Nutrition - Terms and One-Word Answers

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Grade 10 Science Flashcards on Nutrition - Terms and One-Word Answers, created by HermioneGrangerSep19 on 20/05/2015.
HermioneGrangerSep19
Flashcards by HermioneGrangerSep19, updated more than 1 year ago
HermioneGrangerSep19
Created by HermioneGrangerSep19 almost 9 years ago
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Resource summary

Question Answer
METABOLISM Sum total of all chemical reactions/biological processes in a living organism
ANABOLISM Metabolic synthesis of complex molecules from simple ones. Simple molecules ---------> Complex E.g. - Photosynthesis
CATABOLISM Metabolic breakdown of complex molecules into simpler ones Releases energy Complex molecules -------> Simple E.g. Respiration
NUTRITION Process of intake and utilisation of nutrients by an organism
NUTRIENT substance an organism derives from surroundings and uses as source of energy for biosynthesis of body constituents
Life on Earth is mostly dependent on _______-based food sources. CARBON
AUTOTROPHS Organisms which use energy from sun or oxidation of inorganic substrates to make organic molecules from inorganic ones. E.g. green plants and bacteria They are of two types: Photoautotrophs and Chemoautotrophs.
PHOTOAUTOTROPHS Autotrophs which light energy to make food Use photosynthesis
CHEMOAUTOTROPHS Use inorganic energy sources (hydrogen, ammonia, hydrogen sulphide, elemental sulphur) to make food
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