BOTANY Biochemistry Mock Test 2

🟥 Biochemistry Mock Test 2

🟥 QUESTIONS :20

🟥 TIME : 20 MINS

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1) During glycoggenesis

A) gucose coverted to pyruvate

B) glycogen converted to glucose

C) glucose is converted to aminoacid

D) glucose is coverted to glycogen

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2) homopolysaccharide

A) heparin

B) globulin

C) hemicellulose

D) dextrin

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3) Which of the following carbohydrates is not a sugar?

A) Glucose

B) Fructose

C) Lactose

D) Cellulose

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4) Which of the following is the general formula of Carbohydra

A) (C4H2O)n

B) (C6H2O)n

C) (CH2O)n

D) C2H2O)n COOH

5 / 20

5)

The ring form of sugars is a
-

A) Cyclic acetal structure

B) - Cyclic hemiacetal structure -

C) Both a and b

D) - None of the above

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6) Erythrulose is a/an ___

A) aldotetrose

B) aldoheptose

C) ketotetrose

D) ketoheptose

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7) Corresponding D and L sugars are mirror images of each other in that form

A) - Enantiomeric pair

B) - Anomeric pair -

C) Optically active pair

D) - None of the above

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8) The hydroxyl group at which carbon is involved in ring formation in glucose?

A) C3

B) C4

C) C5

D) C6

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9) Which of the following Biomolecules simply refers to as “Staff of life”?

A) Lipids

B) Proteins

C) Carbohydrates

D) Vitamins

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10) Which of the following has alpha (1----4) glycosidic linkage in its molecule

A) - Maltose -

B) Cellobiose -

C) Sucrose

D) - All the above

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11)

The enzyme invertase hydrolyses sucrose into
-

A) Glucose and fructose -

B) Glucose, phosphate,and fructose -

C) None of the above

D) a and b

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12) Maltose is a disaccharide of

A) Glucose and galactose

B) Glucose and glucose

C) Glucose and lactose

D) Fructose and lactose

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13) Cleavage of fructose 1,6 bisphosphate yield

A) - Two aldoses -

B) Two ketoses -

C) An aldose and a ketose -

D) Only a ketose

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14)

Pyruvate kinase requires ...... ions for its maximum activities
-

A) Calcium -

B) Potassium -

C) Magnesium -

D) Sodium

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15) Carbohydrates are also known as___

A) Hydrates of carbon

B) Carbonates

C) Glycolipids

D) Polysaccharide.

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16) Dihydroxy acetone phosphate is reversibly converted into

A) - Glyceraldehyde 3 phosphate -

B) 1,3 bisphosphoglycerate -

C) Fructose 1,6 bisphosphate -

D) Fructose 6 phosphate

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17) : Raffinose is an example for

A) - Monosaccharide -

B) Oligosaccharide -

C) Disaccharide -

D) Polysaccharide

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18)

Raffinose is an oligosaccharide formed by the condensation of
-

A) Glucose+Fructose+Galactose -

B) lucose+Galactose+maltose -

C) Maltose+Fructose+Glucose -

D) None of the above

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19)

Cellulose is a polymer of
-

A) Alpha-glucose

B) - Alpha-fructose

C) - Beta-glucose -

D) Beta-fructose

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20)

Which of the following is a triose
-

A) Glucose -

B) Fructose

C) - Glyceraldehyde

D) - Ribulose

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BOTANY Biochemistry Mock Test 2

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