Parts of a Flower and Pollination Quiz
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Questions and Answers

Which part of the flower serves to attract pollinators to the plant?

  • Ovary
  • Stamen
  • Petal (correct)
  • Sepal

What is the male part of the flower consisting of the anther and filament?

  • Receptacle
  • Stamen (correct)
  • Stigma
  • Sepal

What is the top portion of the style and the receptive surface for pollen grains?

  • Corolla
  • Pedicel
  • Stigma (correct)
  • Ovule

What is the enlarged lower portion of the style enclosing the ovule(s)?

<p>Ovary (D)</p> Signup and view all the answers

What is the function of the stigma in a flower?

<p>To receive pollen grains (B)</p> Signup and view all the answers

Which part of the flower bears the anther and connects it to the flower?

<p>Filament (D)</p> Signup and view all the answers

What is the primary purpose of the ovary in a flower?

<p>To enclose the ovules and become a fruit after maturation (D)</p> Signup and view all the answers

What is the role of the corolla in a flower?

<p>To protect other floral parts in the bud stage (D)</p> Signup and view all the answers

What is the difference between staminate and carpellate flowers?

<p>Carpellate flowers bear only female sex parts, while staminate flowers bear only male sex parts (B)</p> Signup and view all the answers

What are some characteristic features of insect-pollinated flowers?

<p>Exerted anthers and deposition of pollen on visiting insects (B)</p> Signup and view all the answers

What is the function of the micropyle in a dicot seed?

<p>To allow water to enter for germination (C)</p> Signup and view all the answers

What is the term used to describe a seed that has no separate existence of the endosperm?

<p>Exalbuminous seed (B)</p> Signup and view all the answers

What is the role of the testa in a dicot seed?

<p>Provides protection to the seed (A)</p> Signup and view all the answers

In a dicot seed, what is the name of the long scar along the notch which marks the point of attachment to the seed stalk?

<p>Hilum (A)</p> Signup and view all the answers

What is the name for the two fleshy cotyledons in a bean seed that enclose the nutritive endosperm during embryonic development?

<p>Cotyledons (A)</p> Signup and view all the answers

What is the primary function of the hypocotyl in a seed?

<p>It becomes the stem of the plant (C)</p> Signup and view all the answers

What is the main role of the endosperm in a maize seed?

<p>It contains protein granules and starch-laden cells (C)</p> Signup and view all the answers

What is the function of aleurone layer in the maize grain?

<p>It secretes digestive enzymes during seed germination (C)</p> Signup and view all the answers

Which part of the embryo is partially covered and protected by colerorhiza and coleoptile?

<p>Plumule (C)</p> Signup and view all the answers

What is the primary purpose of the scutellum in a maize grain?

<p>Secrete digestive enzymes during seed germination (A)</p> Signup and view all the answers

Flashcards

Stamen

The male reproductive part of a flower, consisting of the anther and filament.

Stigma

The top portion of the style that receives pollen grains.

Ovary

The enlarged lower portion of the style that encloses the ovule(s) and develops into fruit.

Filament

The part of the stamen that bears the anther.

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Corolla

The brightly colored petals of a flower that attract pollinators.

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Staminate flower

Flowers with only male reproductive parts (stamens).

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Carpellate flower

Flowers with only female reproductive parts (pistil).

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Micropyle

The small opening in a dicot seed where the pollen tube enters during fertilization.

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Exalbuminous seeds

Seeds that lack a separate endosperm and rely on cotyledons for nourishment.

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Testa

The tough outer covering of a seed that protects it and controls water uptake.

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Hilum

The long scar on a dicot seed marking the point of attachment to the seed stalk.

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Cotyledons

The two fleshy leaves that enclose the nutritive endosperm in a bean seed.

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Hypocotyl

The region of the embryo that connects the cotyledons to the root and shoot.

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Endosperm

The nutrient-rich tissue in a maize seed that provides nourishment to the developing embryo.

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Aleurone layer

A layer in a maize seed that secretes enzymes to break down the endosperm during germination.

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Coleorhiza and coleoptile

Protective sheaths covering the embryo in a seed.

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Scutellum

A specialized region of the maize embryo responsible for absorbing nutrients from the endosperm during germination.

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Study Notes

Flower Structure and Function

  • The petals of a flower serve to attract pollinators to the plant.
  • The male part of the flower, consisting of the anther and filament, is called the stamen.
  • The stigma is the top portion of the style and is the receptive surface for pollen grains.
  • The ovary is the enlarged lower portion of the style, enclosing the ovule(s).
  • The stigma's function is to receive pollen grains.

Floral Organs

  • The filament is the part of the flower that bears the anther and connects it to the flower.
  • The ovary's primary purpose is to produce seeds and fruit.

Floral Function

  • The corolla's role is to attract pollinators and protect the reproductive organs.

Flower Types

  • Staminate flowers are male flowers, while carpellate flowers are female flowers.
  • Insect-pollinated flowers often have characteristic features such as brightly colored petals, strong scents, and nectar-rich rewards.

Seed Structure and Function

  • The micropyle is the small opening in a dicot seed where the pollen tube enters during fertilization.
  • Exalbuminous seeds are those that have no separate existence of the endosperm.
  • The testa is the seed coat that protects the seed and regulates water uptake.

Seed Development

  • The hilum is the long scar along the notch that marks the point of attachment to the seed stalk in a dicot seed.
  • The cotyledons are the two fleshy leaves that enclose the nutritive endosperm during embryonic development in a bean seed.

Embryo Development

  • The hypocotyl is the region of the embryo that connects the cotyledons to the root and shoot.
  • The endosperm's main role is to provide nutrients to the developing embryo in a maize seed.
  • The aleurone layer is responsible for secreting enzymes to break down the endosperm during seed germination.

Embryonic Protection

  • The colerorhiza and coleoptile partially cover and protect the embryo.

Maize Grain Structure

  • The scutellum is a specialized region of the embryo that absorbs nutrients from the endosperm during seed germination.

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Description

Test your knowledge of the parts of a flower and their functions with this quiz. Learn about the pedicel, receptacle, sepal, petal, and more as you explore the fascinating world of plant pollination.

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