Human Physiology PYQs

Match List - I with List - II. Choose the correct answer from the options given below :

Cardiac activities of the heart are regulated by: A. Nodal tissue B. A special neural centre in the medulla oblongata C. Adrenal medullary hormones D. Adrenal cortical hormones Choose the correct answer from the options given below:

Which of the following diagrams is correct with regard to the proximal (P) and distal (D) tubule ?

Identify the statement that is NOT correct. (1) Each antibody has two light and two heavy chains. (2) The heavy and light chains are held together by disulfide bonds. (3) Antigen binding site is located at C-terminal region of antibody molecules. (4) Constant region of heavy and light chains are located at C-terminus of antibody molecules.

Match List - I with List - II. Choose the correct answer from the options given below :

After maturation, in primary lymphoid organs, the lymphocytes migrate for interaction with antigens to secondary lymphoid organ(s) / tissue(s) like: A. thymus B. bone marrow C. spleen D. lymph nodes E. Peyer's patches Choose the correct answer from the options given below :

Consider the following statements regarding function of adrenal medullary hormones : A. It causes pulmonary constriction B. It is a hyperglycemic hormone C. It causes piloerection D. It increases strength of heart contraction Choose the correct answer from the options given below :

Which of the following hormones released from the pituitary is actually synthesized in the hypothalamus?

In frog, the Renal portal system is a special venous connection that acts to link :

Match List - I with List - II. Choose the correct answer from the options given below:

The cofactor of the enzyme carboxypeptidase is:

Match List I with List II Choose the correct answer from the options given below:

Which of the following factors are favourable for the formation of oxyhaemoglobin in alveoli?

Match List I with List II : Choose the correct answer from the options given below:

Given below are two statements : Statement I : In the nephron, the descending limb of loop of Henle is impermeable to water and permeable to electrolytes. Statement II : The proximal convoluted tubule is lined by simple cuboidal brush border epithelium and increases the surface area for reabsorption. In the light of the above statements, choose the correct answer from the options given below :

Which of the following is not a steroid hormone?

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : FSH acts upon ovarian follicles in female and Leydig cells in male. Reason R : Growing ovarian follicles secrete estrogen in female while interstitial cells secrete androgen in male human being. In the light of the above statements choose the correct answer from the options given below :

Three types of muscles are given as a, b and c. Identify the correct matching pair along with their location in human body:

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby. Reason R : Colostrum contains several antibodies absolutely essential to develop resistance for the new born baby. In the light of the above statements, choose the most appropriate answer from the options given below:

Match List I with List II : Choose the correct answer from the options given below :

Following are the stages of pathway for conduction of an action potential through the heart: A. AV bundle B. Purkinje fibres C. AV node D. Bundle branches E. SA node Choose the correct sequence of pathway from the options given below :

Choose the correct statement given below regarding juxta medullary nephron.

Match List I with List II : List I A. P wave B. QRS complex C. T wave D. T-P gap List II I. Heart muscles are electrically silent. II. Depolarisation of ventricles. III. Depolarisation of atria. IV. Repolarisation of ventricles. Choose the correct answer from the options given below :

Given below are two statements : Statement I : The cerebral hemispheres are connected by nerve tract known as corpus callosum. Statement II : The brain stem consists of the medulla oblongata, pons and cerebrum. In the light of the above statements, choose the most appropriate answer from the options given below :

Match List I with List II : Choose the correct answer from the options given below :

Identify the correct option (A), (B), (C), (D) with respect to spermatogenesis.

Which one of the following statements is correct?

Match List I with List II with respect to human eye. Choose the correct answer from the options given below:

Vital capacity of lung is ________.

