Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Field Officer (Main Examination)' And exam conducted in the year 2023. And Question paper code was '161/2023'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
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Which part of the heart conducting system is responsible for initiating the electrical impulses
that stimulate the heart to contract?
(^) Atrioventricular (AV) Node (B) Sinoatrial (SA) Node
(C) Bundle of His (D) Purkinje fibers
When an electrical impulse reaches the Purkinje fibers, what action do they initiate in the
heart?
(A) Contraction of the atria ൯) Relaxation of the ventricles
(C) Contraction of the ventricles (D) Stimulation of the SA node
Which blood cells are formed in the bone marrow from magakaryocytes?
(^) Erythrocytes (B) Monocytes
(0 Basophils (D) Platelets
What is the primary factor that shifts the oxyhemoglobin dissociation curve to the right?
(A) Decreased CO: levels
൯) Increased pH (alkalosis)
(C) Decreased temperature
(D) Increased 2, 3-BPG (2, 3 — bisphosphoglycerate)
During muscle contraction, which molecule binds to calcium ions to initiate the interaction
between actin and myosin?
(A) Troponin ൯) Tropomyosin
(C) Myosin 0) Titin
The neurohypophysis, is composed mainly of glial-like cells called :
(A) Pituicytes (8) Astrocytes
(C) Microglia (D) Oligodendrocytes
Which structure is responsible for the storage and release of calcium ions in striated muscle
cells?
(A) Sarcolemma (B) Sarcoplasmic reticulum
(൮ T-tubules (D) Myofibrils
161/2023-M 14 A