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UP Board Class 10 Cell: Structure and Functions — practice questions

Explore 49 free Cell: Structure and Functions questions in UP Board Class 10 Science. Open each question or exercise to read its content, reference answers and available explanation.

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Cell: Structure and Functions questions and exercises with answers

Showing questions 1–30 of 49.

Microorganisms are classified into four major groups. These groups are bacteria, fungi, protozoa and:Read the answer and worked solution →Yeast is used in the baking industry because, during respiration, it produces:Read the answer and worked solution →The conversion of sugar into alcohol by yeast is called:Read the answer and worked solution →Medicines that kill or stop the growth of disease-causing microorganisms are called:Read the answer and worked solution →Cholera is caused by:Read the answer and worked solution →The female mosquito that carries the malaria parasite (Plasmodium) is:Read the answer and worked solution →Edward Jenner (1798) is credited with discovering the vaccine for:Read the answer and worked solution →Common edible preservatives that prevent microbial growth in pickles and jams are:Read the answer and worked solution →Tuberculosis is caused by:Read the answer and worked solution →Malaria is caused by:Read the answer and worked solution →The female Aedes mosquito is best known as the carrier of:Read the answer and worked solution →Rust of wheat is a plant disease caused by:Read the answer and worked solution →Rhizobium bacteria, which fix atmospheric nitrogen into soil, live mainly in:Read the answer and worked solution →Which of the following diseases is caused by a VIRUS?Read the answer and worked solution →The 'large holes' in Swiss cheese are produced by:Read the answer and worked solution →'Toddy' — a traditional fermented drink of southern India — is made from:Read the answer and worked solution →Among the following beverages, which is produced WITHOUT distillation?Read the answer and worked solution →Citric acid is produced industrially by:Read the answer and worked solution →Production of acetic acid (vinegar) industrially uses:Read the answer and worked solution →The cell cycle is conventionally divided into:Read the answer and worked solution →DNA replication occurs during which phase?Read the answer and worked solution →Mitosis produces:Read the answer and worked solution →Meiosis is the type of cell division that produces:Read the answer and worked solution →The phases of mitosis in correct order are:Read the answer and worked solution →At the end of S phase, each chromosome consists of:Read the answer and worked solution →The five sub-stages of prophase I of meiosis are:Read the answer and worked solution →In meiosis, the homologous chromosomes separate during:Read the answer and worked solution →During metaphase, chromosomes align at the:Read the answer and worked solution →In G2 of interphase, DNA content per cell relative to G1 is:Read the answer and worked solution →The synaptonemal complex is formed during:Read the answer and worked solution →

Worked practice questions

Microorganisms are classified into four major groups. These groups are bacteria, fungi, protozoa and:

  1. Insects
  2. Plants
  3. Algae
  4. Annelids
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Correct answer: C. Algae

The four major groups of microorganisms named in the chapter are bacteria, fungi, protozoa and algae. Viruses, though microscopic, are considered separately because they reproduce only inside a host.

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Yeast is used in the baking industry because, during respiration, it produces:

  1. Methane
  2. Carbon dioxide
  3. Oxygen
  4. Steam
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Correct answer: B. Carbon dioxide

Yeast reproduces rapidly in warm sugary dough and releases carbon dioxide during respiration. Bubbles of this gas fill the dough and make it rise.

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The conversion of sugar into alcohol by yeast is called:

  1. Fermentation
  2. Digestion
  3. Decomposition
  4. Pasteurisation
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Correct answer: A. Fermentation

This process — discovered by Louis Pasteur in 1857 — is called fermentation, and is the basis of alcohol and wine production.

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