Download original Bayero University Kano (BUK) Physiology MCQs Past Questions and Answers below for your practice. We discovered 223 repeated questions from 2006 to 2016. Read it below and download your complete copy now.
This includes past MCQs in physiology exams administered to students of the following departments in the UI college of medicine
- Human Physiology
- Faculty of Allied Health Sciences
- Medical Laboratory Science
- Medicine and surgery
1. Brown fat is
A. Relatively more abundant in adults than in infants
B. Richer in mitochondria than ordinary fat
C. More vascular than ordinary fat
D. Stimulated to generate more heat when its parasympathetic nerve supply is stimulated
E. Is more important than shivering in neonatal thermoregulation.
A. False – The reverse is true.
B. True – It has a higher metabolic rate than ordinary fat.
C. True – Its higher metabolic rate merits a higher rate of blood flow.
D. False – Metabolic activity in brown fat is stimulated by sympathetic nerve stimulation.
E. True – Infants do not shiver well.
2. Nitrogen balance
A. Is the relationship between the body’s nitrogen intake and nitrogen loss
B. Is positive in childhood.
C. Becomes more positive when dietary protein is increased.
D. Becomes negative when a patient is immobilized in bed.
E. Becomes less negative in the final stages of fatal starvation.
A. True – It is positive when more nitrogen is taken in than is lost.
B. True – Nitrogen intake is greater than nitrogen loss during active tissue growth.
C. False – The additional nitrogen intake is balanced by additional nitrogen loss as the extra protein is metabolized and its nitrogen excreted in the urine.
D. True – Muscles waste and the protein released is metabolized.
E. False – It becomes more negative when little but protein remains to be metabolized.
3. A person with group A blood
A. Has anti-B antibody in the plasma
B. May have the genotype AB
C. May have a parent with group O blood
D. May have children with group A or group O blood only
E. Whose partner is also A can only have children of groups A or O
A. True – This appears about the time of birth.
B. False – This would make them blood group AB.
C. True – They could inherit an A gene from the other parent to give genotype AO.
D. False – B or AB are possible depending on the partner’s genes.
E. True – In this case, neither parent has the B gene.
4. The Purkinje tissue cells in the heart
A. Conduct impulses faster than some neurons.
B. Are larger than ventricular myocardial cells.
C. Lead to contraction of the base before the apex of the heart.
D. Are responsible for the short duration of the QRS complex.
E. Are responsible for the configuration of the QRS complex.
A. True – They conduct at around 4 meters/second. Small diameter nerve fibers conduct impulses at about 1 meter per second.
B. True – This facilitates rapid conduction.
C. False – Purkinje fibers travel to the apex before proceeding to the base of the heart.
D. True – They spread depolarization rapidly over the entire ventricular myocardium.
E. True – Damage to the cells (as in bundle-branch block) changes the pattern of spread of ventricular depolarization, and hence the shape of the QRS complex.
5. In plasma, the half-life of
A. A hormone is half the time taken for it to disappear from the blood.
B. Insulin is between five and ten hours.
C. Thyroxine is longer than that of adrenaline.
D. Thyroxine is longer than that of triiodothyronine.
E. Noradrenaline is longer than that of acetylcholine.
A. False – It is the time it takes for the initial concentration to fall by half.
B. False – It is much shorter (about five minutes); this allows more precise and continuous regulation of the blood glucose level.
C. True – It is much longer since moment to moment regulation of its level is less critical.
D. True – It is more highly protein-bound which appears to prolong its life.
E. True – Acetylcholine is broken down almost immediately by cholinesterase.