Biology

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Revision as of 23:34, 10 May 2007 (view source) LeanDaKiller (Talk | contribs) (agregue cosas a "Different between Animals and Plants ") ← Previous diff		Revision as of 23:48, 10 May 2007 (view source) TomasBat (Talk | contribs) (→Different between Animals and Plants: All-round improvement) Next diff →
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	#Cells		#Cells
-	== Different between Animals and Plants ==	+	== Difference between Animals and Plants ==
-	Animals hunt their own food and Plants reproduces their own food. Also, animal can move very quickly compared with plants, plants do move but very slowly. And animals have different types of cells than Plants.	+	'''Animals'''
		+	#Hunt their own food
		+	#Bigger and faster movements than plants
		+	#React faster than plants do to the outside world
		+	#Made up of Certain organs, such as heart, lungs, brain, etc.
		+	#Made up of animal cells
-	=== Differences between animal and plant cells ===	+	'''Plants'''
		+	#Produce their own food
		+	#Smaller and slower movements than animals
		+	#React slower than plants do to the outside world
		+	#Made up of certain organs such as leaves, stem, etc.
		+	#Made up of plant cells
		+	=== Differences between animal and plant cells ===
	'''Plant cells'''		'''Plant cells'''
-	*Have tough cellulose wall	+	*Have the following "unique" organelles, the ones that are exclusive for them
-	*Have chloroplasts not all of them)	+	**Chloroplasts
-	*Have a large permanent vacuole containing cell sap	+	**Cell wall
-	*Many have box – like shape	+	**Starch grains
-	*Have a nucleus to the side of the cell	+	*Have a large permanent central vacuole containing cell sap
		+	*Have a box–like "squared" shape
		+	*Have the nucleus to the side of the cell
	'''Animal cells:'''		'''Animal cells:'''
-	*Do not have cellulose walls	+	*Have the following "unique" organelles, the ones that are exclusive for them
-	*Do not have chloroplasts	+	**Centrioles
-	*Only sometimes have small temporary vacuoles but never contains cell sap	+	**Glycogen granules
-	*Shape varies	+	*Do '''not''' have cellulose walls
-	*Have a nucleus 9in the middle of the cell	+	*Do '''not''' have chloroplasts
		+	*Only sometimes have multiple small temporary vacuoles, but these never contains cell sap
		+	*Shape varies, is indefinete
		+	*Have the nucleus in the middle of the cell
	== Specialised cells ==		== Specialised cells ==

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Revision as of 23:48, 10 May 2007

Contents 1 Characteristics of living things 2 Difference between Animals and Plants 2.1 Differences between animal and plant cells 3 Specialised cells 4 Organelles

Characteristics of living things

1. Feeding
2. Respiration
3. Excretion
4. Growth
5. Movement
6. Reproduction
7. Sensitivity
8. Cells

Difference between Animals and Plants

Animals

1. Hunt their own food
2. Bigger and faster movements than plants
3. React faster than plants do to the outside world
4. Made up of Certain organs, such as heart, lungs, brain, etc.
5. Made up of animal cells

Plants

1. Produce their own food
2. Smaller and slower movements than animals
3. React slower than plants do to the outside world
4. Made up of certain organs such as leaves, stem, etc.
5. Made up of plant cells

Differences between animal and plant cells

Plant cells

• Have the following "unique" organelles, the ones that are exclusive for them
  • Chloroplasts
  • Cell wall
  • Starch grains
• Have a large permanent central vacuole containing cell sap
• Have a box–like "squared" shape
• Have the nucleus to the side of the cell

Animal cells:

• Have the following "unique" organelles, the ones that are exclusive for them
  • Centrioles
  • Glycogen granules
• Do not have cellulose walls
• Do not have chloroplasts
• Only sometimes have multiple small temporary vacuoles, but these never contains cell sap
• Shape varies, is indefinete
• Have the nucleus in the middle of the cell

Specialised cells

Name of cell	Function	Adaptation
Red blood cell	Carry oxygen	No nucleus, large surface area
Nerve cell (neuron)	Transmit and store information	Have many connecting side branches
White blood cell	Engulf and destroy bacteria	Cytoplasm can flow
Ciliated Windpipe cells	Keep the trachea clear of dust etc.	Have tiny hairs that move from side to side
Sperm Cell	Fertilise egg cells	Has a powerful tail

Organelles

Organelles are the parts of a cell.

Structure	Animal cell	Plant cell	Function
Nucleus	Yes	Yes	Contains the information of the cell (D.N.A)
Cytoplasm	Yes	Yes	Transfers energy, makes things, stores food and contains organelles.
Mitochondria	Yes	Yes	Produces energy from food substances, Respiration
Cell Membrane	Yes	Yes	Hold the cell together. Protect the cell
Ribosome	Yes	Yes	Builds up cell’s proteins
Vacuole	Yes	Yes	Stores water. Filled with cell sop. Stores food.
Cell wall	No	Yes	Made up of cellulose. Lets water and other substances to pass through. And is not selective. Maintain cell’s shape and protect it.
Starch Grains	No	Yes	Stores food
Glycogen Granules	Yes	No	Stores food
Chloroplasts	No	Yes	Produces photosynthesis. It absorbs the energy in sun light. These contain a green substance called chlorophyll.
Enzymes	Yes	Yes	Controls rate and type of chemical reactions
Plastids	Yes	Yes	Store things