10th Standard Syllabus & Materials
10th Standard
TN 10th English Prose - 4 - The Attic Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Supplementary - 3 - The Story of Mulan Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Poem - 3 - I am Every Woman Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Prose - 3 - Empowered Women Navigating The World Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Supplementary - 2 - Zigzag Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Poem - 2 - The Grumble Family Important Questions And Answers Study Material - QB365 Set A
Published on: 12/06/2021
QB365 provides detailed and simple solution for every Book back Questions in class 10 Science Subject. It will helps to get more idea about question pattern in every book back questions with solution.
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Why are thyroid hormones refered as personality hormone?
2.
What is the role of parathormone?
3.
What are chemical messengers?
4.
Bring out any two physiological activities of abscisic acid.
5.
What are synthetic auxins? Give examples.
1.
i) Thyroid hormone is essential for normal physical, mental and personality development.
ii) Hence it is called as the personality hormone.
2.
(i) The parathormone regulates calcium and phosphorus metabolism in the body.
(ii) They act on bone, kidney and intestine to maintain blood calcium levels.
3.
(i) A chemical messenger is any compound that serves to transmit a message.
(ii) Hormones act as chemical messengers which are produced by specialized glands.
4.
(i) Abscisic acid promotes the process of abscission (separation of leaves, flowers and fruits from the branch).
(ii) During water stress and drought conditions, Abscisic acid causes stomatal closure.
5.
(i) Artificially Synthesized Auxins that have properties like Auxins are called as Synthetic Auxins.
(ii) eg. 2, 4 - D (2,4 Dichlorophenoxy Acetic Acid).
10th Standard Syllabus & Materials
10th Standard
TN 10th English Prose - 2 - The Night the Ghost Got in Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Supplementary - 1 - The Tempest Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Poem - 1 - Life Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Prose - 1 - His First Flight Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
