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JC Science
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The Cell - Chapter Notes

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Digestion and Absorption in the Small Intestine

Digestion in the first section

  • The complete small intestine is about 6 metres long.
  • The chyme from the stomach enters the first part of the small intestine. The chyme is acidic.
  • The liver makes bile.
  • The gall bladder stores the bile and releases it through the bile duct into the small intestine.
  • The bile breaks down the fats into small droplets.
  • The bile neutralises the acidic chyme.
  • The pancreas releases pancreatic juices into the small intestine.
  • Pancreatic juice contains many enzymes which further digest the chyme.
  • Pancreatic juice also neutralises the acidic chyme.

Absorption in the Second Section

  • At this... (More)

Climate Change

  • Climate is patterns of weather conditions in a large area over a long period time.
  • The sun sends out heat and light energy.
  • Some travels through the atmosphere where it is absorbed by the lands and the oceans.
  • The atmosphere is a layer of gases that surrounds the Earth. It protects Earth from the sun's harmful radiation and keeps the planet warm enough for life to exist.
  • Gases in the atmosphere known as greenhouse gases trap some of the heat energy so that it is not too hot during the day and not too cold during the night.
  • Greenhouse gases... (More)
  • H – Hydrogen
  • He – Helium
  • Li – Lithium
  • Be – Beryllium
  • B – Boron
  • C – Carbon
  • N – Nitrogen
  • O – Oxygen
  • F – Fluorine
  • Ne – Neon
  • Na – Sodium
  • Mg – Magnesium
  • Al – Aluminium
  • Si – Silicon
  • P – Phosphorus
  • S – Sulfur
  • Cl – Chlorine
  • Ar – Argon
  • K – Potassium
  • Ca – Calcium
  • Sc – Scandium
  • Ti – Titanium
  • V – Vanadium
  • Cr – Chromium
  • Mn – Manganese
  • Fe – Iron
  • Co – Cobalt
  • Ni – Nickel
  • Cu – Copper
  • Zn – Zinc
  • Ga – Gallium
  • Ge – Germanium
  • As – Arsenic
  • Se... (More)