Intercellular communication in multicellular organism occurs through :
digestive system only
respiratory system only
nervous system only
both nervous and endocrine system
D.
both nervous and endocrine system
Animals have two systems of co-ordination, namely, nervous system and endocrine system.
Neurons are the basic structural and functional units of the nervous system. They spread thoughout the organism forming a complex communication network.
Endocrine system releases hormones for intercellular communication.
Which of the following does not match ?
Pancreas - Glisson's capsule
Antigen - Antibody
Thyroid - Goitre
Enzyme - Substrate
The presence of arginase confirms that :
urea cycle is operating
urea cycle may be operating
arginine is being converted into ornithine
arginine is being converted into citrulline
Hypersecretion of growth hormone in the period of growth lead to :
acromegaly
cushing syndrome
midgets
cretinism
The peculiar pungent smell of cockroach is produced by the secretions of :
pheromones
flame cells
abdominal glands
cervical glands
In a vertebrate which germ layer forms the skeleton muscles ?
Ectoderm
Endoderm
Mesoderm
Both 'a' and 'c'
Which of the following does not play a role in blood coagulation ?
Vitamin K
Vitamin D
Calcium ions
Fibrinogen
The amount of bile released in proportion to the amount of:
fat in meal
protein in meal
carbohydrate in meal
all of the above
Tongue is under control of :
trigeminal nerve
facial nerve
automatic nervous system
glossopharyngeal nerve
