Question 1: Palette 1/9

BITSAT 2025 MCQ

Angular stomatitis and cracked lips are caused by deficiency of

A

niacin

B

riboflavin

C

vitamin C

D

vitamin A

Question 2: Palette 2/9

BITSAT 2025 MCQ

A tetrapeptide is formed from four amino acids: alanine, serine, glycine, and valine. The C-terminal is fixed as alanine, and the N-terminal amino acid is chiral. Determine the number of possible sequences.

A

4

B

6

C

8

D

12

Question 3: Palette 3/9

BITSAT 2024 MCQ

Cheilosis and digestive disorders are due to deficiency of

A

Vitamin A

B

Thiamine

C

Riboflavin

D

Ascorbic acid

Question 4: Palette 4/9

BITSAT 2024 MCQ

A tetrapeptide is made of naturally occuring alanine, serine, glycine and valine. If the $ C $-terminal amino acid is alanine and N-terminal amino acid is chiral, the number of possible sequence of the tetrapeptide is

A

4

B

8

C

6

D

12

Question 5: Palette 5/9

BITSAT 2023 MCQ

Glucose and mannose are related as

A

epimers

B

anomers

C

ketohexoses

D

disaccharides

Question 6: Palette 6/9

BITSAT 2023 MCQ

A certain compound gives negative test with ninhydrin and positive test with Benedict's solution, it is

A

an amino acid

B

a monosaccharide

C

a lipid

D

a protein

Question 7: Palette 7/9

BITSAT 2022 MCQ

Glucose reacts with X number of molecules of phenyl hydrazine to yield osazone. The value of X is,

A

three

B

two

C

one

D

four

Question 8: Palette 8/9

BITSAT 2021 MCQ

Maltase converts maltose into

A

glucose

B

sucrose

C

fructose

D

starch

Question 9: Palette 9/9

BITSAT 2020 MCQ

Which of the following statement is incorrect?

A

$\alpha$-D-fructose and $\beta$-D-fructose are enantiomers of each other.

B

D-glyceraldehyde and L-glyceraldehyde are enantiomers of each other.

C

The reverse carbohydrate of animals is glycogen.

D

Aldohexoses which react with phenyl hydrazine to given identical osazones are C-2 epimers.