Which of the following group are supported by incomplete cartilaginous rings? Pharynx, primary & tertiary bronchi and initial bronchioles. Trachea, primary & secondary bronchi, and initial bronchioles Larynx, primary, secondary and tertiary bronchi, and initial bronchioles Trachea, primary, secondary and tertiary bronchi, and initial bronchioles

Assertion: Carbon dioxide is carried in the plasma mainly as HCO ions. Reason: Enzyme carbonic anhydrase of RBC, catalyses the formation of HCO ions that enter plasma.

Alveolar cavity is the main site of exchange of respiratory gases 1) t 2)f 3) 4)

As blood becomes fully O, saturated, haemoglobin combines with molecule(s) of oxygen 1) 16 2)2 3) 4 4)8

Nodal tissue/musculature in human heart has🥭 the ability to generate action potential due to any external stimuli. two patches, one in atrium and other in ventricle purkinje fibres throughout the ventricular musculature atrioventricular node, also called pacemaker

The pneumotaxic centre that can moderate the function of respiratory rhythm centre is located in 1) dorsal side of medulla 2)ventral side of medulla 3) aortic arch and carotid artery 4)pons varoli

Sequence the following steps in the blood clotting process A. Conversion of prothrombin to thrombin B. Formation of fibrin threads from fibrinogens C. Formation of thronbokinase D. Release of clotting factors by platelets and injured tissues 1) C,D,B,A 2)D,C,B,A 3) A,B,C,D 4)D,C,A,B

The urge to inhale in humans results from 1) rising pCO2 2) rising pO2 3) falling pCO2 4)falling pO2

S1: the role of oxygen in the regulation of respiratory rhythm is quite in significant S2: the SAN can generate the maximum number of action potential 70 to 75 per minute and is responsible for initiating and maintaining the rhythmic contractile activity of the heart

Every 100 ml of oxygenated blood delivers following amount of oxygen to the tissues under normal physiological condition 1) 20 ml 2) 5 ml 3) 4 ml 4) 15 ml

____in carbon dioxide in your blood which causes _____in pH would cause your breathing to speed 1) increase , rise 2) increase, drop 3) decrease, rise 4) decrease, drop

The total volume of air a person can expire after a normal inspiration is called 1) inspiratory capacity 2) vital capacity 3) expiratory capacity 4) functional residual capacity

Which one of the following statement is incorrect? Heart muscles are striated and involuntary. The muscles of hands and legs are striated and voluntary The muscles located in the inner walls of alimentary canal are striated and involuntary Muscles located in the reproductive tracts are unstriated and involuntary.

Angiotensinogen------- Angiotensin . Identify enzyme ACE Angiotensinogen Aldosterone Renin

Consider the following statements: (A) Thin filament in a myofibril are found firmly attached to the M-line. (B) M-line is a thin membrane in the middle regions of thick-filaments. Select the correct option. A is true, B is false Both A and B are true A is false, B is true Bath A and B are false

Which of the following are parts of a nephron directly involved in the reabsorption process? (A) Collecting Duct (B) Glomerulus (C) Proximal Convoluted Tubule (D) Distal Convoluted Tubule (E) Bowman's Capsule Choose the correct answer from the options given below: (B), (C), and (E) only (A) (C) and (D) only (C) (D) and (E) only

. Assertion: Lungs, liver and skin also help in the elimination of excretory wastes. Reason: Our lungs remove large amounts of CO, and significant quantities of water every day.;; Both Assertion and Reason are True but Reason is correct explanation of the Assertion Both Assertion and Reason are True but Reason is not a correct explanation of the Assertion Assertion is True but the Reason is False Assertion is False but the Reason is True

Statement-1: Troponin is distributed at regular intervals on tropomyosin. Statement-II: Troponin is a simple regulatory protein. Both Statement-l and Statement-ll are correct Both Statement-l and Statement-ll are incorrect. Statement-l is correct & Statement-ll is incorrect. Statement-l is incorrect & Statement-Il is correct.

Which of the following structures is correctly organized from large to small?;; Muscle Muscle cell. Myofibril Sarcomeres Filaments Muscle. Muscle fibres, Sarcomeres, Filaments. Myofibrils. Muscle Sarcalemma Myofibrils Actinamerits, Myosin luments. Muscle cells, Myofibrils, Filaments. Sarcoplasm

(A)-(iii) (B)-(v) (C)-(iv) (D)-(ii) (E)-(i) (A)-(iii) (B)-(iv) (C)-(i) (D)-(v) (E)-(ii) (A)-(i) (B)-(ii) (C)-(ⅱ) (D)-(v) (E)-(iv) (A)-(iii) (B)-(i) (C)-(iv) (D)-(v) (E)-(ii)

