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 ______. - Biology

Advertisements
Advertisements
MCQ
Fill in the Blanks

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 ______.

Options

  • Wind

  • Animals

  • Water

  • Insects

Advertisements

Solution

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 wind.

Concept: Pollination
  Is there an error in this question or solution?
Chapter 2: Sexual Reproduction in Flowering Plants - MULTIPLE CHOICE QUESTIONS [Page 11]

APPEARS IN

NCERT Exemplar Biology Class 12
Chapter 2 Sexual Reproduction in Flowering Plants
MULTIPLE CHOICE QUESTIONS | Q 12. | Page 11

Video TutorialsVIEW ALL [2]

RELATED QUESTIONS

As a senior biology student you have been asked to demonstrate to the students of secondary level in your school, the procedure (s) that shall ensure cross – pollination in a hermaphrodite flower. List the different steps that you would suggest and provide reasons for each of the item.


Make a list of any three outbreeding devices that flowering plants have developed and explain how they help to encourage cross-pollination.


Why angiosperm anthers are called dithecous?


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.


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?


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

Dahlia_______ .


Fill in the blanks with suitable words.

Different timings for the maturation of gynoecium and androecium is called ________.


Fill in the blanks with suitable words.

_______ is a water-pollinated flower.


Name of the part of the ovary which gives rise to:

Fruit ______


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


Give one word/term for the following:

Pollination of flowers by birds.


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


In bisexual flowers, maturation of gynoecium before androecium is known as ______.


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.


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


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


The question has four options. Choose the correct answer:
Pollination by insect is known as


Very short answer type question:

What is hydrophily?


Mention various adaptations for wind pollination.


Give an account of any two biotic agents for pollination along with their adaptations.


Give an account of various abiotic agencies used in pollination along with their adaptations for pollination.


For which of the following attractants and rewards are required?


Autogamy can occur in a chasmogamous flower if ______.


Wind pollination is common in ______.


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


A dioecious flowering plant prevents both ______.


Anemophily type of pollination is found in ______.


Which of the following plant contain unisexual flower?


Insect pollinated flowers are ______.


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 ______


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.


Describe any three adaptations in hydrophilous flowers.


Complete the following table:

Sr. Type of pollination Agent Kind of flower Examples
(i) ______ Wind ______ Maize
(ii) Chiropterophily ______ Dull colour, with strong fragrance, abundant nectar Adansonia
(iii) Entamophily Insects ______ Rose/Jasmine
(iv) Ornithophily ______ Brightly coloured, large and showy. They secrete profuse, dilute n ectar ______

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


Share
Notifications



      Forgot password?
Use app×