Advertisements
Advertisements
Question
Give biological reasons for the following statements: There is frequent urination in winter than in summer
Advertisements
Solution
In winter, our body does not need to store much water because the outside temperatures are low. Also, very less amount of water is lost through perspiration during winter. Hence, urination is more frequent in winter than in summer.
APPEARS IN
RELATED QUESTIONS
The given diagram represents a nephron and its blood supply. Study the diagram and answer the following questions:

(i) Label parts 1, 2, 3 and 4.
(ii) State the reason for the high hydrostatic pressure in the glomerulus.
(iii) Name the blood vessel which contains the least amount of urea in this diagram.
(iv) Name the two main stages of urine formation.
(v) Name the part of the nephron which lies in the renal medulla.
Define excretion.
Name the two parts of a plant through which its gaseous waste products are released into the air.
Why do some people need to use a dialysis machine? What does the machine do?
Write True (T) or False (F) for the following statement. Rewrite the false statement in the correct form.
Urine is devoid of blood cells.
Why is excretion necessary in living beings?
Write down the functional activity of the following parts,
Henle's loop ………………
Define the following term :
Renal pelvis
Study the diagram given alongside and then answer the question that follow:
Name the region in the kidney where the above structure is present?
Given below is a simple diagram of the human kidney cut open longitudinally. Answer the following questions:
c
(v) Write two differences in the composition of the blood flowing through blood vessels A and B.
