PYQ Vault

Day 9: MH SSC Class 10 Science and Technology II

5 questions (7 parts). Try each one first, then open its answer.

  1. Question 1 (case study, 3 parts)

    Animal Classification. Asked 2 times: Mar 2019, Mar 2024* (* = numbers or wording changed that year)

    Read the statements and answer accordingly (identify the group and give one example):
    Q3(viii)(a)
    Calcareous spines are present on the body. Tube feet are used for locomotion and for capturing prey also. — Identify the phylum and give one example.
    Q3(viii)(b)
    I live in your small intestine. Pseudocoelom is present in my thread-like body. — Identify the phylum and give one example.
    Q3(viii)(c)
    My body is spindle shaped. I respire with the help of gills. — Identify my class and give one example.

  2. Question 2

    Cell Biology and Biotechnology. Asked 2 times: Mar 2022, Mar 2024* (* = numbers or wording changed that year)

    Explain the following terms:
    Q3(ii)(c)
    Explain the term: Genetically modified crops.

  3. Question 3

    Introduction to Microbiology. Asked 2 times: Mar 2020, Mar 2024* (* = numbers or wording changed that year)

    Q3(iii)
    Complete the given paragraph by filling the blank spaces from the options given in the bracket. [oxygen, pyridines, mechanical, CO2CO_2, petroleum, fatal, polyester, norcadia] Spilling of ____ oil occurs in the ocean due to various reasons. This oil may prove ____ and toxic to aquatic organisms. It is not easy to remove the oil layer from the surface of water by ____ method. However, bacteria like Pseudomonas spp. and Alcanovorax borkumensis have the ability to destroy the ____ and other chemicals. Hence, these bacteria are used to clear the oil spills. These are called hydrocarbonoclastic bacteria (HCB). HCB decompose the hydrocarbons and bring about the reaction of carbon with ____ . ____ and water is formed in this process.

  4. Question 4

    Life Processes in Living Organisms Part 1. Asked 2 times: Mar 2020, Mar 2024

    Q2(A)(iii)
    Give scientific reason: We feel tired after exercise.

  5. Question 5

    Life Processes in Living Organisms Part 1. Asked 2 times: Mar 2022, Mar 2024* (* = numbers or wording changed that year)

    Q3(i)
    (a) What are vitamins? (b) Classify them according to their solubility. (c) Give one example of each type as per the above classification.