CH.16-PLANT AND ANIMAL HORMONES1. The word hormone is derived from the Greek word _________.2. Vertebrate animals possess a diversified communication system to co-ordinate physiological andmetabolic functions by _________.3. Plant hormones are organic molecules that are produced at extremely high concentration inplants. These molecules control ______________ and _________ responses.4. Expand the following. 1. ABA2. PAA3. IAN4. TSH5. ACTH6.GTH7. FSH8.LH9.PRL10.T311.T412. BMR13. ADH14. GH15. 2,4D5. What are five major classes of plant hormones?6. Went's Experiment.a)Went's Experiment Frits Warmolt Went (1903-1990), a _________ biologist demonstrated the existenceand effect of auxin in _________ . He did a series of experiments in _______ coleoptiles.b)In his first experiment he removed the tips of Avena coleoptiles. The cut tips did not ________ indicating that the tips produced something essential for ________ .c)In Went's second experiment he placed the ________ blocks on the decapitated ________ tips. The coleoptile tips did not show any response.d)In his next experiment he placed the _________ on agar blocks.e)After an hour, Went discarded the tips and placed this agar block on the decapitated coleoptile.f)It grew _______ indicating that some chemical had diffused from the cut _______ into the agar block which stimulated the growth.g) From his experiments Went concluded that a chemical diffusing from the tip of coleoptiles wasresponsible for _________ and he named it as "Auxin" meaning _________.​