12th Grade > Chemistry
BIOMOLECULES MCQs
Total Questions : 30
| Page 2 of 3 pages
Answer: Option D. -> Haemoglobin
:
D
Option (d)
Haemoglobin carries oxygen from lungs to the tissues.
:
D
Option (d)
Haemoglobin carries oxygen from lungs to the tissues.
Answer: Option B. -> Carbohydrate
:
B
(b)
Molisch's test is done for the detection of carbohydrate bond formation.
:
B
(b)
Molisch's test is done for the detection of carbohydrate bond formation.
Answer: Option B. -> Red
:
B
Option (b)
Glucose + Fehling solution ®Gluconic acid + Cu2O(Redppt)
:
B
Option (b)
Glucose + Fehling solution ®Gluconic acid + Cu2O(Redppt)
Answer: Option B. -> B and C
:
B
Option (b)
The pH at which the concentration ofcations is equal to the concentration of anions is called theisoelectric point (pI).
At thepI value, an amino acid may exist as an "internal salt" and thus thepI value typically corresponds to that pH at which the particular amino acid is least water soluble.
:
B
Option (b)
The pH at which the concentration ofcations is equal to the concentration of anions is called theisoelectric point (pI).
At thepI value, an amino acid may exist as an "internal salt" and thus thepI value typically corresponds to that pH at which the particular amino acid is least water soluble.
Answer: Option B. -> Fructose
:
B
Option (b)
Sugar Relative sweetness order-
Sucrose 100
Glucose 74
Lactose 16
Fructose 173
From this, it is clear that Fructose is the sweetest.
You might have guessed it's either Sucrose and Fructose from experience, but between these 2 we will need some proper experimental techniques to determine which is the sweeter one.
:
B
Option (b)
Sugar Relative sweetness order-
Sucrose 100
Glucose 74
Lactose 16
Fructose 173
From this, it is clear that Fructose is the sweetest.
You might have guessed it's either Sucrose and Fructose from experience, but between these 2 we will need some proper experimental techniques to determine which is the sweeter one.
Answer: Option A. -> Proteins
:
A
Option (a)
Proteins are nitrogenous compounds.
:
A
Option (a)
Proteins are nitrogenous compounds.
Answer: Option A. -> Glucose
:
A
Option (a)
Starch is a condensation polymer made up of hundreds ofglucosemonomers
:
A
Option (a)
Starch is a condensation polymer made up of hundreds ofglucosemonomers
Answer: Option D. -> Co (III)
:
D
Option (d)
Vitamin B12also called asCyanoCOBALamine( COBALT)
:
D
Option (d)
Vitamin B12also called asCyanoCOBALamine( COBALT)
Answer: Option A. -> Vitamin-D
:
A
Option (a)
VITAMINFUNCTION IN THE BODYDISEASE WHEN DEFICIENTVitamin ANeeded for healthy eyes, bones, skin, immune system, acts as an antioxidantNight blindness, hyperkeratosisVitamine DHelps calcium and phosphorous to absorb and helps the immune system.RicketsVitamine EAntioxidant, vital for smooth muscules development and nerve functionHemolytic anemia in infantsVitamine KNeeded for the blood clotting cascade and for bone metabolismBleeding diathesis
:
A
Option (a)
VITAMINFUNCTION IN THE BODYDISEASE WHEN DEFICIENTVitamin ANeeded for healthy eyes, bones, skin, immune system, acts as an antioxidantNight blindness, hyperkeratosisVitamine DHelps calcium and phosphorous to absorb and helps the immune system.RicketsVitamine EAntioxidant, vital for smooth muscules development and nerve functionHemolytic anemia in infantsVitamine KNeeded for the blood clotting cascade and for bone metabolismBleeding diathesis
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