JEE Main 2021 (Online) 25th February Morning Slot | Biomolecules Question 50 | Chemistry

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JEE Main 2021 (Online) 25th February Morning Slot

MCQ (Single Correct Answer)

-1

Which of the glycosidic linkage between galactose and glucose is present in lactose?

C-1 of galactose and C-6 of glucose

C-1 of glucose and C-6 of galactose

C-1 of galactose and C-4 of glucose

C-1 of glucose and C-4 of galactose

JEE Main 2021 (Online) 24th February Morning Slot

MCQ (Single Correct Answer)

-1

Out of the following, which type of interaction is reponsible for the stabilisation of $$\alpha $$-helix structure of proteins ?

Covalent bonding

vander Waals forces

Ionic bonding

Hydrogen bonding

JEE Main 2020 (Online) 6th September Evening Slot

MCQ (Single Correct Answer)

-1

Which one of the following statements is not true?

Lactose contains $$\alpha $$-glycosidic linkage between C₁ of galactose and C₄ of glucose

Lactose is a reducing sugar and it gives Fehling’s test

On acid hydrolysis, lactose gives one molecule of D(+)-glucose and one molecule of D(+)-galactose

Lactose (C₁₁H₂₂O₁₁) is a disaccharide and it contains 8 hydroxyl groups

JEE Main 2020 (Online) 5th September Morning Slot

MCQ (Single Correct Answer)

-1

Which of the following is not an essential amino acid :

Valine

Leucine

Lysine

Tyrosine

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