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Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board chapter 1 - Reproduction in Lower and Higher Plants [Latest edition]

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Biology 12th Standard HSC for Maharashtra State Board - Shaalaa.com

Chapter 1: Reproduction in Lower and Higher Plants

Exercise
Exercise [Pages 16 - 17]

Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board Chapter 1 Reproduction in Lower and Higher Plants Exercise [Pages 16 - 17]

Exercise | Q 1.1 | Page 16

Multiple choice question.

Insect pollinated flowers usually posses ______

  • Sticky pollens with rough surface

  • Large quantities of pollens

  • Dry pollens with smooth surface

  • Light coloured pollens

Exercise | Q 1.2 | Page 16

Multiple choice question.

In ovule, meiosis occurs in ______

  • integument

  • nucellus

  • megaspore

  • megaspore mother cell

Exercise | Q 1.3 | Page 16

Multiple choice question.

The ploidy level is not the same in ______.

  • Integuments and nucellus

  • Root tip and shoot tip

  • Secondary nucleus and endosperm

  • Antipodals and synergids

Exercise | Q 1.4 | Page 16

Multiple choice question.

Which of the following types require pollinator but the result is genetically similar to autogamy?

  • Geitonogamy

  • Xenogamy

  • Apogamy

  • Cleistogamy

Exercise | Q 1.5 | Page 16

Multiple choice question.

If diploid chromosome number in a flowering plant is 12, then which one of the following will have 6 chromosomes?

  • Endosperm

  • Leaf cells

  • Cotyledons

  • Synergids

Exercise | Q 1.6 | Page 16

Multiple choice question.

In angiosperms, endosperm is formed by/ due to ______

  • free nuclear divisions of megaspore

  • polar nuclei

  • polar nuclei and male gamete

  • synergids and male gamete

Exercise | Q 1.7 | Page 16

Multiple choice question.

Point out the odd one.

  • Nucellus

  • Embryo sac

  • Micropyle

  • Pollen grain

Exercise | Q 2.01 | Page 16

Very short answer type question:

Name the part of gynoecium that determines the compatible nature of pollen grain.

Exercise | Q 2.02 | Page 16

Very short answer type question:

How many haploid cells are present in a mature embryo sac?

Exercise | Q 2.03 | Page 16

Very short answer type question:

Even though each pollen grain has 2 male gametes, why at least 20 pollen grains are required to fertilize 20 ovules in a particular carpel?

Exercise | Q 2.04 | Page 16

Very short answer type question:

Define megasporogenesis.

Exercise | Q 2.05 | Page 16

Very short answer type question:

What is hydrophily?

Exercise | Q 2.06 | Page 16

Very short answer type question:

Name the layer which supplies nourishment to the developing pollen grains.

Exercise | Q 2.07 | Page 16

Very short answer type question:

Define Parthenocarpy.

Exercise | Q 2.08 | Page 16

Very short answer type question:

Are pollination and fertilization necessary in apomixis?

Exercise | Q 2.09 | Page 16

Very short answer type question:

Name the parts of pistil which develop into fruits and seeds.

Exercise | Q 2.1 | Page 16

Very short answer type question:

What is the function of filiform apparatus?

Exercise | Q 3.1 | Page 16

Short Answer Question:

How polyembryony can be commercially exploited?

Exercise | Q 3.2 | Page 16

Short Answer Question:

Pollination and seeds formation is very crucial for fruit formation. Justify the statement.

Exercise | Q 3.3 | Page 16

Short Answer Question:

Incompatibility is a natural barrier in the fusion of gametes. How will you explain this statement?

Exercise | Q 3.4 | Page 16

Short Answer Question:

Describe three devices by which cross-pollination is encouraged in angiosperms by avoiding self- pollination.

Exercise | Q 4.1 | Page 16

Long Answer Question:

Describe the process of double fertilization.

Exercise | Q 4.2 | Page 16

Long Answer Question:

Explain the stages involved in the maturation of microspore into a male gametophyte.

Exercise | Q 4.3 | Page 17

Long Answer Question:

Explain the development of dicot embryo.

Exercise | Q 4.4 | Page 17

Long Answer Question:

Draw a labeled diagram of the L.S. of anatropous ovule and list the components of the embryo sac and mention their fate after fertilization.

Exercise | Q 5.01 | Page 17

Fill in the blank:

The _________ collect the pollen grains.

Exercise | Q 5.02 | Page 17

Fill in the blanks:

The male whorl, called the ________ produces ________.

Exercise | Q 5.03 | Page 17

Fill in the blank:

The pollen grains represent the ________.

Exercise | Q 5.04 | Page 17

Fill in the blank:

The ________contains the egg or ovum.

Exercise | Q 5.05 | Page 17

Fill in the blank:

________takes place when one male gamete and the egg fuse together. The fertilized egg grows into a seed from which the new plants can grow.

Exercise | Q 5.06 | Page 17

Fill in the blank:

The ______ is the base of the flower to which other floral parts are attached.

Exercise | Q 5.07 | Page 17

Fill in the blank:

________is the transfer of pollen grains from the anther of the flower to the stigma of the same or a different flower

Exercise | Q 5.08 | Page 17

Fill in the blank:

Once the pollen reaches the stigma, the pollen tube traverses down the ________to the ovary where fertilization occurs.

Exercise | Q 5.09 | Page 17

Fill in the blanks:

The ______ are coloured to attract the insects that carry the pollen. Some flowers also produce ______ or ______ that attracts insects.

Exercise | Q 5.1 | Page 17

Fill in the blank:

The whorl ________is green that protects the flower until it opens.

Exercise | Q 6 | Page 17

Label the parts of seed.

Exercise | Q 7 | Page 17

Match the column.

Column - I
(Structure before seed formation)
Column - II
(Structure after seed formation)
A. Funiculus I. Hilum
B. Scar of ovule II. Tegmen
C. Zygote III. Testa
D. Inner integument IV. Stalk of seed
    V. Embryo
  • A - V, B - I, C - II, D - IV

  • A - III, B - IV, C - I, D - V

  • A - IV, B - I, C - V, D - II

  • A - IV, B - V, C - III, D - II

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Chapter 1: Reproduction in Lower and Higher Plants

Exercise
Biology 12th Standard HSC for Maharashtra State Board - Shaalaa.com

Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board chapter 1 - Reproduction in Lower and Higher Plants

Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board chapter 1 (Reproduction in Lower and Higher Plants) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board Biology 12th Standard HSC for Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Balbharati textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Biology 12th Standard HSC for Maharashtra State Board chapter 1 Reproduction in Lower and Higher Plants are Reproduction in Lower and Higher Plants, Asexual Reproduction, Sexual Reproduction, Microsporogenesis, Structure of Anatropous Ovule, Megasporogenesis, Pollination, Outbreeding Devices (Contrivances), Pollen - Pistil Interaction, Double Fertilization, Development of Endosperm, Development of Embryo, Seed and Fruit Development, Apomixis, Parthenocarpy, Polyembryony.

Using Balbharati 12th Board Exam solutions Reproduction in Lower and Higher Plants exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Balbharati Solutions are important questions that can be asked in the final exam. Maximum students of Maharashtra State Board 12th Board Exam prefer Balbharati Textbook Solutions to score more in exam.

Get the free view of chapter 1 Reproduction in Lower and Higher Plants 12th Board Exam extra questions for Biology 12th Standard HSC for Maharashtra State Board and can use Shaalaa.com to keep it handy for your exam preparation

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