What are the symptoms of retinal deficiency?
Dry skin
Rough skin
Night blindness
Sensitiveness to light and ulcers
Correct Answer :
C. Night blindness
Related Questions
Dinosaur is a/an
Fish
Amphibian
Reptile
Bird
Total number of amino acids in plants is
10
20
30
Plenty
The blood without corpuscles is called
bile
lymph
plasma
blood
Nephrons are found inside
Liver
Lung
Brain
Kidneys
The plant hormone which promotes ripening of fruits is
auxin
ethylene
gibberellin
cytokinin
The disease Goitre is caused in persons who do not have in their diet sufficient
calcium
sodium
iodine
iron
The plant cells are surrounded rigidly by
plasmalemma
cell membrane
cell wall
plasma membrane
Tse-Tse fly is the vector for
malarial parasite
try peorosoma
piroplasm
microfilaria
The organ that produces antibodies in our body is
pancreas
salivary gland
liver
gonads
The mode of nutrition in which particulate food is devoured is
holozoic
holophytic
saprophytic
parasitic
The cell theory of Schleiden and Schwann states that
cells reproduce by mitosis or meiosis
all cells have nuclei
cells are basic units of plants and animals
cells arise only from pre-existing cells
The smallest size of a cell which can be seen directly by the eye is
One micron
10 micron
100 micron
1000 micron
Nephantis is popularly called
coconut caterpillar
brown plant hopper
tobacco caterpillar
pulse beetle
The specific gravity of blood is
lower than water
higher than water
same as water
many times that of water
The hormone secreted when one is frightened or excited
pituitrin
thyroxine
adrenaline
parathormone
Vitamin D deficiency leads to
sterility
pellagra
rickets
capillary fragility
The function of ribosomes is
Secretion
Excretion
Power house of the cell
Protein synthesis
Pneumonia is ,a bacterial disease caused by the type of bacteria called
Bacilli
Cocci
Sprilli
Vibrio
Fusarium causes the wilting of the cotton plants by
clogging the vessels
producing toxic substance
causing necrosis of roots
killing the leaves
The condition in which there is abnormal decrease of white blood corpuscles is known as
leukaemia
leucoderma
leukopenia
anaemia
The theory of use and disuse was used to explain evolution by
Lamarck
Darwin
De Vries
Wallace
Biological control is to check growth of
plants
animals
weeds
one pest by another
When a movement of a plant organ is stimulated by contact with an object, it is termed
heliotropism
geotropism
haptotropism
gardening
The association between leguminous plants and bacteria is
parasitic
saprophytic
symbiotic
None of the above
The hormone that contains iodine is
Prolactin
Vasopressin
Thyroxine
Adrenalin
What are the symptoms of 'Pellagra'?
Colour blindness
Rickets
Patches of skin
Soft bones
Prions are composed largely of
DNA
proteins
RNA
None of these
Insulin is produced in the human body by the
Heart
Kidney
Liver
Pancreas
Tetrodotoxin is a potent poison that
erodes blood vessels
blocks conduction of nerve impulses causing respiratory paralysis
produces damage to the kidneys
produces intestinal bleeding
Bacteria utilising radiant energy to prepare food are
chemosynthetic bacteria
heterotrophic bacteria
photosynthetic bacteria
free living bacteria