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Life Sciences

GATE Life Sciences preparation quiz covering biochemistry, physiology, genetics, microbiology, and biotechnology

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which one of the following pair of organisms contains the highest and least number of chromosomes respectively?

  1. Tympanoctomys barrerae and Myrmecia pilosula
  2. Myrmecia pilosula and Ophioglossum reticulatum
  3. Ophioglossum reticulatum and Myrmecia pilosula
  4. Tympanoctomys barrerae and Drosophila melanogaster
  5. Ophioglossum reticulatum and Tympanoctomys barrerae
Question 2 Multiple Choice (Single Answer)

The materials that can transport through phospholipid bilayer are _______________.

A. Glucose
B. Urea
C. CO2
D. Cl-
E. Ca2+

  1. A and B
  2. A and C
  3. B and C
  4. A, B and D
  5. B, C and E
Question 3 Multiple Choice (Single Answer)

Match the entries in Group - I with those in Group - II.

 
Group - I 
        </strong>|<strong>Group - II</strong>|

|P. Citric acid|1. antiseptic|
|Q. Chlorpromazine|2. artificial sweetener|
|R. Terpineol|3. antacid|
|S. Sucrolose|4. tranquilizer|

  1. P - 3, Q - 4, R - 1, S - 2
  2. P - 2, Q - 4, R - 1, S - 3
  3. P - 3, Q - 1, R - 4, S - 2
  4. P - 2, Q - 3, R - 1, S - 4
  5. P - 2, Q - 3, R - 4, S - 1
Question 4 Multiple Choice (Single Answer)

Match the column – I (product) with column – II (application) and select the correct option.

 
Column – I 
        </strong>|<strong>     Column &#x2013; II</strong>|

|A. Cyclophosphamide|2. Anti-cancer agent|
|B. Digoxin|2. Anti-cancer agent|
|C. Lactitol|3. Cardiovascular disorder|
|D. Pancuronium|4. Sweetener|

  1. A - 2, B - 3, C - 4, D - 1
  2. A - 2, B - 1, C - 4, D - 3
  3. A - 2, B - 1, C - 3, D - 4
  4. A - 3, B - 2, C - 4, D - 1
  5. A - 1, B - 2, C - 3, D - 4
Question 5 Multiple Choice (Single Answer)

An ever growing range of chemicals are being manufactured by genetically engineered organisms. Match the column - I (drugs produced by recombinant DNA technology) with column – II (used in the treatment of).

</strong
Column – I Column – II
P. Erythropoietin 1. Lymphoblastic leukaemia
Q. Factor VIII 2. Haemophilia
R. Pegaspargase 3. Anaemia
S. Superoxide dismutase 4. Heart attack
  1. P - 1, Q - 2, R - 3, S - 4
  2. P - 2, Q - 1, R - 4, S - 3
  3. P - 3, Q - 2, R - 1, S - 4
  4. P - 4, Q - 3, R - 2, S - 1
  5. P - 1, Q - 2, R - 4, S - 3
Question 6 Multiple Choice (Single Answer)

Which among the following diseases are caused by the hypersecretion of T4 hormone?

  1. Cretinism
  2. Scrofula
  3. Basedow-Graves disease
  4. Hashimoto's thyroiditis
  5. Plummer’s disease
  6. Myxoedema
  1. 1 and 3
  2. 2 and 5
  3. 3 and 6
  4. 4 and 5
  5. 5 and 6
Question 7 Multiple Choice (Single Answer)

Which of the following are examples of autosomal recessive hereditary disorders?

  1. Albinism
  2. Phenylketonuria
  3. Achondroplasia
  4. Brachydatyly
  1. 1 and 2
  2. 1 and 3
  3. 2 and 3
  4. 2 and 4
  5. 3 and 4
Question 8 Multiple Choice (Single Answer)

Which of the following diseases are transmitted by Tse-tse fly?

  1. Chagas disease
  2. Diarrhea
  3. Gambian fever
  4. Dumdum fever
  5. Malarial fever
  1. 1 and 2
  2. 1 and 3
  3. 2 and 4
  4. 2 and 5
  5. 4 and 5
Question 9 Multiple Choice (Single Answer)

Match the column – I (disease) with column – II (causative microorganism).

