Short Answer TypeCommon name of some animals are given in Column A, write their scientific name in Column B.
Column A Column B
a. Tiger ________________
b. Peacock ________________
c. Housefly ________________
Complete the following statement :
a. In Cockroach grinding of food particle is performed by ____________
b. Malpighian tubules help in removal of ___________________________
c. Hind gut of Cockroach is differentiated into ______________________
d. In Cockroach blood vessels open into spaces called ______________
Long Answer Type
Multiple Choice QuestionsWhat external changes are visible after the last moult of a cockroach nymph?
Mandibles become harder
Anal cerci develop
Both fore wings and hind wings develop
Both fore wings and hind wings develop
The function of the gap junction is to
performing cementing to keep neighbouring cells together
facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions, small molecules and some large molecules.
separate two cells from each other
separate two cells from each other
The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of
ammonia
potassium urate
urea
urea
B.
potassium urate
Insects including cockroach excrete nitrogenous waste in the form of soluble potassium urate which is liberated into the haemolymph and taken up by the cells lining the Malpighian tubules. The tubules facilitate the absorption of urate by stirring up the blood. In the cells of the tubule the potassium urate reacts with water and carbon dioxide(from respiration) to form potassium hydrogen carbonate and uric acid. The former is absorbed back into the blood, but the later is excreted.
Pheretima and its close relatives derive nourishment from
sugarcane roots
decaying fallen leaves and soil organic matter
soil insects
soil insects
Choose the correctly matched pair.
Tendon - Specialised connective tissue
Adipose tissue - Dense connective tissue
Tubular parts of nephrons - Cuboidal epithelium
Tubular parts of nephrons - Cuboidal epithelium
Compared to those of humans, the erythrocytes in frog are
without nucleus but with haemoglobin
nucleated and with haemoglobin
very much smaller and fewer
very much smaller and fewer
Select the correct statement from the ones given below with respect to Periplaneta americana
Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal connectives
Males bear a pair of short thread like anal styles
There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut
There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut
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