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