NEET BIOLOGY

Detailed explanation-1: -During differentiation, cells undergo few to major structural changes both in their cell walls and protoplasm e.g., to form a tracheary element the cells would lose their protoplasm, they also develop strong, elastic, lignocellulosic secondary cell walls, to carry water to long distances even under extreme tension.

Detailed explanation-2: -During cell differentiation, unspecialized cells mature into and evolve to perform a specific function. This also occurs due to differential gene expression, changes in their shape, cell wall, protoplasm, etc.

Detailed explanation-3: -Differentiation dramatically changes a cell’s size, shape, membrane potential, metabolic activity, and responsiveness to signals. These changes are largely due to highly controlled modifications in gene expression and are the study of epigenetics.

Detailed explanation-4: -During this process, cells undergo structural changes in both cell walls and protoplasm. Examples-Differentiation of cells into tracheary elements leads to loss of protoplasm and also the development of secondary lignocellulosic cell wall.

Detailed explanation-5: -Answer: Option (C) The environmental factors adversely affect the growth of the cells correspondingly statements about cell differentiation are true Is Option C Cells differentiate because the DNA in each cell of an organism is different.