STD 11 - 17. Locomotion and movement — BIOLOGY STD 11 Science — Question

$(i)$ All the cells of the epithelium are held together with little intercellular materials.

$(ii)$ In almost all animal tissues specialized junction provide both structural and functional link between its individual cells.

$(iii)$ Tight junctions help to stop substances from leaking across a tissue.

$(iv)$ Adhering junctions provide cementing to keep neighbouring cells together.

$(v)$ Gap junctions provide cytoplasmic channels between cells for passage of ions, small molecules and sometimes big molecules.

$(i)$. Fungi - Regeneration

$(ii)$. Mossess - Fragmentation

$(iii)$. Planaria - Budding

$I.$ partial pressure of $O_{2}$

$II.$ partial pressure of $CO _{2}$

$III.$ hydrogen ion concentration

$IV.$ temperature

Choose the correct option