Mention the most significant function of each of the following : (i)

1.	Mention the most significant function of each of the following : (i) Tapetum cells (ii) Serotonin (iii) Lenticels (iv) Cerebrospinal fluid (v) Islets of Langerhans (vi) Bundle sheath
Answer» (i) Tapetum cells: Rich in food materials, surrounds the micro spore mother cell and supplies food to the developing spores. (ii) Serotonin : Acts as a neurotransmitter. (iii) Lenticels : Allows exchange of gases between the atmosphere and the interior of the cells. (iv) Cerebrospinal fluid : Forms the protective cushion over the brain and spinal cord against shock and mechanical injury. (v) Islets of Langerhans: Secrete two hormones – (a) insulin and (b) glucagon (vi) Bundle sheath : Surrounds the vascular bundles in mono cot leaf, provides mechanical support.

Mention the most significant function of each of the following : (i) Tapetum cells (ii) Serotonin (iii) Lenticels (iv) Cerebrospinal fluid (v) Islets of Langerhans (vi) Bundle sheath

Answer»

(i) Tapetum cells: Rich in food materials, surrounds the micro spore mother cell and supplies food to the developing spores.

(ii) Serotonin : Acts as a neurotransmitter.

(iii) Lenticels : Allows exchange of gases between the atmosphere and the interior of the cells.

(iv) Cerebrospinal fluid : Forms the protective cushion over the brain and spinal cord against shock and mechanical injury.

(v) Islets of Langerhans: Secrete two hormones –

(a) insulin and

(b) glucagon

(vi) Bundle sheath : Surrounds the vascular bundles in mono cot leaf, provides mechanical support.