2/8 quiz LEC
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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| 3 Characteristics of enzymes | 1. Specific 2. small changes 3. operate in sequence (metabolic pathways)
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| enzyme specificity determined by | 3D shape of enzyme
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| metabolic pathway | sequence of enzyme operation
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| 2 examples of End Products of Metabolism (cholesterol) | 1.Vitamin D 2.Testosterone
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| ending usually denotes an enzyme | -ase
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| enzymes are named according to 2 things | 1. substrate attacked 2. reaction type (what it does)
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| hydrase | adds H2O
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| dehydrase | takes away H2O & adds a P
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| definition of energy | capacity to do work
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| energy can be measured by | joules
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| define calorie | heat needed to raise 1g water 1°C
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| define Calorie (kcal) | heat needed to raise 1000g water 1°C
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| type of calorie assumed by grocers | Calorie (kcal)
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| define Phosphorylation | addition of a P to a chemical
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| What type of reaction is ADP + P + energy --> ATP | Phosphorylation example
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| amount of energy needed for Phosphorylation | 7 kcal
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| Why are oxidation reduction reactions important? | important because many release large quantities of energy (at least 7kcal)
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| reduction reactions that happen simultaneously | oxidation & reduction happen
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| oxidation | loss of electron
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| reduction | gain of electron
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| while one substance is being reduced | while another substance is being oxidized
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| what type of reaction and why is it important? Fe+2 --> 1e- + Fe+3 | oxidation reaction is important b/c releases energy (large amt) & puts into ATP form
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| what type of reaction? Fe+3 + 1e- --> Fe+2 | Reduction reaction example
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| A-P~P~P | ATP
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| A-P~P | ADP
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| A-P | AMP
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| A-P~P + ~ + P --> | results in A-P~P~P
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| energy required to convert ATP/ADP/AMP is called | is called work
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| anaerobic | No O2
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| Process that with anaerobic advantage | Gycolysis
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| Glycolysis takes place in the | takes place in the cytoplasm
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| Glycolysis uses | uses 2 ATP
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| 3 things about gycolysis | 1. 2 ATP 2. anaerobic 3. cytoplasm
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| 1g carb = | = 4kcal
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| 1g protein = | = 4 kcal
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| 1g fat = | = 9 kcal
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| carbohydrate metabolism uses | fats, carbs, proteins
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| used primarily for energy | glucose catabolism
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| how may steps are in glucose catabolism | 19 enzymes/steps
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| glucose catabolism creates | byproducts and 686 kcal
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| 686 kcal from glucose catabolism is used for | 262 kcal ATP and 420 kcal heat to keep body warm
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| pyruvic acid is reduced to ______ in humans | lactic acid
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| pyruvic acid is reduced to ______ in yeast | ethyl alcohol
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| pyruvic acid is reduced to ______ in other organcic molecules | Fermentation
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| lactic acid, ethyl alcohol, Fermentation | are anaerobic
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| intermediate step only happens if | only happens if O2 is present
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| lose carbon | decarboxylation
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| another name for krebs cycle | citric acid cycle
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| krebs cycle happens in | happens in mitochondrion matrix
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| 3 phases of glycolysis | 1. Glucose 6P 2. Glyceraldehyde 3P 3. Pyruvic Acid
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| excess Acetyl CoA is called | is called Ketone Bodies
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| example of ketone acid (1 of 2) | acetone
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| excess ketone bodies can lead to | can lead to ketosis and acidosis(comma)
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