gland is an endocrine [ductless] gland. The
hormones of pituitary gland stimulate testes and ovaries
to produce their hormones. It also stimulates thyroid and
adrenals to secrete their hormones. Pituitary gland
produces growth hormone necessary for normal
growth of a person.
endocrine glands are thyroid [secretes thyroxin
controls metabolism of carbohydrates, proteins and fats
lack of which causes goiter]; pancreas [produce
insulin lack of which causes diabetes] and adrenals [produce
adrenalin which helps adjust to stress].
Fig 1: Glands of the body
These are indole compounds. Helps the cells grow longer,
rooting of stems, promote flowering, prevent early
dropping of fruits and leaves but enhance dropping of old
leaves. It is also used as weed killer of dicots.
helps in the growth of stems, elongation of fruits. All
Promote cell division.
Hastens ripening of fruits by increasing their respiration
acid: inhibits growth, leads to wilting of leaves.
causes morphosis of tadpoles into frogs. Thyroxin
needs iodine, so if the water in which tadpoles swims
don’t have iodine. The tadpoles can’t become frogs.
Official YouTube Channel of UPSCFEVER - #1
Score more than 80% marks and move ahead else stay back and read again!