A. Hb has 2 polypeptide chains
B. Iron is present in ferrous state
C. Hb structurally similar to myoglobin
D. Ferrous ions are in porphyrin rings
Related Mcqs:
- Iron is complexed in haemoglobin to_______________?
A. Leucine
B. Histidine
C. Isoleucine
D. Valine - Heme in haemoglobin is____________?
A. Between Helix C and D
B. Surrounded by non polar environment
C. Bonded to E7 histidine
D. Protoporophyrin IX - Both beta chains of haemoglobin are abnormal in_________________?
A. Heterozygous sickle cell trait
B. Thalassemia major
C. Homozygous sickle cell anemia
D. Megaloblastic anemia - Normal adult haemoglobin contains________________?
A. One alpha chain and one beta chain
B. One alpha chains and two beta chains
C. One beta chains and two alpha chains
D. Two alpha chains and two beta chains - Increased levels of haemoglobin A2 is characteristic of________________?
A. Sickle cell trait
B. b-thalassaemia crait
C. Glucose-6 phosphate dehydrogenase deficiency
D. a-Thalassamia - Which of the following statement about fibrinous exudate is FALSE ?
A. It is associated with many types of severe inflammation
B. It has low protein content
C. It has fibrin precipitates
D. It induces connective tissue organization - Which of the following statement is false in relation to myofacial pain dysfunction syndrome ?
A. Maily affects young females
B. is caused by muscle fatigue due to chronic oral habits are grinding and clenching
C. Treatment involves construction of occlusal guard and stress free emotional condition
D. The perioral musculature becomes hypotonic - Which of the following statement is FALSE?
A. A salivary duct obstruction can cause a unilateral swelling in the floor of the mouth that is largest before a meal and smallest after a meal
B. The lesion termed a ranula is associated with the sublingual salivary gland
C. The sublingual salivary gland is the most common site of salivary gland neoplasia
D. A pleomorphic adenoma is the most common salivary gland neoplasm - The following is false about tryptophan_____________?
A. Non-essential amino acid
B. Involved in serotonin synthesis
C. Involved in niacin synthesis
D. Involved in melatonin in synthesis - Which of the following is false about starvation ketoacidosis ?
A. Metabolic acidosis
B. Smell of acetone in breath
C. Benedict’s test +ve
D. Rothera’s test is +ve
