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Plant Embryology: Ovule Development

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Questions and Answers

What is the total number of haploid nuclei produced in the ovule after three successive mitotic divisions?

Six
Twelve
Eight (correct)
Four

What is the function of the synergids in the female gametophyte?

To guide the pollen tube toward the egg (correct)
To differentiate into the integuments
To form the seed coat
To nourish the embryo

What is the name given to the structure formed by the fusion of the two central cell nuclei?

Binucleate cell
Zygote
Diploid nucleus (correct)
Haploid nucleus

What is the role of the tapetal cells in the anther?

To nourish the microspores (B) Signup and view all the answers

What is the name given to the structure formed by the developing megagametophyte?

Embryo sac (C) Signup and view all the answers

What is the term 'angiosperm' derived from?

Two Greek words: 'angio' meaning 'vessel' and 'sperma' meaning 'seed' (D) Signup and view all the answers

What is the result of the nucleus of the fourth megaspore undergoing mitosis during gametophyte development?

The cell grows larger and its two haploid nuclei divide once more (A) Signup and view all the answers

What is the structure that develops from an ovule within a carpel and is part of an ovary that becomes a fruit?

Seed (C) Signup and view all the answers

During the development of gametophytes, how many times do the resulting four nuclei divide?

Twice (B) Signup and view all the answers

What is the number of haploid megaspores produced by the megasporocyte during meiosis?

Four (D) Signup and view all the answers

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