Structure Organelle
Differences between animal  and plant cell Animal Plant Cell wall absent present Chloroplasts absent present Vacuoles small and many usually large and central Stores food as glycogen granules starch granules
Specialized cells ,[object Object],[object Object],[object Object],[object Object],[object Object]
Specialised / Differentiated cells Differentiation: A process in which the zygote undergoes a change from a simple to complex structure. (contains  DNA from both parents)
cell membrane Cytoplasm with a red pigment protein called haemoglobin.  It carries oxygen.
Red blood cells ,[object Object],[object Object],Adaptation: Circular,  biconcave  shape Function: Increases  surface area to volume ratio . Thus, oxygen diffuse in and out at a faster rate.
Red blood cells ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Root hair ,[object Object],[object Object],[object Object],Cellulose cell wall nucleus Central vacuole Plasma membrane Cytoplasm
Structure of the root hair cell in relation to its function ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Root hair cell
The Xylem Vessel
Xylem cells ,[object Object],[object Object],[object Object]
[object Object],[object Object],Xylem Vessel
Young Xylem vessels   Matured    xylem    vessels
The Xylem Vessel ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Division of labour ,[object Object],[object Object],[object Object]
Division of labour ,[object Object],[object Object],[object Object]
Specialised Cells, Tissues, Organs & Systems A group of cells work together to form a  tissue . intestinal epithelium (tissue) made up of intestinal epithelial cells epithelium in the trachea (tissue) made up of epithelial cells and gland cells cartilage in the trachea (tissue) made up of connective tissue cells  epithelium in the lungs (tissue) made up of epithelial cells connective tissue in the lungs made up of connective tissue cells muscle cell neurones intestinal epithelial cell epithelial cell gland cell muscle tissue made up of muscle cells nervous tissue made up of neurones (nerve cells) connective tissue cell connective tissue cell epithelial cell
Specialised Cells, Tissues, Organs & Systems Different tissues combine to form an  organ . trachea (organ) lungs (organs) stomach (organ) intestine (organ) muscle tissue cartilage (tissue) muscle tissue connective tissue nervous tissue intestinal epithelium (tissue) epithelium (tissue) epithelium (tissue)
Specialised Cells, Tissues, Organs & Systems Several organs work together to make up an  organ system . lungs (organs) trachea (organ) intestine (organ) stomach (organ) digestive system (organ system) respiratory system (organ system)
Specialised Cells, Tissues, Organs & Systems human (organism) digestive system (organ system) respiratory system (organ system) Various organ systems work together to make up an  organism .

