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

Dilation of blood vessels, increase in fat synthesis, low blood sugar and inflammation of stomach are due to the consumption of

Receptors for protein hormones are located

Match the Column-I with Column-II:

Column I	Column II
(a) P-wave	(i) Depolarisation of ventricles
(b) QRS complex	(ii) Repolarisation of ventricles
(c) T-wave	(iii) Coronary ischemia
(d) Reduction in the size of T-wave	(iv) Depolarisation of atria
	(v) Repolarisation of atria

Which of the following structure is present inside the larynx of the respiratory system?

Amniocentesis is a technique to:

Statement I: Health could be defined as a state of complete physical, mental and social well being.
Statement II: Infectious diseases are easily transmitted from one person to another.

Surrogate mother is

The cup-shaped cavity for the articulation of the head of the femur is called

Spermatogonia undergo ....... to produce spermatozoa

Which of the following statements are correct for transport of carbon dioxide ?
(i) Nearly 20-25 per cent of CO₂ is transported by RBCs as carbamino-haemoglobin.
(ii) 70 percent CO₂ is carried as bicarbonate.
(iii) About 7 per cent of CO₂ is carried in a dissolved state through plasma.
(iv) Binding of carbon dioxide with haemoglobin is related to the partial pressure of CO₂
(v) pO₂ is a major factor which could affect binding of carbon dioxide with haemoglobin.
(vi) When pCO₂ is low and pO₂ is high as in the tissues, more binding of carbon dioxide occurs whereas.
(vii) When the pCO₂ is high and pO₂ is low as in the alveoli, dissociation of CO₂ from carbamino- haemoglobin takes place.
(viii) Every 100 ml of deoxygenated blood delivers approximately 4 ml of CO₂ to the alveoli.