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CBSE Class 10 Biology (Science) Practice Paper 2017-2018

Sep 26, 2017 10:20 IST
    Class 10 Biology (Science) Practice Paper
    Class 10 Biology (Science) Practice Paper

    Jagranjos brings CBSE Class 10 Biology (Science) Practice Paper 2017-2018. This paper consists of all important questions of class 10 Biology which will help students prepare for the Periodic Tests, Half Yearly Exams as well as for the Board Examinations 2018. Questions asked in this practice paper will not only help students get an idea of the important topics to be prepared, but will also help them in understanding the depth with which these topics should be studied.

    CBSE Class 10 Question Papers 2017: All Subjects

    This year as per the CBSE’s remodeled assessment structure which has made the CBSE Class 10 Board exams mandatory, the assessment scheme will have an 80 marks component for class 10 Board examination in all scholastic subjects along with a 20 marks component of Internal Assessment (IA).

    CBSE Class 10 New Exam Pattern 2017-2018

    IA comprises:

    • Periodic Tests (PT) with weightage of 10 marks
    • Notebook Submission of 5 marks
    • Subject Enrichment Activities of 5 marks.

    To do well in the changed exam structure students must have a good hold over the important topics and questions for which solving more and more practice papres is the best way.

    CBSE Class 10 Board Exam 2017-18: Preparation strategy for changed exam structure

    Few sample questions from the Question Paper are given below:

    Q. Where does the process of fertilisation take place in human females?

    Q. List the two ways which can be used to check the contamination of river water.

    Q. In case of the sexual reproduction the number of chromosomes in parents and their offspring is the same. Justify this statement.

    Q. What is water harvesting? How can this technique help in the conservation of water?

    Q. What is the importance of D.N.A replication in asexual reproduction? Why is variation beneficial to the species? Explain with suitable example.

    Q. (a) What do you mean by ‘Evolution’? List the various sources which provide evidences for the evolution.
    (b) Give the evidence that the birds have evolved from reptiles.

    Q. (a) Name the respective part of the human female reproductive system:
    (i) where fertilisation of egg takes place.
    (ii) where development of embryo takes place.
    (iii) which provides all the nourishment to the developing foetus.
    (b) Describe in brief what happens to the zygote after it gets implanted.

    CBSE Class 10 Board Exam 2017, Marking Scheme: All Subjects

    Q. Teacher asked the students to study the different parts of an embryo of a gram seed. The steps likely to be followed are listed in a haphazard manner:
    (i) Soak the gram seeds in plain water and keep them overnight.
    (ii) Cut open the soaked seed and observe its different parts.
    (iii) Take some dry gram seeds in a petri dish.
    (iv) Drain the excess water.
    (v) Cover the soaked seeds with a wet cotton cloth and leave them for a day.
    The correct sequence of these steps is:
    (a) iii, I, v, iv, ii
    (b) iii, I, ii, iv, v
    (c) iii. iv, v, i, ii
    (d) iii, i, iv, v, ii

    Click Here, To Get the Complete Practice Paper

    DISCLAIMER: JPL and its affiliates shall have no liability for any views, thoughts and comments expressed on this article.

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