Multiple Choice QuestionsThe kind of epithelium which forms the inner walls of blood vessels is
cuboidal epithelium
columnar epithelium
ciliated columnar epithelium
ciliated columnar epithelium
If for some reason our goblet cells are non -functional, this will adversely effect
Production of somatostatin
secretion of sebum from the sebaceous glands
maturation of sperms
maturation of sperms
In which one of the following organism, its excretory organs are correctly stated?
Humans- Kidneys, sebaceous glands and tear glands
Earthworm -Pharyngeal, integumentary and septal nephridia
Cockroach - Malpighian tubules and enteric caeca
Cockroach - Malpighian tubules and enteric caeca
The epithelial tissue present on the inner surface of bronchioles and fallopian tubes is
cuboidal
glandular
ciliated
ciliated
Uric acid is the chief nitrogenous component of the excretory products of
man
earthworm
cockroach
cockroach
If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is
excretory fluid
coelomic fluid
haemolymph
haemolymph
The cell junctions called tight, adhering and gap junctions are found in
muscular tissue
connective tissue
epithelial tissue
epithelial tissue
Which one of the following is the true description of an animal concerned?
Earthworm - The alimentary canal consists of a sequence of pharynx, oesophagus, stomach, gizzard and intestine.
Frog - Body divisible into three regions- head, neck and trunk
Rat - Left kidney is slightly higher in position that the right one
Rat - Left kidney is slightly higher in position that the right one
Which one of the following pair of items correctly belongs to the category of organs mentioned against it?
Thorn of Bougainvillea and tendrils of Cucurbita - Analogous organs
Nictitating membrane and blind spot in human eye - Vestigial organs
Nephridia of earthworm and Malpighian tubules of cockroach - Excretory organs
Nephridia of earthworm and Malpighian tubules of cockroach - Excretory organs
C.
Nephridia of earthworm and Malpighian tubules of cockroach - Excretory organs
In annelids like Nereis, earthworm, leech etc the tubular coiled structures called nephridia are excretory organs. In phylum - Arthropoda, insects, centipedes, millipedes and arachnids possess Malpighian tubules as their principal excretory organ.
Analogous organs have the almost similar appearance and perform the same function but develop in totally different groups and are totally different in their basic structure and developmental origin, eg, wings of butterfly, birds, bats.
The homologous organs have a common origin, perform varied functions and have a different appearance, eg, thorns of Bougainvillea and tendrils of Cucurbita.
Vestigial organs are useless remnants, which might have been large and functional in the ancestors, eg nictitating membrane, vermiform appendix, etc.
In which one of the following preparations are you likely to come across cell junctions most frequently?
Ciliated epithelium.
Thrombocytes
Tendon
Tendon
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