Match List I with List II. Choose the correct answer from the options given below:

Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by-

Match List I with List II. Choose the correct answer from the options given below:

Given below are statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Nephrons are of two types: Cortical and Juxta medullary, based on their relative position in cortex and medulla. Reason R: Juxta medullary nephrons have short loop of Henle whereas, cortical nephrons have longer loop of Henle. In the light of the above statements, choose the correct answer from the options given below:

The parts of human brain that helps in regulation of sexual behaviour, expression of excitement, pleasure, rage, fear etc. are :

Which of the following are NOT under the control of thyroid hormone? A. Maintenance of water and electrolyte balance B. Regulation of basal metabolic rate C. Normal rhythm of sleep-wake cycle D. Development of immune system E. Support the process of R.B.Cs formation Choose the correct answer from the options given below:

Which of the following statements are correct? A. An excessive loss of body fluid from the body switches off osmoreceptors. B. ADH facilitates water reabsorption to prevent diuresis. C. ANF causes vasodilation. D. ADH causes increase in blood pressure. E. ADH is responsible for decrease in GFR. Choose the correct answer from the options given below:

Which of the following statements are correct regarding skeletal muscle? A. Muscle bundles are held together by collagenous connective tissue layer called fascicle. B. Sarcoplasmic reticulum of muscle fibre is a store house of calcium ions. C. Striated appearance of skeletal muscle fibre is due to distribution pattern of actin and myosin proteins. D. M line is considered as functional unit of contraction called sarcomere. Choose the most appropriate answer from the options given below:

Which of the following statements are correct? A. Basophils are most abundant cells of the total WBCs. B. Basophils secrete histamine, serotonin and heparin. C. Basophils are involved in inflammatory response. D. Basophils have kidney shaped nucleus. E. Basophils are agranulocytes. Choose the correct answer from the options given below:

Given below are two statements: Statement I: The coagulum is formed of network of threads called thrombins. Statement II: Spleen is the graveyard of erythrocytes. In the light of the above statements, choose the most appropriate answer from the options given below:

Nitrogenous waste is excreted in the form of pellet or paste by:

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Osteoporosis is characterised by decreased bone mass and increased chance of fractures. Reason (R): Common cause of osteoporosis is increased levels of estrogen. In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following functions is not performed by secretions from salivary glands?

Which of the following is not the function of conducting part of respiratory system?

Given below are two statements: Statement I: Fatty acids and glycerols cannot be absorbed into the blood. Statement II: Specialized lymphatic capillaries called lacteals carry chylomicrons into lymphatic vessels and ultimately into the blood. In the light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements: Statement I: Autoimmune disorder is a condition where body defence mechanism recognizes its own cells as foreign bodies. Statement II: Rheumatoid arthritis is a condition where body does not attack self cells. In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following is a correct match for disease and its symptoms?

Under normal physiological conditions in human beings every 100 ml of oxygenated blood can deliver ______ ml of O₂ to the tissues.

Select the incorrect statement with respect to acquired immunity.

Which one of the following statements is correct?

Which of the following are not the effects of Parathyroid hormone? (a) Stimulates the process of bone resorption (b) Decreases Ca²⁺ level in blood (c) Reabsorption of Ca²⁺ by renal tubules (d) Decreases the absorption of Ca²⁺ from digested food (e) Increases metabolism of carbohydrates Choose the most appropriate answer from the options given below:

Select the incorrect statement regarding synapses:

Erythropoietin hormone which stimulates R.B.C. formation is produced by:

Succus entericus is referred to as:

Chronic autoimmune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle is called:

Persons with 'AB' blood group are called as 'Universal recipients'. This is due to:

Sphincter of Oddi is present at:

Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?

Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli.

During muscular contraction which of the following events occur? (a) 'H' zone disappears (b) 'A' band widens (c) 'I' band reduces in width (d) Myosin hydrolyzes ATP, releasing ADP and Pi (e) Z-lines attached to actins are pulled inwards Choose the correct answer from the options given below:

The Adenosine deaminase deficiency results into:

Identify the wrong statement with reference to transport of oxygen

Select the correct events that occur during inspiration. (a) Contraction of diaphragm (b) Contraction of external inter-costal muscles (c) Pulmonary volume decreases (d) Intra pulmonary pressure increases

Identify the correct statement with reference to human digestive system.

Presence of which of the following conditions in urine are indicative of Diabetes Mellitus?

Which of the following hormone levels will cause release of ovum (ovulation) from the graafian follicle?

The enzyme enterokinase helps in conversion of

Which of the following would help in prevention of diuresis?

The QRS complex in a standard ECG represents

Match the following columns and select the correct option.

Match the following columns and select the correct option.

