The table below shows description of sizes of glomeruli renal tubules of two animals which areliving in different environmentsAnimal X Animal YGlomeruli Large and few Small and manyRenal tubules Short Long(a) Name the likely environment in which each animal lives : (i)Animal X(ii) Animal Y(b) What role does vasoconstriction play in thermoregulation
Question
The table below shows description of sizes of glomeruli renal tubules of two animals which areliving in different environmentsAnimal X Animal YGlomeruli Large and few Small and manyRenal tubules Short Long(a) Name the likely environment in which each animal lives : (i)Animal X(ii) Animal Y(b) What role does vasoconstriction play in thermoregulation
Solution
(a) (i) Animal X likely lives in a dry environment. Large and few glomeruli suggest that this animal has a lower rate of filtration, which is beneficial in a dry environment where water conservation is important. Short renal tubules also suggest less reabsorption of water, which is consistent with a need to conserve water. (ii) Animal Y likely lives in a wet environment. Small and many glomeruli suggest a higher rate of filtration, which is beneficial in a wet environment where excess water can be excreted. Long renal tubules suggest more reabsorption of water, which is consistent with a need to excrete excess water.
(b) Vasoconstriction plays a key role in thermoregulation by reducing blood flow to the skin and extremities, thereby reducing heat loss and helping to maintain body temperature. When the body is cold, vasoconstriction occurs to prevent heat loss. Conversely, when the body is hot, vasodilation occurs to increase blood flow to the skin and extremities, promoting heat loss to cool the body.
Similar Questions
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Which part of the kidney contains the glomeruli, the Bowman’s capsules and the proximal and distal convoluted tubules?
The distal and proximal convoluted tubules are named for their proximity to the glomerular capsule.Group of answer choicesTrueFalse
Which of the following processes take place at the glomerulus of a nephron?Secretion of ureaReabsorption of waterReabsorption of glucoseFiltration of blood
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