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Kerala SSLC (Class 10) Unit 2F1: Animal Cell Biology and Specialization — practice questions

Explore 22 free Unit 2F1: Animal Cell Biology and Specialization questions in Kerala SSLC (Class 10) Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Unit 2F1: Animal Cell Biology and Specialization questions and exercises with answers

Showing questions 1–22 of 22.

In class Aves, the exoskeleton is present in which form?Read the answer and worked solution →Which feature is the typical, defining character of class Mammalia?Read the answer and worked solution →The bat, an animal capable of flight, is correctly placed in which class?Read the answer and worked solution →Among the listed animals, which one can regenerate a broken part of its body?Read the answer and worked solution →An animal lives in your small intestine, has a thread-like body and possesses a pseudocoelom. To which phylum does it belong?Read the answer and worked solution →In the subphylum Cephalochordata, the notochord extends over what part of the body?Read the answer and worked solution →The skin of a reptile is best described as:Read the answer and worked solution →Herdmania has a freely swimming larva whose notochord is restricted to the tail region. This places it in which subphylum?Read the answer and worked solution →Which benefit of animal classification is correctly stated?Read the answer and worked solution →During the conversion of milk into yoghurt, lactose sugar is changed into which compound?Read the answer and worked solution →Among common dairy products, which one is produced with the help of fungi rather than bacteria?Read the answer and worked solution →Traditionally, the enzyme rennet for cheese came from the alimentary canal of cattle. Which enzyme from fungi now makes vegetarian cheese possible?Read the answer and worked solution →After ripening cheese for 12 to 18 months, which very hard variety is obtained?Read the answer and worked solution →Bread becomes spongy because the baker's yeast ferments carbohydrates and releases which gas into the dough?Read the answer and worked solution →Which yeast is the baker's yeast used to make the dough for bread?Read the answer and worked solution →Chemically, vinegar used to give a sour taste and preserve pickles is a roughly 4% solution of which acid?Read the answer and worked solution →In vinegar production, which bacterial mixture is added to ethanol so that it is converted into acetic acid?Read the answer and worked solution →Soya sauce is produced by fermenting a mixture of wheat or rice flour and soyabean with the help of which fungus?Read the answer and worked solution →Enzymes from bacilli and streptomyces are used on corn flour to obtain which product?Read the answer and worked solution →Monosodium glutamate (ajinomoto) is produced from the L-glutamic acid made by which microbes?Read the answer and worked solution →Which antibiotic is specifically noted as effective against tuberculosis?Read the answer and worked solution →Which gaseous fuel is obtained by the microbial anaerobic decomposition of urban, agricultural and industrial waste?Read the answer and worked solution →

Worked practice questions

In class Aves, the exoskeleton is present in which form?

  1. Calcareous spines
  2. Scales only
  3. Hairs
  4. Feathers
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Correct answer: D. Feathers

1. Birds are completely adapted for aerial life. 2. Their exoskeleton takes the form of feathers. 3. Rule out hairs: that is the exoskeleton form of mammals. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 6 "Animal Classification", p.83_

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Which feature is the typical, defining character of class Mammalia?

  1. Presence of mammary glands
  2. Forelimbs modified into wings
  3. Jaws modified into a beak
  4. Skin that is dry and scaly
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Correct answer: A. Presence of mammary glands

1. Each class has a signature feature. 2. The typical character of Mammalia is the presence of mammary glands. 3. Rule out wings: forelimbs modified into wings mark birds (Aves). 4. A beak and dry scaly skin point to Aves and Reptilia respectively. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 6 "Animal Classification", p.83_

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The bat, an animal capable of flight, is correctly placed in which class?

  1. Aves
  2. Mammalia
  3. Reptilia
  4. Amphibia
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Correct answer: B. Mammalia

1. The bat flies, which can tempt one toward Aves. 2. But the bat has hair and mammary glands, so it is a mammal. 3. Rule out Aves: birds have feathers and a beak, which the bat lacks. 4. Flight alone does not decide the class; mammary glands and hair do. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 6 "Animal Classification", p.83_

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