Snow-blindness in Antarctic region is due to

Identify A, B and C in the diagrammatic representation of the mechanism of hormone action. Select the correct option from the following:

Which of the following statements is not correct?

Match the following joints with the bones involved: Select the correct option from the following:

Which of the following diseases is an autoimmune disorder?

Artificial light, extended work-time and reduced sleep-time disrupt the activity of –

Which of the following conditions will stimulate parathyroid gland to release parathyroid hormone?

Select the correct statement.

The maximum volume of air a person can breathe in after a forced expiration is known as:

All the components of the nodal tissue are autoexcitable. Why does the SA node act as the normal pacemaker?

A specialised nodal tissue embedded in the lower corner of the right atrium, close to the atrio-ventricular septum, delays the spreading of impulses to heart apex for about 0.1 sec. This delay allows:

Match the following parts of a nephron with their function: Select the correct option from the following:

Match the items in Column-I with those in Column-II. Select the correct option from the following:

Which of the following receptors are specifically responsible for maintenance of balance of body and posture?

Match the items given in Column-I with those in Column-II and choose the correct option.

Kwashiorkor disease is due to:

Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature? (a) They do not need to reproduce (b) They are somatic cells (c) They do not metabolize (d) All their internal space is available for oxygen transport Options:

A temporary endocrine gland in the human body is

A decrease in blood pressure/volume will not cause the release of

Which of the following options best represents the enzyme composition of pancreatic juice?

Hypersecretion of Growth Hormone in adults does not cause further increase in height, because

Frog's heart when taken out of the body continues to beat for some time. Select the best option from the following statements: (a) Frog is a poikilotherm (b) Frog does not have any coronary circulation (c) Heart is "myogenic" in nature (d) Heart is autoexcitable

Transplantation of tissues/organs fails often due to non-acceptance by the patient's body. Which type of immune-response is responsible for such rejections?

Lungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because of:

Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements: (a) Vitamin A derivatives are formed from carotene (b) The photopigments are embedded in the membrane discs of the inner segment (c) Retinal is a derivative of vitamin A (d) Retinal is a light absorbing part of all the visual photopigments

The hepatic portal vein drains blood to liver from

Receptor sites for neurotransmitters are present on

A baby boy aged two years is admitted to play school and passed through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?

Which of the following statements is correct?

GnRH, a hypothalamic hormone, needed in reproduction, acts on

MALT constitutes about ________ percent of the lymphoid tissue in human body

Myelin sheath is produced by

Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?

In male cockroaches, sperms are stored in which part of the reproductive system?

Smooth muscles are

Which hormones stimulate the production of pancreatic juice and bicarbonate?

The partial pressure of oxygen in the alveoli of the lungs is

Choose the correct statements.

Graves' disease is caused due to

Name the ion responsible for unmasking active sites for myosin for cross-bridge activity during muscle contraction.

Name the blood cells whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.

Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilization.

Osteoporosis, an age-related disease of skeletal system, may occur due to

Serum differs from blood in

Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because

The posterior pituitary gland is not a 'true' endocrine gland because

The part of nephron involved in active reabsorption of sodium is

In mammalian eye, the 'fovea' is the center of the visual field, where:

The primary dentition in human differs from permanent dentition in not having one of the following types of teeth:

The enzyme that is not present in succus entericus is:

Human urine is usually acidic because:

Which one of the following hormones is not involved in sugar metabolism?

Doctors use a stethoscope to hear the sound produced during each cardiac cycle. The second sound is heard when:

Name the pulmonary disease in which alveolar surface area involved in gas exchange is drastically reduced due to damage in the alveolar walls.

Which of the following hormones is produced under the condition of stress which stimulates glycogenolysis in the liver of human beings?

The initial step in the digestion of milk in humans is carried out by:

Fructose is absorbed into the blood through mucosal cells of intestine by the process called:

Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs:

Person with blood group AB is considered as universal recipient because he has:

How do parasympathetic neural signals affect the working of the heart?

Which of the following causes an increase in sodium reabsorption in the distal convoluted tubule?

Select the correct matching of the type of joint with the example in human skeletal system:

Stimulation of a muscle fiber by a motor neuron occurs at: