Description : Which one of the following pairs of items correctly belongs to the category of organs mentioned against it? (a) Nephridia of earthworm and Malpighian tubules of cockroach - excretory organs ( ... Cucurbita - analogous organs (d) Nictitating membrane and blind spot in human eye - vestigial organs
Last Answer : (a) Nephridia of earthworm and Malpighian tubules of cockroach - excretory organs
Description : Which of the following happens in the common cockroach? (a) Malpighian tubules are excretory organs projecting out from the colon. (b) Oxygen is transported by haemoglobin in blood. (c) Nitrogenous excretory product is urea. (d) The food is ground by mandibles and gizzard.
Last Answer : (d) The food is ground by mandibles and gizzard.
Description : In which one of the following organisms its excretory organs are correctly stated? (a) Humans - Kidneys, sebaceous glands and tear glands (b) Earthworm - Pharyngeal, integumentary and septal ... Cockroach - Malpighian tubules and enteric caeca (d) Frog - Kidneys, skin and buccal epithelium
Last Answer : (b) Earthworm – Pharyngeal, integumentary and septal nephridia
Description : Malpighian tubules are analogous to
Last Answer : Malpighian tubules are analogous to A. Trachea of cockroach B. Gills C. Flame cells D. None of these
Description : Select the correct statement from the ones given below with respect to Periplaneta americana. (a) Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal ... midgut and hindgut. (d) Grinding of food is carried out only by the mouth parts.
Last Answer : (b) Males bear a pair of short thread like anal styles.
Description : Select the correct option with respect to cockroaches. (a) Malpighian tubules convert nitrogenous wastes into urea. (b) Males bear short anal styles not present in females. (c) Nervous system comprises of a ... cord and ten pairs of ganglia. (d) The forewings are tegmina which are used in fligh
Last Answer : (b) Males bear short anal styles not present in females
Description : .Malpighian tubules are (a) excretory organs of insects (b) excretory organs of annelids (c) respiratory organs of insects (d) respiratory organs of annelids.
Last Answer : (a) excretory organs of insects
Description : The excretory structures of flatworms/ Taenia are (a) flame cells (b) protonephridia (c) Malpighian tubules (d) green glands
Last Answer : (a) flame cells
Description : Match the following organisms with respective characteristics. (A) Pila (i) Flame cells (B) Bombyx (ii) Comb plates (C) Pleurobrachia (iii)Radula (D) Taenia (iv) Malpighian tubules Select the correct option from the following. (A) (B) (C) ... (i) (iv) (c) (iii) (iv) (ii) (i) (d) (ii) (iv) (iii) (i)
Last Answer : (c) (iii) (iv) (ii) (i)
Description : Select the correct statement from the ones given below with respect to Periplaneta americana (1) Grinding of food is carried out only by the mouth parts (2) Nervous system located dorsally, consists ... (4) There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut
Last Answer : (3) Males bear a pair of short thread like anal styles
Description : In female cockroach, how many ovarian tubules or ovarioles are present ?
Last Answer : In female cockroach, how many ovarian tubules or ovarioles are present ? A. 3 B. 6 C. 8 D. 16
Description : Bowman’s glands are located in the (a) anterior pituitary (b) female reproductive system of cockroach (c) olfactory epithelium of our nose (d) proximal end of uriniferous tubules.
Last Answer : (c) olfactory epithelium of our nose
Description : WRITE THE FUNTION OF EACH OF THE FOLLOWING: (a) MIDDLE PIECE OF HUMAN SPERM (b) LUTEINIZING HORMONE IN HUMAN MALES
Last Answer : ANS. (a) PROVIDES ENERGY FOR MOVEMENT DUE TO PRESENCE OF MITOCHONDRIA. (c) STIMULATES SYNTHESIS AND SECRETION OF ANDROGENS.
Description : Malpighian tube ?
Last Answer : : The number of narrow ducts adjacent to the digestive tract of grasshopper , which completes the excretory function is called Malpighian duct.
Description : What is Malpighian Organ ?
Last Answer : : Malpighian organ: The anterior end of the nephron is called the renal corpuscle or Malpighian organ. It consists of bomans capsule and glomerulus.
Description : Malpighian corpuslces occur in
Last Answer : Malpighian corpuslces occur in A. Medulla oblongata B. Cortex C. Pelvis D. Pyramid
Description : Malpighian corpuscles are present in
Last Answer : Malpighian corpuscles are present in A. Cortex B. Medulla C. Germinal cells D. None of them
Description : Match the items given in column I with those in column II and select the correct option given below. Column I Column II (Function) (Part of excretory system) A. Ultrafiltration (i) Henle's loop B. Concentration (ii) Ureter of urine C. ... (ii) (iii) (c) (v) (iv) (i) (ii) (d) (v) (iv) (i) (iii)
Last Answer : (b) (iv) (i) (ii) (iii)
Description : Four healthy people in their twenties got involved in injuries resulting in damage and death of few cells of the following. Which of the cells are least likely to be replaced by new cells? (a) Liver cells (b) Neurons (c) Malpighian layer of the skin (d) Osteocytes
Last Answer : (b) Neurons
Description : The tissue present in the lining of kidney tubules and ducts of salivary glands is -Science
Last Answer : Cuboidal epithelium
Description : why are seminiferous tubules not the same shape -Biology
Last Answer : answer:
Description : why are seminiferous tubules so long -Biology
Description : How many parts and what are the renal tubules ?
