The Life Processes

All cells 

:

specalised cells

plant cells

animal cells

diffusion

osmisis

photosynthesis

minerals for healthy grwoth 

boimass

carbon cycle

enzymes

digestion and enzymes

homeostasis

kidneys 

controling blood sugar

banting and best 

dna

cell division

stem cells

mendel

genetic disorders

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  • Created by: Amy
  • Created on: 10-05-11 18:37

Cells

ANIMAL CELLS:

NUCLEUS- controls the activities of the cell

CYTOPLASM- where chemical reactions take place

CELL MEMBRANE- holds the cell together

MITOCHONDRIA- respiration takes place

RIBOSOMES- Where protiens are made

PLANT CELLS:

have all the above and :

CELL WALL- protection 

CHLOROPLASTS- where phoyosyntheses takes place

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Specialised cells

PLAISADE LEAF CELL: adapted for photosynthesis

1. packed with chloroplasts

2. Tall shape meaning large surface ares absorbing co2

RED BLOOD CELLS: adapted for carrying oxygen

1. PACKED WITH HEMOGLOBIN THAT ABSORBS OXYGEN

2. NO NUCLEUS TO LEAVE A BIG SURFACE AREA

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Diffusion

DIFFUSION IS THE PASSIVE MOVEMENT OF PARTICLES FROM AN AREA OF HIGH CONCENTRATION TO AN AREA OF LOW CONCENTRATION 

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Osmosis

OSMOSIS IS THE MOVEMENT OF WATER MOLECULES ACCROSS A PARTIALLY PERMEABLE MEMBRANE FROMN A REIGON OF HIGH WATER CONCENTRATION TO A REIGON OF LOW WATER CONCENTRATION 

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Rate of photosynthesis

CARBON DIOXIDE+ WATER- GLUCOSE+OXYGEN

limiting factors

  • Light 
  • carbon dioxide
  • tempreature
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Minerals for healthy growth

Nitrates:

it there is no nitrates then plants dont grow well because the protiens in nitrates are needed for growth. 

Magnesium:

Leaves in the plant start to trun yellow as magnesium is needed to make chlorophyll and this gives the leaves their green colour. 

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Carbon cycle

when plants and animals respire they release co2 back into the air 

co2 is released into the air from decay 

co2 is removed from the air by photosynthesis

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Enzymes

become denatured is the temp is too hot or too cold

becomne denatured is the ph is too high or too low

They cayalyse reactions 

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Enzymes and digestion

amalayse- startch into simple sugars 

  • found in the silavary glands
  • small intestine and pancreas

Protease- protines into amino acids

  • small intestine and pancreas

Lipase fats into fattuy acids

  • small intestine and pancreas
  • The stomach

Bile neutralises the stomach for the enzymes to work in and emulsifies fats

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Bile

Produced in the liver 

Gall bladder is where is is sotred before being released into the small intestine. 

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Controlling blood sugar

  • blood glucode level too high insulin is added 
  • blood glucose too low insulin is not added 

Diabetes

overcome or controlled by:

  • avoiding carbs
  • injecting insulin
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Banting and best:

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