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                                           THE CHEMISTRY BEHIND RESPONSES

                           

Choose the correct answer for each question from the options given below:

1.What are hormones?

1. hormones are biological substances.
2. hormones are chemical substances produced inside the body.
3. hormones are biochemical substances that are unstable.
4. hormones are reactive radicals and cause harm. 

2.Hormones get attached to 

1. pituitary gland
2. ureter
3. receptor
4. none of the above  

  

3.Which hormone is related to regulation of blood glucose level?

1. insulin 
2. vasopressin
3. serotonin
4. auxin

4.Hormones are produced by 

1. respiratory system
2. endocrine system
3. nervous system
4. circulatory system

5. Somatotropin is a

1. stimulatory hormone
2. releasing hormone
3. inhibitory hormone
4. all of the above

6. Growth hormones releasing hormone is produced by

1. hypothalamus
2. thyroid
3. pancreas
4. none of the above

7. Which gland plays a major role in metabolism?

1. thyroid gland
2. pituitary
3. parotid gand
4. gonads

8.Which one of these is a female hormone?

1. vasopressin
2. testosterone
3. estrogen
4. glucagon

9.Which hormone is responsible for the circadian rhythm in our body?

1. melatonin
2. progesterone
3. insulin
4. luteinising hormone

10. Testosterone is 

1. female hormone
2. type of thyroid hormone
3. male hormone
4. none of the above

11. Vassopressin helps in

1. reabsorption of water
2. removal of excess water
3. helps to promote growth
4. increases metabolism

12. Glucagon shows the opposite action of

1. aldosterone
2. estrogen
3. FSH
4. insulin

13. Aldosterone acts on

1. pancreatic cells
2. kidney cells
3. liver cells
4. hypothalamus

14. Prolactin hormone increases

1. reabsorption of water
2. milk production in females
3. sexual secondary characters in males
4. maintain glucose level

15.Parathormone has opposite action of 

1. calcitonin
2. oxytocin
3. vasopressin
4. adlosterone

16. Cortisol functions as

1. immune system regulator
2. blood pressure regulator
3. blood glucose regulation
4. all of the above

18. Adrenaline is secreted during

1. stress related situation
2. relaxing situation
3. during both conditions
4. in neither conditions

19. Insulin is produced by

    1.nephrons

    2. neurons

    3. β cells of langerhans

    4. none of the above

20. Thyroxine acts in the presence of

1. calcium
2. phosphate 
3. iodine
4. magnesium

21.Which one of the following is not a female hormone?

1. estrogen
2. progesterone 
3. testosterone
4. oxytocin

22. Tetany is caused by the deficiency of

1. insulin 
2. oxytocin
3. thyroxine
4. parathormone

22. The deficiency of iodine causes

1. giotre
2. hyperthyroidism
3. tetany
4. acromegaly.

23. Diabetes mellitus is caused by

1. more insulin production
2. less insulin production
3. increased vasopressin secretion
4. increased production of adrenalin

24. Diabetes insipidus is a disorder

1. characterised by excessive urine production
2. decreased urine production
3. more sugar in blood and urine
4. none of the above.

25. Which of the following is not a disorder related to growth hormone?

1. acromegaly
2. gigantism
3. dwarfism
4. tetany

26. Which system controls the action of adrenal glands?

1. nervous system
2. circulatory system
3. digestive system
4. respiratory system

27. Which one of the following is not an endocrine gland?

1. pineal
2. thymus
3. pituitary
4. bone marrow

28.Where are adrenal glands situated?

1. above the kidney
2. below the kidney
3. above the liver
4. above the pancreas

29.Hormones are reach their targeted site with the help of

1. nervous system
2. circulatory system
3. both A and B
4. none of the above.

30 Which cells secrete glucagon?

1. α cells of langerhans
2. β cells of langerhans
3. δ cells of langerhans
4. by glomerulus

31. pheromones are

1. biochemical receptors
2. chemical signals
3. antibiotics
4. none of the above

32. pheromones are secreted by organisms

1. to attract members of same species
2. to attract members of different species
3. both A and B
4. none of the above

33. pheromones are secreted and used by

1. plants
2. animals
3. insects
4. all of the above.

34. Pheromones are secreted 

1. inside the body
2. outside the body
3. both inside and outside
4. none of the above

35. Pheromone functions 

1. during aggression to protect territory
2. as an alarm the members of the species
3. for attracting mate
4. all of the above

36.  Which one is not a plant hormone?

1. auxin
2. cytokinin
3. oxytocin
4. gibberellin

37. which one of the following is secreted in gaseous form?

1. auxin
2. cytokinin
3. ethylene
4. gibberellin

38.The major role of absiccic acid is

1. it act as growth regulator
2. it helps in ripening of fruits
3. it helps in root elongation
4. it helps in shoot elongation

39. Which one of the following is not a function of auxin

1. it acts as growth regulator
2. it helps in cell division
3. it helps in callus formation
4. helps in maintaining apical dominance

40.Which one of the following is not a synthetic auxin?

1. 2, 4 ,-D
2. 2,4, -T
3. IAA
4. NAA

41. Which of the following is not a growth regulator?

1. absiccic acid
2. IAA
3. ethylene
4. none of the above

42. Cytokinin  helps in

1. shoot formation
2. cell division
3. delay senescence
4. all of the above

43. Cytokinins are expressed more in

1. meristematic tissue
2. epithelial tissue
3. squamous layer
4. endodermis

44. First natural cytokinin isolated is

1. IAA
2. zeatin
3. NAA
4. none of the above

45.Gibberellins were named after the fungus 

1. Gibberella fujikuroi
2. Gibberella africana
3. Gibberella acuminata
4. none of the above

46.Which of the following is not a function of gibberellins?

1. promote cell elongation
2. promote internode elongation
3. help in seed germination
4. promote flowering

47. Genetic dwarfism can be reversed by using

1. gibberellins
2. ethylene
3. auxin
4. absiccic acid

48. Ethylene is present in large amounts in 

1. ripening fruits
2. young buds
3. meristematic cells
4. seeds

49.Which of the following is not a function of ethylene?

1. fruit ripening
2. induces cell division
3. promote senescence
4. promote upright growth of plants.

50. Seed dormancy occurs due to

1. absiccic acid
2. ethylene
3. cytokinin
4. auxin