MABS Institution
11th Biology Monthly Test - 1 ( Bio - Zoology - Excretion )-Aug 2020
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Why is the urine yellow in colour?
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What is vasa recta?
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Name the three main hormones that are involved in the regulation of the renal function?
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What is the role of efferent arteriole in the formation of vasa recta?
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Write the name of the cycle which converts amino acid to urea?
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Match the following terms.
(a) \(\alpha \) -receptor - Afferent arteriole
(b) Autoregulation - Basal lamina
(c) Bowman's capsule - Capillary blood pressure
(d) Capsule fluid pressure - Colloid osmotic Pressure
(e) Glomerulus - GFR
(f) Podocyte - JG cells
(g) Vasoconstriction - Plasma proteins -
Why are Immunosuppressive drugs required for kidney transplantation?
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When a molecule or ion is reabsorbed from the lumen of the nephron, where does it go? If a solute is filtered and not reabsorbed from the tubule, where does it go?
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Differentiate protonephridia from metanephridia
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Which segment is the site of secretion and regulated reabsorption of ions and pH homeostasis?
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Name the composition of "Sebum"?
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Differentiate acute and chronic Renal failure.
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What solute is normally present in the body to estimate GFR in humans?
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How is urea formed in the human body?
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How is the process of micturition altered by toilet training?
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Identify the following structures and explain their significance in renal physiology?
(a) Juxtaglomerular apparatus
(b) Podocytes
(c) Sphincters in the bladder
(d) Renal cortex -
Explain the structure of nephron.
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What is the function of antidiuretic hormone? Where is it produced and what stimuli increases or decreases its secretion?
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What is tubular secretion? Name the substances secreted through the renal tubules.
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Identify the biological term.
Homeostasis, excretion, glomerulus, urea, glomerular filtration, ureters, urine, Bowman's capsule, urinary system, reabsorption, micturition, osmosis, glomerular capillaries via efferent arteriole, proteins.
(a) A liquid which gathers in the bladder.
(b) Produced when blood is filtered in a Bowman's capsule.
(c) Temporary storage of urine.
(d) A ball of inter twined capillaries.
(e) A process that changes glomerular filtrate into urine.
(f) Removal of unwanted substances from the body.
(g) Each contains a glomerulus.
(h) Carry urine from the kidneys to the bladder.
(i) Contains urea and many useful substances.
(j) Blood is filtered through its walls into the Bowman's capsule.
(k) Scientific term for urination.
(I) Regulation of water and dissolved substances in blood and tissue fluid.
(m) Carry urine from the kidneys to the bladder.
(n) Consists of the kidneys, ureters and bladder.
(o) Removal of useful substances from glomerular filtrate.
(p) The process by which water is transported in the proximal convoluted tubule.
(q) Where has the blood in the capillaries I surrounding the proximal convoluted tubule come from?
(r) What solute the blood contains that are not present in the glomerular filtrate? -
Explain the structure of kidney.
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Write a note on Haemodialysis.
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Malfunctioning of the kidneys can be treated by haemodialysis? Explain.
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With regards to toxicity and the need for dilution in water, how different are ureotelic and uricotelic excretions? Give examples of animals that use these types of excretion.
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Explain the tubular reabsorption process of urine formation.