Name the foetal membrane that provides a fluid medium to the developing embryo. Mention its two functions.

What is a mesosome in a prokaryotic cell ? Mention its function?

During the secondary thickening of a dicot stem, from the outer cotical region, a meristematic tissue is developed. Name this tissue and write the function of it.

Read the following statements and find out the incorrect statement. a. Embryo development precedes endosperm development. b. Though the seeds differs greatly the early stages of embryo development (embrogeny) are similar in both monocotyledons and dicotyledons. c. A typical dicotyledonous embryo consists of an embryonal axis and two cotyledons. d. Endosperm may either be completely consumed by the developing embryo (e.g., castor and coconut) before seed maturation or it may persist in the mature seed (e.g., wheat, rice, maize, pea, groundnut and beans). e. The coconut water from tender coconut is cellular endosperm and the surrounding while kernel is the nuclear endosperm.

Features of a particular tissue visible through a mi croscopic observation is presented here: Cells are closely arranged. Intercellular matrix absent. Cells are supported by basement membrane. Mention their functions.