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What happens to the walls of distal conv...

What happens to the walls of distal convoluted tubule (DCT) of a nephron when vasopressin is released by pituitary into the blood stream ?

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Wall of DCT of nephron becomes more permeable to water which increases the water reabsorption and makes the urine hypertonic
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Consider the following four statements (i) - (iv) and select the correct option stating which ones are true (T) and which ones are false (F). (i) The epithelium of proximal convoluted tubule (PCT) of nephron in the kideney has microvilli. (ii) Simple epithelium covers the dry surface of the skin, the moist surface of buccal cavity, pharynx, inner lining of ducts of salivary glands and of pancreatic ducts. (iii) The wall of internal organs such as the blood vessels, stomach and intestine contains skeletal muscle. (iv) The earthworm nervous system is basically represented paired nerve cord.

Consider the following four statements (i) - (iv) and select the correct option stating which ones are true (T) and which ones are false (F) (i) The epithelium of proximal convoluted tobule (PCT) of nephron in the kidney has microvilli (ii) Simple epithelium covers the dry surface of the skin, the moist surface of buccal cavity, pharynx, inner lining of salivary glands and of pancreatic ducts (iii) The wall of internal organs such as the blood vessels, stomach and intestine contains skeletal muscle (iv) Bone marrow in some bones is the site of production of blood cells.

Read the given statements regarding human excretory system and select the correct ones. (i). Presence of glucose in urine is known as uremia. (ii). Distal convoluted tubule (DCT) selectively secretes hydrogen ions, ammonia and potassium ions into the filtrate. (iii). Macule densa is formed by cellular modification in the distal convoluted tubule and the afferent arteriole at their contact location. (iv). Atrial natriuretic factor (ANF) can cause vasoconstriction when blood flow is low to the atria of the heart.

What happens when blood cells are placed in pure water?

MODERN PUBLICATION-EXCRETORY PRODUCTS AND THEIR ELIMINATION-REVISION EXERCISES (Very Short Answer Questions)
  1. Where counter-current mechanism operates in nephron?

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  2. Which hormone controls osmoregulation?

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  3. Name two components of Malpighian body (renal corpuscle).

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  4. Name some high threashold and non-threashold substances.

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  5. Excretory organ of insect is

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  6. Name the main nitrogenous waste excreted out in fish and in birds.

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  7. Compare between ureotelism and uricotelism.

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  8. How much is the filtering force required in the glomerulus? What is th...

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  9. Besides water, name any two main components of human sweat.

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  10. What happens to the walls of distal convoluted tubule (DCT) of a nephr...

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  11. What difference is observed in the ascending and the decending limbs o...

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  12. What are ammoniotelic animals ? Give two examples.

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  13. What are diuretic substances?

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  14. Where is urea formed inside the body?

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  15. What is significance of a frog's tadpole being ammonotelic and adult f...

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  16. How does a shark differ from a teleost fish in the chemical nature of ...

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  17. Both the thin and thick segments of the ascending limb of loop of Henl...

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  18. If, for any reason, the release of ADH is inhibited, how will this aff...

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  19. Which acids are present in sweat and sebum?

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  20. Name the nitrogenous waste excreted in larval and adult stages of frog...

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