1. What is Cochlear microphonics ?
A. It is the electrical potential generated in the hair cells of organ of Corti in response to acoustic stimulation, called as cochlear microphonic.
2. What is axon reflex ?
A. Axon reflex is a response brought on by peripheral nerve stimulation. It is also known as Hunter reflex reaction as it causes vasodialation and loss of body heat from extremities.
3. What is enterohepatic circulation of bile salt ? Mention its significance .
A. Enterohepatic recirculation operates between ileum and liver in which bile salts are absorbed from ileum and re-enters into
liver for the reutilisation of bile salts.
4. Mention the location and function of juxtaglomerular apparatus .
A. JGA is found between the vascular pole of the renal corpuscle and the returning DCT of the same nephron. Function of JGA : It secretes renin & erythropoietin. Renin controls RAAS and is responsible for osmoregulation.
5. What is telomere ? State its function .
A. Telomere is a region of repetitive DNA at the end of a chromosome. It protects the end of the chromosome from deterioration.
6. Name two internal characteristic features of class Mammalia.
A. Internal chracteristic of class mammalia
– Presence of corpus callosum in brain.
– Presence of Sertoli cells in testis.
– Presence of diaphragm.
– Presence of spongy lungs.
– Presence of corpus luteum
7. State the advantages of composite fish culture.
A. Advantage of composite fish culture are
1. Different type of carps reared in the same pond.
2. It is economical and highly productive.
3. Carps reared in different strata of pond habitat utilise different types of food.
8. What is ribophorin ?
A. Ribophorins are ribosome receptor proteins that aid in the binding 60S subunit of ribosomes to the rough endoplasmic reticulum. Two kinds of Ribophorins are Ribophorin I and Ribophorin II.
A. It is the electrical potential generated in the hair cells of organ of Corti in response to acoustic stimulation, called as cochlear microphonic.
2. What is axon reflex ?
A. Axon reflex is a response brought on by peripheral nerve stimulation. It is also known as Hunter reflex reaction as it causes vasodialation and loss of body heat from extremities.
3. What is enterohepatic circulation of bile salt ? Mention its significance .
A. Enterohepatic recirculation operates between ileum and liver in which bile salts are absorbed from ileum and re-enters into
liver for the reutilisation of bile salts.
4. Mention the location and function of juxtaglomerular apparatus .
A. JGA is found between the vascular pole of the renal corpuscle and the returning DCT of the same nephron. Function of JGA : It secretes renin & erythropoietin. Renin controls RAAS and is responsible for osmoregulation.
5. What is telomere ? State its function .
A. Telomere is a region of repetitive DNA at the end of a chromosome. It protects the end of the chromosome from deterioration.
6. Name two internal characteristic features of class Mammalia.
A. Internal chracteristic of class mammalia
– Presence of corpus callosum in brain.
– Presence of Sertoli cells in testis.
– Presence of diaphragm.
– Presence of spongy lungs.
– Presence of corpus luteum
7. State the advantages of composite fish culture.
A. Advantage of composite fish culture are
1. Different type of carps reared in the same pond.
2. It is economical and highly productive.
3. Carps reared in different strata of pond habitat utilise different types of food.
8. What is ribophorin ?
A. Ribophorins are ribosome receptor proteins that aid in the binding 60S subunit of ribosomes to the rough endoplasmic reticulum. Two kinds of Ribophorins are Ribophorin I and Ribophorin II.