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Chapter 2 cells 2011

  • 1. Chapter 2: Cells Chapter 2- Cells
  • 2.
  • 3. The animal cell (3-D) Nucleus Vacuoles Plasma Membrane Mitochondrion Nucleolus Cytoplasm Golgi apparatus Rough endoplasmic reticulum
  • 4. Label the parts of an animal cell.
  • 5. The plant cell (3-D) Cell wall Plasma Membrane Central vacuole Chloroplasts Mitochondrion Nucleus Cytoplasm Nucleolus Golgi apparatus Rough endoplasmic reticulum Smooth endoplasmic reticulum
  • 6. Label the parts of a plant cell.
  • 7.
  • 8. 3-D structure of a chloroplast
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16. 1. Vesicles transport substances within the cell. Small vesicles containing substances made by the ER are pinched off from the ER. How substances made by the endoplasmic reticulum enter the Golgi apparatus and are finally secreted out of the cell rough endoplasmic reticulum vesicle forming Processes in the Golgi Apparatus
  • 17. 1. Vesicles transport substances within the cell. Small vesicles containing substances made by the ER are pinched off from the ER. How substances made by the endoplasmic reticulum enter the Golgi apparatus and are finally secreted out of the cell rough endoplasmic reticulum vesicle forming vesicle pinched off Processes in the Golgi Apparatus
  • 18. 1. Vesicles transport substances within the cell. Small vesicles containing substances made by the ER are pinched off from the ER. 2. Vesicles then fuse with the Golgi apparatus and release their contents into the Golgi apparatus. The substances made by the ER may be modified inside the Golgi apparatus. How substances made by the endoplasmic reticulum enter the Golgi apparatus and are finally secreted out of the cell rough endoplasmic reticulum vesicle forming vesicle fusing with Golgi apparatus Golgi apparatus vesicle pinched off Processes in the Golgi Apparatus
  • 19. 1. Vesicles transport substances within the cell. Small vesicles containing substances made by the ER are pinched off from the ER. 4. Secretory vesicles fuse with the cell surface membrane and their contents are released outside the cell. How substances made by the endoplasmic reticulum enter the Golgi apparatus and are finally secreted out of the cell 3. Secretory vesicles containing these modified substances are pinched off from the Golgi apparatus. They then move to fuse with the cell surface membrane. rough endoplasmic reticulum vesicle forming secretory vesicle pinched off substances released outside the cell secretory vesicle fuses with cell surface membrane Processes in the Golgi Apparatus vesicle pinched off 2. Vesicles then fuse with the Golgi apparatus and release their contents into the Golgi apparatus. The substances made by the ER may be modified inside the Golgi apparatus . vesicle fusing with Golgi apparatus Golgi apparatus
  • 20. In animal cells organize the assembly of spindle microtubules during cell division. Consists of two short cylinders, facing right angles at each other Centrioles Function Structure Organelle
  • 21.
  • 22. In plant cells contains cell sap such as nutrients and mineral salts Fluid filled space surrounded by a partially membrane known as tonoplast Vacuole Function Structure Organelle
  • 23.
  • 24.
  • 25. Differences between animal and plant cell Animal Plant Cell wall absent present Chloroplasts absent present Vacuoles small and many usually large and central Stores food as glycogen granules starch granules
  • 26.
  • 27. Specialised / Differentiated cells Differentiation: A process in which the zygote undergoes a change from a simple to complex structure. (contains DNA from both parents)
  • 28. cell membrane Cytoplasm with a red pigment protein called haemoglobin. It carries oxygen.
  • 29.
  • 30.
  • 31.
  • 32.
  • 34.
  • 35.
  • 36.
  • 37. Young Xylem vessels Matured xylem vessels
  • 38.
  • 39.
  • 40.
  • 41. Specialised Cells, Tissues, Organs & Systems A group of cells work together to form a tissue . intestinal epithelium (tissue) made up of intestinal epithelial cells epithelium in the trachea (tissue) made up of epithelial cells and gland cells cartilage in the trachea (tissue) made up of connective tissue cells epithelium in the lungs (tissue) made up of epithelial cells connective tissue in the lungs made up of connective tissue cells muscle cell neurones intestinal epithelial cell epithelial cell gland cell muscle tissue made up of muscle cells nervous tissue made up of neurones (nerve cells) connective tissue cell connective tissue cell epithelial cell
  • 42. Specialised Cells, Tissues, Organs & Systems Different tissues combine to form an organ . trachea (organ) lungs (organs) stomach (organ) intestine (organ) muscle tissue cartilage (tissue) muscle tissue connective tissue nervous tissue intestinal epithelium (tissue) epithelium (tissue) epithelium (tissue)
  • 43. Specialised Cells, Tissues, Organs & Systems Several organs work together to make up an organ system . lungs (organs) trachea (organ) intestine (organ) stomach (organ) digestive system (organ system) respiratory system (organ system)
  • 44. Specialised Cells, Tissues, Organs & Systems human (organism) digestive system (organ system) respiratory system (organ system) Various organ systems work together to make up an organism .

Notes de l'éditeur

  1. Figure 2.4 page 22
  2. Figure 2.20 page 27
  3. Figure 2.20 page 27
  4. Figure 2.20 page 27
  5. Figure 2.20 page 27