Which of the following plant contain unisexual flower? - Biology


Which of the following plant contain unisexual flower?


  • Papaya

  • Rose

  • Lotus

  • Hibiscus




Concept: Pollination
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Geitonogamous flowering plants are genetically autogamous but functionally cross-pollinated. Justify.

What is self-incompatibility?

What is bagging technique? How is it useful in a plant breeding programme?

Enlist advantages and disadvantages of cross pollination

Add a note on pollination mechanism in Salvia.

Give the floral adaptations for anemophily.

Describe the structure of its microsporangium.

Write two ways in which pollination may occur in plants.

Name two characteristics of flowers in which pollination occur by wind.

What is meant by pollination?

Fill in the blank:

Male sex cells in plants are called _________.

Fill in the blanks:

The two kinds of pollination are __________ and __________.

Find the odd-one out, giving reason:

Ovary, style, pollen grain, stigma

Differentiate between the following:

Self pollination and cross pollination.

Define the term Pollinating.

Can a unisexual flower be self pollinated?

Which one of the following is one of the characteristics of self-pollinated flowers?

Exine and intine are the parts of

State the name of the chief pollinating agent against the corresponding plant by choosing from those given in brackets. 

Dahlia_______ .

When maturation time of reproductive parts in a flower is different.

Give one word/term for the following:

Pollination of flowers by insects.

Mention any two contrivances in flowers which favour cross-pollination.

Describe the advantages and disadvantages of cross-pollination to the plant.

Choose the correct option of the following question:

Type of Interaction where an individual sacrifices its own welfare (life) for the benefit of another animal of its own species is:

State four features of flowers pollinated by insects.

Give four adaptations shown by flowers pollinated by wind.

Answer the following question.
Can a plant flowering in Mumbai be pollinated by pollen grains of the same species growing in New Delhi? Provide explanations to your answer.

Put a tick mark (✓) against the correct alternative in the following statements

Pollen is produced in the

Put a tick mark (✓) against the correct alternative in the following statements

Vegetative propagation is not observed in:

Name the two types of pollination.

What is a flower? Draw a typical flower and label its different parts.

Describe pollination. How many types of pollinations are found?

Describe the Advantages and Disadvantages of self-pollination to the Plant.

What are the adaptations which are required in self-pollinated plants?

At which stage pollen grains are shed from the anther in Angiosperms?

For which of the following attractants and rewards are required?

Wind pollination is common in ______.

A particular species of plant produces light, non-sticky pollen in large numbers and its stigmas are long and feathery. These modifications facilitate pollination by ______.

Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by ______.

A dioecious flowering plant prevents both ______.

Male and female flowers are present on different plants (dioecious) to ensure xenogamy, in ______.

During Hybridization process anther of the bisexual flower is removed before it dehisces is called ______.

Which type of flower has ovary superior?

Pollination refers to the

Which type of pollination does Figure 12.1 indicate?

Which one of the following may require pollinators, but is genetically similar to autogamy?

Advantage of cleistogamy is:

In which one of the following pollination is autogamous?

Correct definition of pollination is ______

The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which, during pollination, brings genetically different types of pollen grains to stigma, is ______

From among the situations given below, choose the one that prevents both autogamy and geitonogamy.

What is self-incompatibility?

What is ornithophily?

Consider the following statements depicting adaptation of flowers to carryout successful pollination.

  1. Stigma is long, sticky and unwettable.
  2. Sepals, petals or perianth (if present) have waxy coating.
  3. Stamens with long filament and versatile anthers.
  4. Tubular corolla is seen.
  5. Flowers are noctumal.

Which of the above statements clearly depict hydrophily?

Match the Column I with Column II.

Column I Column II
A. Pea (i) Xenogamy
B. Jawar (ii) Epihydrophily
C. Maize (iii) Anemophily
D. Vallis (iv) Bisexual
E. Cannabis (v) Geitonogamy

Pollination in water lilies is carried out by ______.

Which of the following floral adapation are adapted by hydrophilous flowers?

Mention any one example of the anemophilous flower.

What is hypohydrophily?

Name the following:

Aquatic plants which are anemophilous.

Briefly discuss any two methods by which plants avoid self-pollination.


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