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Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 8th Standard Science - English Medium - Plant and Animal Hormones
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Samacheer Kalvi 8th
English
Science
Plant and Animal Hormones
Samacheer Kalvi 8th Science - Plant and Animal Hormones - Book Back Questions in English Medium
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Question 1 Of 10
Which one of the following hormones is naturally not found in plants:
2, 4–D
G A 3
Gibberellin
IAA
Question 2 Of 10
Which organ acts as both exocrine gland as well as endocrine gland
Pancreas
Kidney
Liver
Lungs
Question 3 Of 10
LH is secreted by
Adrenal gland
Thyroid gland
Anterior pituitary
Hypothalamus
Question 4 Of 10
To increase the sugar production in sugarcanes they are sprayed with
Auxin
Cytokinin
Gibberellins
Ethylene
Question 5 Of 10
Identify the exocrine gland
Pituitary gland
Adrenal gland
Salivary gland
Thyroid gland
Question 6 Of 10
Avena coleoptiles est was conducted by
Darwin
N. Smit
Paal
F.W. Went
Question 7 Of 10
The hormone which has a positive effect on apical dominance is:
Cytokinin
Auxin
Gibberellin
Ethylene
Question 8 Of 10
Gibberellins cause:
Shortening of genetically tall plants
Elongation of dwarf plants
Promotion of rooting
Yellowing of young leaves
Question 9 Of 10
Which one is referred to as “Master Gland”?
Pineal galnd
Pituitary gland
Thyroid gland
Adrenal gland
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