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10th Standard Science – Plant and Animal Hormones
5 MCQ Tests × 15 Questions = 75 Questions
Test 1 – 15 Questions
1. Gibberellins cause:
Correct Answer: B) Elongation of dwarf plants
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2. The hormone which has positive effect on apical dominance is:
Correct Answer: B) Auxin
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3. Which one of the following hormones is naturally not found in plants?
Correct Answer: A) 2, 4-D
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4. Avena coleoptile test was conducted by:
Correct Answer: D) F.W. Went
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5. To increase the sugar production in sugarcanes they are sprayed with _______
Correct Answer: A) Auxin
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6. LH is secreted by:
Correct Answer: C) Anterior pituitary
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7. Identify the exocrine gland:
Correct Answer: C) Salivary gland
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8. Which organ acts as both exocrine gland as well as endocrine gland?
Correct Answer: A) Pancreas
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9. Which one is referred as “Master Gland”?
Correct Answer: B) Pituitary gland
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10. The term Auxin was introduced by _____
Correct Answer: B) Kogi
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11. Auxins were identified by ______
Correct Answer: C) Went
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12. ______ is essential for Morphogenesis.
Correct Answer: C) Auxin and Cytokinin
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13. ______ is a powerful inhibitor of lateral bud growth in Tomato.
Correct Answer: C) ABA
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14. _____ induces bud dormancy towards approach of winter in trees.
Correct Answer: C) ABA
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15. ______ is a growth inhibitor.
Correct Answer: D) Ethylene
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Test 2 – 15 Questions
1. ______ is not a function of thyroid.
Correct Answer: D) Anti-allergic
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2. _____ is called Stress hormone.
Correct Answer: D) ABA
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3. Premature shedding is caused by ______
Correct Answer: B) ethylene
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4. _____ is a natural Auxin.
Correct Answer: A) Phenyl Acetic Acid
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5. _____ is a gaseous plant hormone.
Correct Answer: B) Ethylene
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6. _____ promotes the development and enlargement of all tissues of the body.
Correct Answer: A) GH
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7. Over secretion of growth hormone leads to _____ in children.
Correct Answer: C) Gigantism
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8. _____ is found in the chloroplast of plants.
Correct Answer: B) Abscisic Acid
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9. ABA is a powerful inhibitor of lateral bud growth in ______
Correct Answer: A) tomato
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10. Gibberellins are efficient than _____ in inducing the formation of seedless fruit.
Correct Answer: A) Auxin
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11. Dwarfism is caused by decreased secretion of ______ in children.
Correct Answer: A) GH
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12. Goitre is caused due to the inadequate supply of _____ in our diet.
Correct Answer: B) iodine
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13. Cytokinin is found abundantly in _____
Correct Answer: B) coconut
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14. _____ is known as father of Endocrinology.
Correct Answer: A) Thomas Addison
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15. ______ is the hormone secreted by Thymus.
Correct Answer: A) Thymosin
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Test 3 – 15 Questions
1. The mineralocorticoids secreted by Zona glomerulosa is ______
Correct Answer: A) aldosterone
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2. ______ first crystallised thyroxine hormone.
Correct Answer: A) Edward C. Kendal
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3. The other name of Antidiuretic hormone is
Correct Answer: A) vasopressin
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4. _____ helps to convert glucose to glycogen in liver.
Correct Answer: C) Insulin
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5. _____ helps in the breakdown of glycogen to glucose in the liver.
Correct Answer: C) Glucagon
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6. The _____ secrete glucagon.
Correct Answer: A) Alpha cells
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7. Name the plant in which auxin was first discovered?
Correct Answer: C) Oats
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8. Mark the one, which is NOT a physiological effect of auxin?
Correct Answer: B) Stem elongation
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9. Name the site of Gibberellins synthesis
Correct Answer: A) Endosperm
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10. What is bolting?
Correct Answer: A) Internode elongation
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11. Name the first naturally occurring cytokines.
Correct Answer: C) Zeatin
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12. Which of the following plant hormone causes a delay in leaf senescence?
Correct Answer: D) Cytokines
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13. Name the stress hormone of the plant.
Correct Answer: B) Abscisic acid
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14. Chemical messengers secreted by ductless glands are called _______________________.
Correct Answer: D) Hormones
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15. Which of the following is NOT an endocrine gland?
Correct Answer: A) Hypothalamus
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Test 4 – 15 Questions
1. _______________________were the first plant hormones discovered.
Correct Answer: A) Auxins
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2. _______________________are the plant hormones that promote cell division or cytokinesis in plant cells.
Correct Answer: A) Cytokinins
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3. ______________________are the most abundantly found plant hormones.
Correct Answer: C) Gibberellins
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4. ____________________is a growth inhibitor which regulates abscission and dormancy.
Correct Answer: D) Abscisic Acid
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5. Decreased secretion of growth hormone in children leads to ________________________.
Correct Answer: C) Dwarfism
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6. _____________________is responsible for production of female sex hormones estrogen and progesterone.
Correct Answer: A) Luteinizing hormone (LH)
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7. Melatonin is a hormone produced by the ______________________gland.
Correct Answer: C) Pineal
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8. ___________________is caused due to the inadequate supply of iodine in our diet.
Correct Answer: A) Goitre
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9. Insulin helps in the conversion of glucose into glycogen which is stored in _____________________.
Correct Answer: A) Liver
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10. Human insulin was first discovered in 1921 by
Correct Answer: D) All the above
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11. Testes are composed of
Correct Answer: D) All the above
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12. The maturation of ovarian follicles in the ovary is stimulated by __________________.
Correct Answer: A) Estrogen
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13. The hormone essential for the formation of placenta is ____________________.
Correct Answer: D) Progesterone
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14. ____________________has a stimulatory effect on the immune function.
Correct Answer: B) Thymosin
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15. The endocrine gland located in the upper part of the chest covering the lower end of trachea.
Correct Answer: B) Thymus
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Test 5 – 15 Questions
1. Thymosin stimulates the production and differentiation of ____________________.
Correct Answer: A) Lymphocytes
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2. ___________promote the elongation of sterns and coleoptiles.
Correct Answer: D) Auxin
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3. _____________ promote the growth of lateral buds in the presence of apical bud.
Correct Answer: A) Cytokinins
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4. ___________ inhibits the elongation of stem
Correct Answer: C) Ethylene
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5. An amino acid ___________ and iodine are involved in the formation of thyroid hormone.
Correct Answer: B) Tyrosine
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6. The alpha cells of pancreas secrete ___________
Correct Answer: A) Glucagon
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7. ____________ initiates the process of oogenesis.
Correct Answer: A) Estrogens
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8. It stimulates protein synthesis and controls muscular growth
Correct Answer: D) Testosterone
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9. It is also known as life-saving hormone
Correct Answer: B) Cortisol
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10. It is also known as emergency hormone
Correct Answer: C) Adrenaline
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11. It controls the growth of thyroid gland
Correct Answer: A) TSH
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12. It helps in the contraction of the smooth muscles of uterus at the time of child birth
Correct Answer: D) Oxytocin
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13. 'Influence' that was observed by Charles Darwin is ____________
Correct Answer: C) Auxin
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14. ___________ is a growth inhibitor hormone.
Correct Answer: D) Ethylene
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15. The hormone responsible for the production of female sex hormones is _____________.
Correct Answer: C) LH
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