A decrease in blood pressure/volume will not cause the release of
Renin
Atrial Natriuretic Factor
Aldosterone
Aldosterone
B.
Atrial Natriuretic Factor
A decrease in blood pressure / volume stimulates the release of renin, aldosterone, and ADH while increase in blood pressure / volume stimulates the release of Atrial Natriuretic Factor (ANF) which cause vasodilation and also inhibits RAAS (Renin Angiotensin Aldosterone System) mechanism that decreases the blood volume/pressure.
An important characteristic that Hemichordates share with Chordates is
Absence of notochord
Ventral tubular nerve cord
Pharynx with gill slits
Pharynx with gill slits
GnRH, a hypothalamic hormone, needed in reproduction, acts on
Anterior pituitary gland and stimulates secretion of LH and oxytocin
Anterior pituitary gland and stimulates secretion of LH and FSH
Posterior pituitary gland and stimulates secretion of oxytocin and FSH
Posterior pituitary gland and stimulates secretion of oxytocin and FSH
Which of the following statements is correct?
The ascending limb of loop of Henle is impermeable to water
The descending limb of loop of Henle is impermeable to water
The ascending limb of loop of Henle is permeable to water
Fruit and leaf drop at early stages can be prevented by the application of
Cytokinins
Ethylene
Auxins
Auxins
A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that the boy had twenty teeth.
Which teeth were absent?
Incisors
Canines
Pre-molars
Pre-molars
Select the correct route for the passage of sperms in male frogs :
Testes - Bidder's canal - Kidney - Vasa
efferentia - Urinogenital duct - Cloaca
Testes - Vasa efferentia - Kidney - Seminal
Vesicle - Urinogenital duct - Cloaca
Testes - Vasa efferentia - Bidder's canal -
Ureter - Cloaca
Testes - Vasa efferentia - Bidder's canal -
Ureter - Cloaca
Good vision depends on adequate intake of carotene rich food
Select the best option from the following statements
(a) Vitamin A derivatives are formed from carotene
(b)The photopigments are embedded in the membrane discs of the inner segment
(c) Retinal is a derivative of vitamin A
(d) Retinal is a light absorbing part of all the visual photopigments
(a) & (b)
(a), (c) & (d)
(a) & (c)
(a) & (c)
The vascular cambium normally gives rise to
Phelloderm
Primary phloem
Secondary xylem
Secondary xylem