 
Column – I 
        </strong>|<strong>           Column &#x2013; II</strong>|

|A. Sleeping sickness|1. E. histolytica|
|B. Dysentery|2. T. gambiense|
|C. Chaga’s disease|3. T. vaginalis|
|D. Leucorrhea|4. L. donovani|
|E. Oriental sore|5. T. cruzi|

  1. A - 4, B - 3, C - 2, D - 1, E - 5
  2. A - 2, B - 1, C - 5, D - 3, E - 4
  3. A - 4, B - 2, C - 1, D - 5, E - 3
  4. A - 3, B - 5, C - 4, D - 1, E - 2
  5. A - 5, B - 2, C - 3, D - 4, E - 1
Question 10 Multiple Choice (Single Answer)

During the course of metabolism, amino acids are converted to the following seven common metabolic intermediates:

  1. Pyruvate
  2. α-ketoglutarate
  3. Succinyl-CoA
  4. Fumarate
  5. Oxaloacetate
  6. Acetyl-CoA
  7. Acetoacetate

Which of the above metabolic intermediates are exclusively glucogenic?

  1. 1, 2, 3 and 4
  2. 1, 3, 5 and 7
  3. 2, 3, 4 and 5
  4. 3, 4, 5 and 6
  5. 4, 5, 6 and 7
Question 11 Multiple Choice (Single Answer)

Match the column – I with column – II and select the correct option.

 
Column – I Column – II
A. Pyridoxal phosphate 1. D-amino acid oxidase
B. NAD+ 2. Protein kinase A
C. cAMP 3. Serine dehydratase
D. FAD 4. Alcohol dehydrogenases
  1. A - 1, B - 2, C - 3, D - 4
  2. A - 2, B - 1, C - 4, D - 3
  3. A - 2, B - 1, C - 3, D - 4
  4. A - 3, B - 2, C - 4, D - 1
  5. A - 3, B - 4, C - 2, D - 1
Question 12 Multiple Choice (Single Answer)

Match the column – I with column – II and select the correct option.

 
Column – I Column – II
A. Leukemia 1. Blood cancer
B. Carcinomas 2. Cancer of epithelial cells
C. Sarcomas 3. Cancer of connective tissues
D. Lipomas 4. Cancer of adipose tissues
  1. A - 1, B - 2, C - 3, D - 4
  2. A - 2, B - 1, C - 4, D - 3
  3. A - 4, B - 2, C - 1, D - 3
  4. A - 3, B - 2, C - 4, D - 1
  5. A - 4, B - 3, C - 2, D - 1
Question 13 Multiple Choice (Single Answer)

Match the entries in Group - I (enzyme class) with the Group - II (example).

 
Group - I Group - II
A. Oxidoreductase 1. Acetate kinase
B. Transferase 2. Lactate dehydrogenase
C. Hydrolase 3. Oxalate decarboxylase
D. Lyase 4. Sucrase
  1. A - 1, B - 4, C - 3, D - 2
  2. A - 2, B - 1, C - 4, D - 3
  3. A - 3, B - 2, C - 1, D - 4
  4. A - 4, B - 1, C - 2, D - 3
  5. A - 3, B - 4, C - 2, D - 1
Question 14 Multiple Choice (Single Answer)

Assertion: STH is secreted by posterior lobe of pituitary.
Reason: Hypersecretion of STH causes Simond’s disease.

Directions: In the following question there are two statements, Assertion (A) and Reason (R), consider both the statements independently and mark your answers as under:

1. A and R both are correct and R is correct explanation of A.
2. A and R both are correct and R is not correct explanation of A.
3. A is correct and R is incorrect.
4. A is incorrect and R is correct.
5. A and R both are incorrect.

  1. A and R both are correct and R is the correct explanation of A.
  2. A and R both are correct and R is not the correct explanation of A.
  3. A is correct and R is incorrect.
  4. A is incorrect and R is correct.
  5. A and R both are incorrect.
Question 15 Multiple Choice (Single Answer)

Assertion: Noncompetitive inhibitors do not compete with the substrate for the enzyme’s active site.
Reason: Sulfanilamide is an example of noncompetitive inhibitor.

Direction: In the following question there are two statements, Assertion (A) and Reason (R), consider both the statements independently and mark your answers as under:


1. A and R both are correct and R is correct explanation of A.
2. A and R both are correct and R is not correct explanation of A.
3. A is correct and R is incorrect.
4. A is incorrect and R is correct.
5. A and R both are incorrect.

  1. A and R both are correct and R is the correct explanation of A.
  2. A and R both are correct and R is not the correct explanation of A.
  3. A is correct and R is incorrect.
  4. A is incorrect and R is correct.
  5. A and R both are incorrect.
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