Biology Syllabus Maharashtra State Overview

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Questions and Answers

What is the main focus of the biology syllabus developed by the Maharashtra State Bureau of Textbook Production?

Focus on historical aspects of biology

Understanding and appreciation of living beings (correct)

Development of laboratory skills only

Memorization of biological terms

How does the new biology syllabus support the concept of self-learning?

By providing extensive lectures from experts

By discouraging independent activities

By focusing solely on theoretical knowledge

Through the principle of constructivism (correct)

Which feature of the textbook contributes to clarity in understanding biological concepts?

Use of color illustrations (correct)

Inclusion of more complex terminology

Lengthy textual explanations

Supplementary reading materials

What kind of activities are introduced for the first time in the syllabus?

Independent activities Signup and view all the answers

What do QR codes in the textbook facilitate?

Access to additional information and practice questions Signup and view all the answers

How does the revised syllabus aim to address real-life applications?

Through its emphasis on inheritance, conservation, and technology Signup and view all the answers

Which maxim of teaching is adhered to in the biology syllabus?

Moving from concrete to abstract Signup and view all the answers

Who benefits from the efforts taken to prepare the textbook?

Students, teachers, parents, and aspiring candidates Signup and view all the answers

What defines geitonogamy in flowering plants?

Pollen transfer within a single flower or between two flowers on the same plant Signup and view all the answers

Which type of pollination is characterized by pollen being transferred from the anther of one flower to the stigma of another flower of a different plant within the same species?

Xenogamy Signup and view all the answers

Which of the following is NOT a feature of autogamy?

It always leads to genetic variations in the offspring Signup and view all the answers

What is the significance of homogamy in pollination?

It involves simultaneous maturation of anther and stigma Signup and view all the answers

Which pollination type does NOT involve any external pollinating agents?

Cleistogamy Signup and view all the answers

What are abiotic agents responsible for in pollination?

They encompass non-living factors like wind and water Signup and view all the answers

Which of the following adaptations is typically associated with flowers that utilize autogamy?

Cleistogamous structures Signup and view all the answers

What is the ecological significance of self-pollination compared to cross-pollination?

It usually results in lower diversity among offsprings Signup and view all the answers

What defines the stage at which pollen grains are shed from the anther in most angiosperms?

Two-celled stage Signup and view all the answers

Which part of the ovule contains the haploid megaspores after the process of megasporogenesis?

Nucellus Signup and view all the answers

How many nuclei are present in the mature embryo sac just before fertilization?

Seven nuclei Signup and view all the answers

What is the primary process by which the megaspore mother cell (MMC) produces haploid megaspores?

Meiosis Signup and view all the answers

What occurs to the two haploid polar nuclei in the embryo sac before fertilization?

They fuse to form a diploid nucleus Signup and view all the answers

What does the lower tier of four cells of the octant develop into?

Hypocotyl and radicle Signup and view all the answers

What cell structure do the antipodal cells represent within the mature embryo sac?

A group of three cells at the chalazal end Signup and view all the answers

What is the primary function of the megaspores formed from the megaspore mother cell?

They develop into female gametes Signup and view all the answers

How many mitotic divisions does the embryonal initial undergo to form the octant?

Three Signup and view all the answers

Which of the following statements about the suspensor is correct?

It is filamentous and consists of 6-10 cells. Signup and view all the answers

Which of the following stages follows after the formation of four haploid megaspores?

Development of the embryo sac Signup and view all the answers

Which cell is referred to as the terminal or embryonal initial cell?

The small cell towards the chalaza Signup and view all the answers

What structure do the upper tier cells of the octant give rise to?

Plumule and one or two cotyledons Signup and view all the answers

What is the role of the suspensor in embryonic development?

It supports the developing embryo. Signup and view all the answers

In which direction are the planes of division in the embryonal initial set?

At right angles to each other Signup and view all the answers

Which parts of the embryo are involved in the formation of the cotyledons?

The upper tier of the octant cells Signup and view all the answers

What is the main characteristic of cleistogamous flowers?

They self-pollinate before opening. Signup and view all the answers

Which of the following adaptations is NOT typical of anemophilous flowers?

Flowers are large and colorful. Signup and view all the answers

Why do anemophilous plants produce light and dry pollen grains?

To increase chances of being carried by wind. Signup and view all the answers

What role does the feathery stigma serve in anemophilous flowers?

To capture pollen carried by the wind. Signup and view all the answers

Which of the following features is characteristic of the pollen grains of wind-pollinated plants?

They are long and ribbon-like, without exine. Signup and view all the answers

What is the specific gravity of pollen grains in aquatic plants like Vallisneria?

Equal to water. Signup and view all the answers

Which of the following statements about chasmogamous and cleistogamous flowers is true?

Both types can be found on the same plant. Signup and view all the answers

Which type of plant is an example of epihydrophily?

Vallisneria Signup and view all the answers

What initiates seed development in plants?

Fertilization Signup and view all the answers

What is transformed into the seed coat of a mature seed?

Integuments of fertilized ovule Signup and view all the answers

What role do cotyledons play in non-endospermic seeds?

Photosynthesis Signup and view all the answers

What is the micropyle's function in a seed?

To allow water and oxygen entry Signup and view all the answers

What stimulates fruit development after fertilization?

Hormones produced by developing seeds Signup and view all the answers

What characterizes apomixis?

Formation of embryo(s) without fertilization Signup and view all the answers

Which layer of the fruit is known as the pericarp?

Three layered structure of the ovary wall Signup and view all the answers

What is the difference between true fruit and false fruit?

True fruit forms from ovary while false fruit does not Signup and view all the answers

Study Notes

Biology Standard XII

Textbook is prescribed for academic year 2020-21
Q.R. Code on textbook allows access to audio-visual study material for each lesson.
DIKSHA App can be downloaded on smartphones to access study materials
Coordination Committee formed by GR No. Abhyas - 2116/(Pra.Kra.43/16) SD - 4 dated 25.4.2016 approved the textbook.
This textbook was implemented in 2020-2021.
Committee, Study Group, Illustration and Cover, Typesetting, Co-ordination, Special Officer, Paper, Print Order, Printer, Production, Chief Production Officer, Production Officer, Publisher(details are of the textbook contributors)

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Description

Explore the key features of the biology syllabus developed by the Maharashtra State Bureau of Textbook Production. This quiz covers topics like self-learning support, clarity in concepts, innovative activities, and real-life applications included in the syllabus. Test your knowledge on various types of pollination and key biological terms relevant to the curriculum.