STD 12 - 7. human health and disease — NEET STD 11 Science — Question

Neural centre in medulla oblongata can moderate the cardiac function through

Which of the following organisms is known to form abscesses in human liver, lungs, brain etc.

Mammals have the ability to produce a concentrated urine. Which statement not match with production of concentrated urine ?
(i) The Henle's loop and vasa recta play a significant role in this.
(ii) Concentration of urine occurs by counter current mechanism.
(iii) The proximity between the Henle's loop and vasa recta, as well as the counter current in them increases osmolarity from cortex to medulla.
(iv) Osmolarity increasing from 300 mOsmol L' in the cortex to about 1200 mOsmol L' in the inner medulla.
(v) Osmolarity gradient from cortex to medulla is mainly caused by NaCl and urea.
(vi) Presence of osmolarity gradient helps in an easy passage of water from the collecting tubule thereby concentrating the filtrate (urine).
(vii) Human kidneys can produce urine nearly four times concentrated than the initial filtrate formed.

Given below are few layers between the glomerular and Bowman's capsule through which the filtration takes place.
i. Endothelium of the glomerular blood vessel.
ii. Middle lamella.
iii. Basement membrane between the endothelium of glomerular blood vessels and epithelium of the Bowman's capsule.
iv. Epithelium of the Bowman's capsule.
Identify the correct layers.

Formation of segmentation cavity shows

If a haemophilic man marries a woman carrier (heterozygous) for haemophilia, what would be the possibility that their daughter would be haemophilic

Nitrogenous waste is excreted in the form of pellet or paste by :