Explain (i) Tropic hormone.
(ii) Hormone
(iii) Diabetes insipidus

Hormone is

Diabetes insipidus is due to

"Tropic hormones"Means

Hormone is a /an

Consider the following hormones (i) Antidiuretic hormone (ii) Aldosterone (iii) Parathormone (iv) Oxytocin In the vertebrate animals, the hormones involved in the control of osmoregulation would include

Diabetes mellitus and diabetes insipidus

The diagram given below represents an endocrine gland in the human body. Study the diagram and answer the following questions : (i) Identify the endocrine gland. Where is it located? (ii) Why is the above gland referred to as the 'Master gland' ? (iii) Name the hormone which in deficiency causes Diabetes Insipidus. How does this disorder differ from Diabetes Mellitus ? (iv) Explain the term 'Hormone'. What is the role of Tropic hormones in the human body? (v) Which lobe of the above gland secretes: 1. Oxytocin 2. ACTH 3. Growth hormone.

Explain the following terms: Trophic hormone.

Read the given statements and identify the plant hormones X,Y and Z. (i) Hormone Y induces flowering in mango and also promotes rapid internode/petiole elongation in deep water rice plants and hence helping leaves or upper part of shoot to remain above water. (ii) Hormone X promotes root growth and root hair formation. (iii) Hormone Z inhibits the seed germination, increases the tolerance of plant to various stresses, play important role in seed development, maturation and dormancy.

Which of the following is true w.r.t diabetes insipidus?