the process by which organisms obtain energy to maintain life functions and matter to create and maintain structure.
Nutrition
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These organisms synthesise their own complex organic molecules from simpler molecules using either light or chemical energy.
Autrophic Organisms
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These organisms cannot produce their own organic molecules and so consume complex organic molecules from other organisms.
Heterophobic Organisms
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These organisms have specialised digestive systems in which they ingest food, digest it and egest any indigestible remains.
Holozoic Nutrition
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They feed on dead or decaying organic material and do not have specialized digestive systems.
Saprotropic Nutrition
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microscopic saprotrophs that play an important role in decaying leaf litter and recycling nutrients such as nitrogen
Decomposers
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the breakdown of large insoluble molecules into soluble molecules to be absorbed into the blood.
Digestion
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the passage of small soluble molecules and ions through the gut wall into the blood.
Absorption
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wave of muscular contractions and relaxations of the gut wall which propel the contents along the whole length of the gut.
Peralstisis
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What Receives pancreatic juice from the pancreas and bile from the gall bladder. Chemical digestion of carbohydrates, fats and proteins by enzymes
Duodenum
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Where chemical digestion of carbohydrates, fats and proteins by enzymes. Absorption of digested food happen?
Ileum
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What is a watery secretion containing: Amylase , HCO3- and CO32- ions which creates an optimum pH for amylase
Saliva
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What is made in the liver and stored in the gall bladder and neutralises the food from the stomach
Bile
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what word is used to describe when the rabbit ingests faecal pellets so that the material passes through the gut twice to increase efficiency of digestion.
Refection
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organisms that live on (ectoparasites) or in (endoparasites) another organism, called the host, and often obtain nourishment at the expense of the host
Parasites
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Other cards in this set
Card 2
Front
These organisms synthesise their own complex organic molecules from simpler molecules using either light or chemical energy.
Back
Autrophic Organisms
Card 3
Front
These organisms cannot produce their own organic molecules and so consume complex organic molecules from other organisms.
Back
Card 4
Front
These organisms have specialised digestive systems in which they ingest food, digest it and egest any indigestible remains.
Back
Card 5
Front
They feed on dead or decaying organic material and do not have specialized digestive systems.
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