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Class 11 Chemical Coordination and Integration worksheet
CBSE Biology. Endocrine glands and hormones, their disorders and mechanism of action. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
The gland called the "master gland" is the:
- adrenal
- pancreas
- thyroid
- pituitary
Answer
(d) pituitary
it controls many other glands; it is itself regulated by the hypothalamus
- 2.
Oxytocin is secreted by the:
- atrial wall of the heart
- stomach wall
- posterior pituitary
- corpus luteum
Answer
(c) posterior pituitary
- 3.
The main function of testosterone is that it:
- prepares the body for "fight or flight"
- regulates the 24-hour (diurnal) rhythm of the body
- stimulates the adrenal cortex to make glucocorticoids
- controls male secondary sexual characters and spermatogenesis
Answer
(d) controls male secondary sexual characters and spermatogenesis
Section B · short answer
- 4.
What are hormones?
Answer
Non-nutrient chemicals that act as intercellular messengers and are produced in trace amounts by endocrine glands or cells, travelling in the blood to act on target cells.
- 5.
Which gland secretes ACTH, and what does it do?
Answer
The anterior pituitary; it stimulates the adrenal cortex to make glucocorticoids
Section C · long answer
- 6.
Describe the hormones of the anterior pituitary and their functions.
Answer
Growth hormone: growth (excess causes gigantism in children and acromegaly in adults; deficiency causes dwarfism). Prolactin: growth of mammary glands and milk formation. TSH: stimulates the thyroid. ACTH: stimulates the adrenal cortex to secrete glucocorticoids. LH and FSH (gonadotrophins): stimulate the gonads; in males LH stimulates androgen secretion and FSH with androgens regulates spermatogenesis; in females LH induces ovulation and maintains the corpus luteum, and FSH stimulates the growth of ovarian follicles. MSH (from the pars intermedia): pigmentation of the skin.
Fresh sheets for your child
In the app, every Chemical Coordination and Integration sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
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