Long Answer Questions Five mark Each
QUESTIONS FROM CBSE BOARD EXAMINATIONS :
(a) Draw a labelled diagram of the sectional view of a typical anatropous ovule.
(b) Mention the fate of all the components of the embryo sac after fertilization.

Long Answer Questions Five mark Each QUESTIONS FROM CBSE BOARD EXAMINATIONS : Draw a neat, labelled diagram of a mature angiosperm, embryo sac. Mention the role of synergids.

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : Explain the formation of embryo sac in plants.

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : Describe different types of cross pollination in plants.

Long Answer Questions Five mark Each QUESTIONS FROM CBSE BOARD EXAMINATIONS : (a) Draw a diagrammatic sectional view of a mature anatropous ovule and label the following parts in it: (i) that develops into seed coat. (ii) that develops into an embryo after fertilization. (iii) that develops into an endosperm in an albuminous seed. (iv) through which the pollen tube gains entry into the embryo sac. (v) that attaches the ovule to the placenta (b) Describe the characteristic features of wind pollinated flowers.

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : With the help of labelled diagrams, depict the stages of microspore maturing into a pollen grain.

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : (a) Draw a neat and well labelled diagram of pollen sac. (b) Draw a neat and well labelled diagram of embryo sac.

Long Answer Questions Five mark Each QUESTIONS FROM CBSE BOARD EXAMINATIONS : (a) Draw a labelled diagram of the internal structure of a mature embryo sac of an angiosperm. (b) Trace the events that occur in a functional megaspore leading to the development of a matured embryo sac in an angiosperm.

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : Describe pollen germination. Illustrate your answer with suitable diagrams.

Short Answer Questions Three mark Each QUESTION FROM STATE BOARD EXAMINATIONS Differentiate between autogamy and geitonogany.

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : Differentiate between self and cross pollination. Mention two contrivances of each.