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Excretion

5. Which part of the nephrone in the (a) Ammonia
glomerulus is invaginated? (b) Uric acid
(a) Capsule (c) Urea

(b) Kidney (d) Glucose
FOR ONLINE READING ONLY
(c) Bowman’s capsule
(d) Malpighian body 8. Match the items in Column A with
its corresponding descriptions in
6. In the human body kidneys act Column B by writing the letter of
as__________. the correct description of Column
(a) water reservoirs B beside the corresponding item
(b) blood filters number of Column A. Some of the

(c) blood stores descriptions in Column B may be
(d) blood pumps used more than once.

7. Normal urine contains the following
dissolved substance:

Column A Column B
A. Microscopic blood vessels that allow exchange
(i) Nephrone between blood and tissues.
B. The process of urine passing from the bladder to
the outside
(ii) Ureter C. The outer region of the kidney where initial filtration
occurs.
(iii) Glomerulus D. Tube that carries urine from the bladder to the
external environment
(iv) Filtration E. The unit responsible for filtering blood and forming
urine

(v) Urinary bladder F. A capillary network where blood plasma is initially
filtered
(vi) Urethra G. A muscular organ that stores urine temporarily
H. The transfer of valuable substances from filtrate
back into the blood
(vii) Reabsorption I. Long tube that transports urine from kidneys to
the bladder
(viii) Kidney medulla J. The innermost region of the kidney contains renal
pyramids
(ix) Urination K. A hormone that regulates water balance by acting
on the kidney tubules
L. The process where useful substances are selectively
(x) Kidney cortex removed from the blood
M. Part of the nephrone is responsible for water and
salt reabsorption

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