The increase in osmolarity from outer to inner medullary interstitium is maintained due to (A) Close proximity between Henle's loop and vasa recta (8) Counter current mechanism (C) Selective secretion of HCO, and hydrogen ions in PCT (D) Higher blood pressure in glomerular capillaries (A) and (D) (A) ( B)and (C) (A) and (B) Only (B)

How many statements are incorrect? (A) ANF causes constriction of blood vessels. (B) An increase in blood pressure can increase the glomerular blood flow and thereby the GFR (C) Osmoreceptors in the body are activated by changes in blood volume only. (D) Angiotensin II is a powerful vasoconstrictor.;;; One Two Three Four

Assertion: Human kidneys can produce urine nearly four times concentrated than the initial filtrate formed. Reason: Presence of interstitial gradient helps in an easy passage of water from the collecting tubule thereby concentrating the filtrate.

If the receptors are removed from post-synaptic membrane, then:: Synaptic transmission will be faster Chemical synaptic transmission will become slow Chemical synaptic transmission will not occur Synaptic transmission will not be affected

Statement-l: At electrical synapses, the membranes of pre and post-synaptic neurons are in very close proximity. Statement-II: Electrical current can flow directly from one neuron into the other across these synapses. A. Statement I and Statement II both are correct. B. Statement I is correct but Statement II is incorrect. C. Statement I is incorrect but Statement II is correct. D. Both Statements are incorrect.

Which of the following given statements is/are correct? (A) The CNS consists of the brain and peripheral nerves. (B) Afferent fibres transmit sensory information from the CNS to the peripheral tissues/organs. (C) The PNS comprises the nerves associated with the CNS. (D) Efferent fibres carry motor commands from the peripheral tissues/organs to the CNS. (E) The nervous system is responsible for sensory perception, motor control, and information processing. (A) and (B) only (A), (B) and (E) only (C) and (E) only (D) and (E) only

Statement-I: Schwann cells are present only in unmyelinated axons. Statement-II: Schwann cells has a function of myelin formation in PNS.;; Both Statement-l and Statement-ll are correct. Both Statement-l and Statement-ll are incorrect. Statement-I is correct & Statement-ll is incorrect. Statement-l is incorrect & Statement-Il is correct.

Assertion: The higher amount of CO2, can diffuse through diffusion membrane per unit difference in partial pressure as compared to O2 Reason: Solubility of CO2, is 20-25 times higher than that of O2

Which one of the following statements is incorrect? Mesoglea is present in between ectoderm and endoderm in Obelia Asterias exhibits radial symmetry. Fasciola is a pseudocoelomate animal.. Taenia is a triploblastic animal

Head of the cockroaches triangular in shape and lies posteriorly at right angles to the longitudinal body axis T F

How many ova are laid by a female frog at a time? 100-200 500-1000 2500-3000 5000-6000

The macro molecules from cytoplas man organelles forms the acid insoluble fraction T F

Statement-I: Breathing becomes difficult in asthma. Statement-II: Asthma occurs due to inflammation of bronchi and bronchioles. A. Statement I and Statement II both are correct. B. Statement I is correct but Statement II is incorrect. C. Statement I is incorrect but Statement II is correct. D. Both Statements are incorrect.

Assertion (A) Cardiac muscle tissue is a contractile tissue present only in heart. Reason (R) Cardiac muscle tissue provides rhythmic contraction to the heart.

Which of the following statement about enzymes is true? (A) Enzymes are proteins whose three dimensional shape is the key to their function (B) Enzymes speed up reactions by lowering activation energy (C) Enzymes are highly specific for reactions (D) An enzyme like any protein has the secondary and tertiary structure (E) The energy input needed to start a chemical reaction is called activation energy 1)(B) and (D) only 2)All except (E) 3)(D) and (E) only 4)All the statements are correct

The timely detection of STIs is hindered by which of the following factors? Absence of advanced diagnostics Social stigma attached to STIs Initial asymptomatic condition of patients Both (b) and (c)

Lippes loop prevent contraception by:: preventing ovulation phagocytosis of sperms suppressing sperm motility All of these

Statement I: In mammals, the female secondary sexual characters are developed by gonadotropins. Statement-II: Gonadotropins are secreted by Graafian follicle. A. Statement I and Statement II both are correct. B. Statement I is correct but Statement II is incorrect. C. Statement I is incorrect but Statement II is correct. D. Both Statements are incorrect.

1) 5 2)7 3) 6 4)8

Assertion (A): Endometrium is necessary for implantation of blastocyst. Reason (R): In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium.

Morulla, Blastocyst. Trophoblast. Inner cell mass Blastocyst, Morulla Timphor cell ma Morula, Blastocyst. Inner cell mass, Trophoblast Blastocyst. Morula, Inner cell mass, Trophoblast