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WorksheetsExcretion
Total questions: 20
Worksheet time: 10mins
The structural and functional unit of Kidney is
NEURON
NEPHRON
NUCLEUS
NONE OF THESE
Nitrogenous waste products are eliminated mainly as -
urea in tadpole and ammonia in adult frog
ammonia in tadpole and urea in adult frog
urea in both tadpole and adult frog
urea in tadpole and uric acid in adult frog
a
b
c
d
a
b
c
d
a
b
c
d
Which point is incorrect regarding Flame cells ?
excretory organ in flatworms
Helps in osmoregulation
other name is Nephridia
tubular structure
a
b
c
d
S 1 : Many bony fishes, aquatic amphibians and aquatic insects are ammonotelic in nature.
S 2: Ureotelism and uricotelism help in conservation of water and needed for terrestrial adaptation.
S 1 is correct but
S 2 is incorrect
S 1 is incorrect but S 2 is correct
Both statements are correct
Both statements are incorrect
1 . Towards the centre of the inner convex surface of the kidney is a notch called hilum through which ureter, blood vessels and nerves enter.
2. Each kidney of an adult human measures 10-12 cm in length with an average weight of 120- 170 g
3. Nephron is simple tubular structure .
4.Blood from the glomerulus is carried away by an afferent arteriole.
3 statement are correct
2 statement are incorrect
3 statement are incorrect
2 statement are correct
Which one is not a function of skin.
Helps regulate body temperature.
Eliminate wastes.
Gather information about the environment.
Produce Vitamin C.
What causes goose bumps " a state of skin caused by cold , fear or excitement"?
hair follicles
sebaceous glands
errector muscle
hot weather
which excretory organ eliminates water and some chemical wastes in perspiration?
Lungs
Liver
Kidneys
Skin
A structure out of which strands of hair grow
Follicles
Pores
Head
Eyelashes
Excretion is the removal of (a) waste from the body.
Which artery supplies the kidney with oxygenated blood?
Hepatic
Coronary
Renal
Carotid
Which artery supplies the kidney with oxygenated blood?
Hepatic
Coronary
Renal
Carotid
Define homeostasis.
Homeostasis is the change that takes place in the body.
Homeostasis is chemical reactions that take place in the body.
Homeostasis is maintaining a constant internal environment.
Letter F represents which part of the nephron?
Bowmans capsule
Ascending loop of Henle
Distal convoluted tubule
Descending loop of Henle
