Energy for Life 3.3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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metabolism | the total of all chemcial reactions in an organism
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enzymes | protein that allow chemical reactions in cells to happen
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do enzynmes change? | no
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can enzymes be reused? | yes
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how do enzymes change large molecules? name 2 steps. | they attach to the large molecule it will help change. the enzyme causes the larger molecule to break down into 2 smaller molecules.
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organism | anything that is living
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what are the 2 groups of organisms, based on hol they get thier food? | producers - plants; consumers - do not make thier own food
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photosynthesis | the process by which producers use light energy to make sugars which can be used as food. sunlight energy is changed into chemical energy
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what is the green pigmant in a producer? | Chlorophyl
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where is the ngreen pigment in a producer found? | chloroplast
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what is the function of the green pigment in a producer? | to capture sunlight
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what does photosynthesis begin with? what raw materiels? | CO2 and H2O
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what is CO2? | carbon dioxide
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what is H2O? | water
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what is propduced by 6 molecules of carbon dioxide + 6 molecules water + light energy? | 1 molecules sugar + 6 molecules oxygen
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what is C6H12O6? | molecules of sugar (carbohydrate)
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what is 6O2? | 6 molecules of oxygen.
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what is extra sugar stored as in a plant? | starch
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what do plants use carbohydrates as? | food - to grow, maintain, reproduce
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how is photsynthesis involved in things you eat? | indirectly and directly
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respiration | a series of checmical reactions
in producers and consumers
that break down food molecules into simpler substances
and release thier stored energy.
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name 2 things your body uses the engergy produced by respiration for? | for your muscles and other body cells
for thermal (heat) energy
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what is the type of food most easily broken down by cells? | carbohydrates
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where does the respiration of carbohydrates begin? | in the cytoplasm
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what is the carbohydrate broken down into in the cytoplasm? | glucose molecules and then into 2 simplier molecules
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where arte these 2 simplier molecules broken down again? | in the mitochondria
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what does this process (respiration) of breaking down carbohydrates and then glucose use and produce? | uses oxygen
releases energy
produces CO2 and H2O as waste
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fermentation | a process by which oxygen-lacking cells and some one-celled organisms release small amounts of energy from glucose molecules
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what is produced as waste by fermentation? | alcohol, CO2, and Lactic Acid
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where does fermentation occur? | occurs in cytoplasm, but does not move to the mitochondria
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Name 4 foods or other things that bacteria can make through fermentation and the production of lactic acid. | yogurt, some cheese, solid milk, food flavors
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name a one-celled organism that uses fermentation to break down the sugar in dough | yeast
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what waste does yeast produce in the fermneation of sugar in dough? | CO2, alcohol
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respiration uses......... | sugars and oxygen
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respiration produces........... | CO2 and H2O
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photosynthesis uses.......... | CO2 and H2O
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photosynthesis produces........... | sugars and oxygen
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