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Flower Pollen Germination Experiment

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Questions and Answers

What is the primary purpose of the Germination Solution (GS) used in this procedure?

To provide a nutrient-rich medium for pollen germination (correct)
To preserve the pollen grains for long-term storage
To dissolve the pollen grains for better observation
To stain the pollen grains for better visibility

What is the first observable sign of pollen germination?

The division of the generative cell nucleus
The emergence of the male gametes (sperm nuclei)
The elongation of the vegetative/tube cell (correct)
The formation of the pollen tube

What is the role of the male gametes (sperm nuclei) in the pollen tube?

They help in the dissolution of the pollen grain
They are the reproductive cells that fertilize the egg cell (correct)
They provide nutrients for pollen germination
They facilitate the growth of the pollen tube

Which type of flower arrangement is described as having separate male and female flowers on the same individual plant?

Monoecious (D) Signup and view all the answers

What is the purpose of using a cavity slide in this procedure?

To contain the Germination Solution and prevent spilling (A) Signup and view all the answers

What is the importance of using freshly plucked flowers in this procedure?

To ensure that the pollen grains are viable and capable of germination (A) Signup and view all the answers

What is the main function of the tapetum cells during pollen grain development?

To transfer nutrients to the developing pollen grains (B) Signup and view all the answers

When does the division of the generative cell to form two sperm cells occur?

Before or after pollination (C) Signup and view all the answers

What is the main function of the micropyle in the ovule structure?

To allow the pollen tube to enter the ovule (D) Signup and view all the answers

Which of the following is not a structure found within the embryo sac?

Pollen tube nucleus (B) Signup and view all the answers

What is the primary function of the exine layer of the pollen wall?

To protect the pollen grain from desiccation (A) Signup and view all the answers

What is the relationship between the nucellus and the embryo sac during ovule development?

The nucellus nourishes the developing embryo sac (A) Signup and view all the answers