Cell Adaptation D. Crowley, 2007 To know how animal and plant cells are adapted for different...
-
Upload
edwin-wheeler -
Category
Documents
-
view
213 -
download
0
Transcript of Cell Adaptation D. Crowley, 2007 To know how animal and plant cells are adapted for different...
Cell Adaptation
D. Crowley, 2007
To know how animal and plant cells are adapted for different functions
All Animal Cells look the same Animal cells
may look different but
they all have a nucleus
Some animal cells look different
because they need to do a special job
The cells of different animal cells are always
different
RecapWhat parts of a cell are found within animal cells and plant cells?
Animal cells: -NucleusCell membraneCytoplasm
Plant cells: -All of the above +Cell wallVacuoleChloroplasts
Consider the root hair cell:
It is “suited” to its job of taking in water and nutrients in 2 ways:
1) It has a large surface area
2) It has a thin cell membrane
The sperm cell is another example of a specialised cell:
Strong tail for swimming
Vacuole containing enzymes
Specialised Cells
Animal Cells
Animal Cell Cell Diagram
Function Specialisation
Red blood cells
To carry oxygen Large surface area for oxygen
Haemoglobin which binds the oxygen
Nerve cell To carry nerve impulses to different parts of the body
Long
Connections at each end
Can carry electrical signals
Female reproductive cell
To join with a male cell, and then to provide food for the new cell that has formed
Large
Contains a large amount of cytoplasm
Male reproductive cell
To reach the female cell in order to join with it
Long tail for swimming
Head which is able to penetrate the female cell
* Make the drawings as clear, and accurate as possible
Plant Cells
Plant Cell
Cell Diagram Function Specialisation
Root hair cell
To absorb water and minerals
Large surface area
Leaf cell To absorb sunlight (needed for photosynthesis)
Large surface area
Many chloroplasts (containing chlorophyll, needed for photosynthesis)