Multiple Choice QuestionsThe haemoglobin of human foetus
has a lower affinity for oxygen than that of the adult
its affinity for oxygen is the same as that of an adult
has only 2 protein subunits instead of 4
has only 2 protein subunits instead of 4
The most active phagocytic white blood cells.
neutrophils ane eosinophils
lymphocytes and macrophages
eosinophils and lymphocytes
eosinophils and lymphocytes
During the propagation of a nerve impulse, the action potential results from the movement of
K+ ions form extracellular fluid of intracellular fluid
Na+ ions from intracellular fluid to extracellular fluid
K+ ions from intracellular fluid to extracellular fluid
K+ ions from intracellular fluid to extracellular fluid
In humans, blood passes f from the post caval to the diastolic right atrium of heart due to
Pushing open of the venous valves
suction pull
Stimulation of the sino-auricular node
Stimulation of the sino-auricular node
D.
Stimulation of the sino-auricular node
the action of the heart includes contractions and relaxations of the atria and ventricles. Contraction of the heart is called systole and relaxation is called diastole. The dynamics of blood flows through the blood vessels is no exception and blood flow through the blood vessels along a pressure gradient, always moving from higher to lower pressure areas. Fundamentally, the pumping action of heart generated blood flow. The contraction of atria is initiated and activated by the sinoatrial node (SA node- Pacemaker), which spreads waves of contraction across the wall of atria via muscle fibres at regular intervals.
Consider the following statements about biomedical technologies
A) During open heart, surgery blood is circulated in the heart -lung machine.
B) Blockage in coronary arteries has removed an angiography.
C) Computerised Axial Tomography (CAT) shows detailed internal structure as seen in a section of the body.
D) X -ray provides clear and detailed images of organs like prostate glands and lungs.
Which two of the above statements are correct?
B and D
C and D
A and C
A and C
Which one of the follwing mammalian cells is not capable of metabolising glucose to carbon-dioxide aerobically?
White blood cells
Unstriated muscle cells
Liver cells
Liver cells
A drop of each of the following, is placed separately on four slides. Which of them will not coagulate?
Blood plasma
Blood serum
Sample from the thoracic duct or lymphatic system
Sample from the thoracic duct or lymphatic system
Antibodies in our body are complex
lipoproteins
steroids
prostaglandins
prostaglandins
Which one of the following has an open circulatory system?
Pheretima
Periplaneta
Hirudinaria
Hirudinaria
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