12167567
Beschreibung
Quiz von Charlotte Willis, aktualisiert more than 1 year ago
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Erstellt von Charlotte Willis
vor fast 7 Jahre
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Frage 1
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What is a Polymer?
Antworten
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lots of monomer glued together
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large complex molecules made up of long chains of monomers
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A type of carbohydrate
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A secondary structure of a protein
Frage 2
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Monomers are [blank_start]small[blank_end], [blank_start]basic[blank_end] molecular units
Antworten
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small
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basic
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complex
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long
Frage 3
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Most Carbohydrates are...
Antworten
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small
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long chains
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Polymers
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monomers
Frage 4
Frage
Carbohydrates are made from Monosccharides?
Antworten
- True
- False
Frage 5
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The monomers which make up Carbohydrates are called [blank_start]monosaccharides[blank_end] and examples of these are [blank_start]glucose[blank_end], [blank_start]fructose[blank_end] and [blank_start]galactose[blank_end].
Antworten
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monosaccharides
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glucose
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fructose
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galactose
Frage 6
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Examples of monomers are...
Antworten
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Nucleotides
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proteins
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monosccharides
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amino acids
Frage 7
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Glucose is a [blank_start]hexose[blank_end] sugar this is a [blank_start]monosaccharides[blank_end] with [blank_start]six[blank_end] carbon atoms in each molecule.
Antworten
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hexose
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sixose
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pentose
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6
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5
-
8
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7
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monosaccharides
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polymer
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monomer
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pentose sugar
Frage 8
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What elements make up carbohydrates?
Antworten
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Carbon
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Hydrogen
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Oxygen
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Potassium
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Calcium
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Sodium
Frage 9
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There are two types of glucose [blank_start]alpha and beta[blank_end] - they're [blank_start]isomers[blank_end]
Antworten
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alpha and beta
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isomers
Frage 10
Antworten
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a-glucose
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b-glucose
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protein
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carbohydrate
Frage 11
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The OH group on b-glucose is found on the [blank_start]top[blank_end]
Antworten
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top
Frage 12
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Condensation reactions when two molecules join together to form a [blank_start]chemical bond[blank_end]. HO₂ is [blank_start]added[blank_end] to the reaction.
Antworten
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chemical bond
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peptide bond
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polymer
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added
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removed
Frage 13
Frage
Carbohydrates bond by condensation reactions
Antworten
- True
- False
Frage 14
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[blank_start]Condensation[blank_end] [blank_start]reactions[blank_end] bonds together two monosaccharides.
Antworten
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Condensation
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reactions
Frage 15
Frage
What sort of bond is between two monosaccharides?
Antworten
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Glycosidic
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Peptide
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Hydrogen
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Glucose
Frage 16
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A disaccharide is made up of [blank_start]2[blank_end] monosaccharides
Antworten
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2
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3
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4
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1
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5
Frage 17
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Glucose + Glucose = [blank_start]Maltose[blank_end]
Glucose + [blank_start]Galacose[blank_end] = Lactose
Glucose + Sucrose = [blank_start]Fructose[blank_end]
Antworten
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Maltose
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Lactose
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Fructose
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Galacose
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Glucose
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Hydrogen
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Sucrose
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Fructose
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Maltose
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Glucose
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Lactose
Frage 18
Antworten
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Condensation reaction
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Hydrolysis Reaction
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Glycosidic
Frage 19
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Condensation reaction is the breaking down of glycosidic bonds to form monosaccharides.
Antworten
- True
- False
Frage 20
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Due to hydrolysis...
Antworten
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Water is released to split the disaccharide
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water is added as it is required to split the disaccharide
Frage 21
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Hydrolysis is the opposite of condensation reaction
Antworten
- True
- False
Frage 22
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How are carbohydrates broken down into monosaccharides?
Antworten
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Condensation reaction
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Hydrolysis reaction
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Benedict's test
Frage 23
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Benedict's test is for [blank_start]sugars[blank_end]
Antworten
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sugars
Frage 24
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Sugars is the general term used for
Antworten
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Carbohydrates
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Monosaccharides
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Disaccharides
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proteins
Frage 25
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Benedict's test is positive for non-reducing sugars?
Antworten
- True
- False
Frage 26
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Reducing sugars are...
Antworten
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All monosaccharides and some disaccharides (maltose)
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All disaccharides and some monosaccharides (Glucose)
Frage 27
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The formula for monosaccharides isn
Antworten
- True
- False
Frage 28
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The formula for glucose is [blank_start]C₆H₁₂O₆[blank_end]
Antworten
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C₆H₁₂O₆
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C6H12O6
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C₂H₄O₂
Frage 29
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The test for reducing sugars is [blank_start]Benedict's test[blank_end]. The positive outcome of the test is a [blank_start]coloured[blank_end] precipitate.
Antworten
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Benedict's test
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Iodine test
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Benedicts test but extra stages before
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coloured
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brick red
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blue
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green
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colourless
Frage 30
Frage
Benedict's reagent is an acid solution of copper (II) sulfate?
Antworten
- True
- False
Frage 31
Frage
What is the chemical name for the precipitate when a reducing sugar is heated with Benedict's reagent.
Antworten
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Copper (I) oxide - insoluble
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Copper (I) oxide - soluble
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Copper (I) sulfate - soluble
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Copper (I) sulfate - insoluble
Frage 32
Frage
The first step to the benedict's test is...
Antworten
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1) Add the food sample to the test tube to be tested
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1) Heat up Benedict's reagent and heat
Frage 33
Frage
WHat are the second and third steps to Benedict's test?
Antworten
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2) Add Benedict's Reagent
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3) Heat the mixture in a gently boiling water bath for 5 mins
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2) Heat the food sample for 5mins
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3) Add Benedict's reagent to the hot food sample
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3) Heat the mixture in a boiling water bath for 5mins
Frage 34
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When there is a negative test for the Benedict's test the sample remains blue?
Antworten
- True
- False
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