Last Answer : : Renal Tubule: The wide duct of Bowman's capsule extending from the esophagus to the collecting duct is called the renal tubule. It is divided into three parts 1. Orthopedic or proximal spiral duct 2. Henley's loop and 3. Peripheral spiral duct
Description : How many renal tubules are there in two kidneys ?
Last Answer : The two kidneys have a total of 20 lakh renal tubules.
Description : Assertion `:-` Peritubular capillaries secrete substances in the convoluted tubules. Reason `:-` Harmful and useless substances which escaped ultrafil
Last Answer : Assertion `:-` Peritubular capillaries secrete substances in the convoluted tubules. Reason `:-` Harmful ... D. If both Assertion & Reason are false.
Description : Assertion `:-` Nearly 99 percent of the filtrate has to be reabsorbed by the renal tubules. Reason `:-` Glucose is reabsorbed by active mechanism is P
Last Answer : Assertion `:-` Nearly 99 percent of the filtrate has to be reabsorbed by the renal tubules. Reason ` ... . D. If both Assertion & Reason are false.
Description : Changeable threshold material in Renal tubules
Last Answer : Changeable threshold material in Renal tubules A. Water and Glucose B. Urea & Uric acid C. Glucose & Amino acids D. Water & salts
Description : Water reabsorption in the distal parts of kidney tubules is regulated by
Last Answer : Water reabsorption in the distal parts of kidney tubules is regulated by A. STH B. TSH C. ADH D. MSH
Description : Uriniferous tubules occur in
Last Answer : Uriniferous tubules occur in A. Stomach B. Testes C. Ovary D. Kidney
Description : Release of sperms from seminiferous tubules is called
Last Answer : Release of sperms from seminiferous tubules is called A. Spermiogenesis B. Spermiation C. Spermatogenesis D. Fertilization.
Description : Connective tissue around seminiferous tubules possess endocrine cells called
Last Answer : Connective tissue around seminiferous tubules possess endocrine cells called A. leydig cells B. Sertoli cells C. Primary germ cells D. Both A and B
Description : The nutritive cells found in seminiferous tubules are:
Last Answer : The nutritive cells found in seminiferous tubules are: A. Leydig cells B. Sertolic ells C. Atretic follicular cells D. Chromaffin cells.
Description : Assertion : Formation of sperm takes place in seminiferous tubules of testes . Reason : Seminiferous tubules lined with male germ cells and sertoli ce
Last Answer : Assertion : Formation of sperm takes place in seminiferous tubules of testes . Reason : Seminiferous ... . If both Assertion & Reason are False.
Description : Outer coat of seminiferous tubules is composed of fibrous connective tissue called
Last Answer : Outer coat of seminiferous tubules is composed of fibrous connective tissue called A. Tunica ... propria C. Plica semilunaris D. Tunica albuginea
Description : Seminiferous tubules occur in the
Last Answer : Seminiferous tubules occur in the A. liver B. kidney C. ovary D. testis
Description : Seminiferous tubules are composed of
Last Answer : Seminiferous tubules are composed of A. Spermatogonia B. Glandular epithelium C. Sensory epithelium D. Germinal epithelium
Description : What structure is between the proximal and distal convoluted tubules?
Last Answer : Need answer
Description : What structure of kidney contains the collecting tubules?
Last Answer : medulla
Description : During compensation of respiratory alkalosis, all the following changes occur except (A) Decreased secretion of hydrogen ions by renal tubules (B) Increased excretion of sodium in urine (C) Increased excretion of bicarbonate in urine (D) Increased excretion of ammonia in urine
Last Answer : Answer : D
Description : All the following statements about renal tubular acidosis are correct except (A) Renal tubules may be unable to reabsorb bicarbonate (B) Renal tubules may be unable to secrete hydrogen ions (C) Plasma chloride is elevated (D) Anion gap is decreased
Description : Furosemide inhibits reabsorption of sodium and chloride in (A) Proximal convoluted tubules (B) Loop of Henle (C) Distal convoluted tubules (D) Collecting ducts
Last Answer : Answer : B
Description : Thiazide diuretics inhibit (A) Carbonic anhydrase (B) Aldosterone secretion (C) ADH secretion (D) Sodium reabsorption in distal tubules
Description : Antidiuretic hormone (A) Is secreted by hypothalamus (B) Secretion is increased when osmolality of plasma decreases (C) Increases obligatory reabsorption of water (D) Acts on distal convoluted tubules and collecting ducts
Description : Obligatory reabsorption of water (A) Is about 50% of the total tubular reabsorption of water (B) Is increased by antidiuretic hormone (C) Occurs in distal convoluted tubules (D) Is secondary to reabsorption of solutes
Description : Androgens are synthesised in (A) Leydig cells in testes (B) Sertoli cells in testes (C) Seminiferous tubules (D) Prostate gland
Last Answer : Answer : A
Description : ADH (A) Reabsorbs water from renal tubules (B) Excretes water from renal tubules (C) Excretes hypotonic urine (D) Causes low specific gravity of urine 210 MCQs IN BIOCHEMISTRY
Description : Aldosterone increases reabsorption of sodium in (A) Proximal convoluted tubules (B) Ascending limb of loop of Henle (C) Descending limb of loop of Henle (D) Distal convoluted tubules