Write the name of ____
a) Gaseous growth hormone known to you.
b) Standard bio assay method for auxins.
c) Hormone that can overcome the requirement of vernalization.

Write the name of ____ a) First hormone discovered in plants. b) Biological name of fungus from which Gibberellins were first isolated. c) The name given to the first cytokinin by Skoog and Miller.

(a) Write the names of (a) male sex hormone, and (b) female sex hormones (b) What name is given to the fusion of sperm and ovum? (c) Name the tissue through which the foetus gets all the requirements from the mother's body.

The same hormone can be known by various names given in which set :

(a) Write the principle involved in the vapour phase refining of metals. (b) Write the name of the metal refined by each of the following processes : (i) Mond process (ii) van Arkel method (c ) What is the role of depresent in froth floatation process ?

(a) Name the organ that produces sperms as well as secretes a hormone in human males. Name the hormone it secretes and write its functions. (b) Name the parts of the human female reproductive system where fertilization occurs. (c) Explain how the developing embryo gets nourishment inside the mother's body.

(a) Write the name and formula of an organic compound conatining a ketone functional group. (b) Wirte the names and formulae for the firest three memebers of the homologus series of chloroalkanes. (c ) How would you name the following compound? CH_(3)

Name one plant hormone which inhibits growth. Write its one more function.

(a) Write the names of five endocrine glands found in the human body. Name the hormones secreted by each gland. (b) How do hormones reach the organs they control? (c) Name the gland which controls the secretion of hormones from the pituitary. (d) How does our body respond when adrenaline is secreted in large amounts into the blood? (e) Name the disease which occurs in adults due to the deficiency of iodine in the diet. what is the main symptom of this disease?

A write name of the hormone responsibel for closure of stomata ltrbgt B who proposed relay pump theory for ascent of sap? C what is incipient plasmolysis D define the terms symplst and apoplsst in relation to translocation of water

(a) Write the percentage of land area that was covered by forests by the end of the last century. (b) Describe any two practices that led to deforestation. (c) State the consequences of deforestation. (d) Suggest a method to overcome deforestation.