Colour in skin of frog is due to
melanin
melanophores
porphyrin
chromatophores
Correct Answer :
D. chromatophores
Related Questions
The integument of rabbit differs from that of frog in
possessing stratum comeum for protection against wear and tear
not possessing subcutaneous fat
possessing mucous glands for producing mucus.
possessing sebaceous glands which produce sebum for keeping skin greasy and water-proof.
Skin of frog is characterized by the ab- I sence of
scales
epidermis I
mucous glands
chromatophores
Perspiration is a process, essentially meant for
the removal of excess water
excreting excess salts
excreting nitrogenous wastes
cooling
The mucous and poisonous glands are found is the skin of frog. These are specially abundant
on the dorsal side
on the ventral side
on the snout
in the lateral dermal plicae
The layer of cells in the skin which is periodically cast off is
stratum lucidum
stratum corneum
stratum granulosum
malpighian layer
Structures present in the skin of frog and absent in skin of rabbit are
mucous glands
sebaceous glands
hairs
nails
Colour in skin of frog is due to
melanin
melanophores
porphyrin
chromatophores
The part of the hair, in which the hair I shaft is lodged, is called as
root
follicle
papilla
bulb
Large sweat glands are characteristic of >
glans
scrotum
pinna
areola mammary
Sebaceous glands are present in
skin in the epidermis
skin in the dermis
stomach in its epithelium
intestine in the epithelium
In the mammalian skin, the adipose tissue is found
in the epidermis
in the dermis
in the muscles
below the derm
Lacrymal glands are responsible for the secretion of
mucus
tears
hormones
enzymes
The skin in man is thickest at
palm
sole
head
thumb
Leather from the mammalian skin is derived from
epidermis
dermis
subdermal tissue
whole of the skin
Wrinkling of skin in old age is due to
gradual loss of elasticity in the subcutaneous layer
gradual loss of adipose tissue below dermis
poor supply of blood to skin
excess loss of water from skin
The skin functions as a storage organ because the deeper layers of dermis store
water and fat
proteins
carbohydrates
all of these
Hair originates from
epidermis
dermis
subcutaneous layer
skin glands
The sebaceous glands of skin are as- I sociated with the
hairs
stratum granulosum
lymph vessels
nerve fibres
Glands of Zeis are associated with the eye lashes. These are modified
sebaceous glands
sweat glands
mucous glands
sudorific gland
Sebaceous glands are found in
epidermis of skin of mammals
dermis of skin of mammals
epithelium of stomach of frog
epithelium of intestine of frog
Mammals lack mucous glands in the skin because
the skin is soft
the skin is not respiratory
the skin has sebaceous glands
the skin has hairs
Ceruminous or wase glands are seen in
eyes of mammals
olfactory passage of mammals
external auditory meatus in mammals
none of these
The cells of the stratum lucidum of the skin become hard and the horny layer of cells thus formed become
stratum granulosum
stratum comeum
dermis
malpighian layer
The modification of the skin at the terminal part of the dorsal surface of phalanges result in formation of
wrinkles
hair
feathers
nails
In frog, the mucous and poisonous glands are found in
stratum comeum
stratum spongiosum
stratum compactum
any of these
The hair of a mammal is a structure which is
epidermal
mesodermal
dermal
endodermal
The function of sebaceous glands in mammals is to
plug the skin pores
nourish the hair follicles
cool the skin by vaporisation
make the skin and hair water proof
If a cat is deprived of vibrissae, stiff long hair on the snout
it can run fast
it can not run at all
it can run freely
nothing will happen
Mammary glands are modified......in mammals
sweat glands
mucous glands
sebaceous glands
meibomian glands
Sweat glands in mammals are primarily concerned with
Regulation of water content
Removal of excess salts
Killing of bacteria
Regulation of body heat