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UP Board Class 10 Life Processes in Living Organisms Part 2 — practice questions — page 2

Explore 77 free Life Processes in Living Organisms Part 2 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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Life Processes in Living Organisms Part 2 questions and exercises with answers

Showing questions 31–60 of 77.

Which of the following is not an involuntary action?Read the answer and worked solution →Which statement is not true about thyroxin?Read the answer and worked solution →Dwarfism results due toRead the answer and worked solution →A doctor advised a person to take an injection of insulin becauseRead the answer and worked solution →The hormone which increases the fertility in males is calledRead the answer and worked solution →Which of the following endocrine glands is unpaired?Read the answer and worked solution →Junction between two neurons is calledRead the answer and worked solution →In humans, the life processes are controlled and regulated byRead the answer and worked solution →Which of the following is the basic event of reproduction at the cellular level?Read the answer and worked solution →Which unicellular organism reproduces by binary fission in any plane?Read the answer and worked solution →Which organism reproduces by multiple fission?Read the answer and worked solution →Spirogyra reproduces by which method?Read the answer and worked solution →The ability of Hydra and Planaria to grow into a full organism from a body piece is called:Read the answer and worked solution →In Hydra, reproduction by an outgrowth of cells at one side of the body is called:Read the answer and worked solution →Which structure on the leaf of Bryophyllum gives rise to new plants?Read the answer and worked solution →In tissue culture, cells from the growing tip of a plant first multiply into a:Read the answer and worked solution →In Rhizopus, the structures that produce spores are called:Read the answer and worked solution →A clear advantage of vegetative propagation is that the new plants:Read the answer and worked solution →The male reproductive part of a flower is the:Read the answer and worked solution →Pollen grains are produced inside the:Read the answer and worked solution →The transfer of pollen from anther to stigma is called:Read the answer and worked solution →Self-pollination occurs when pollen is transferred:Read the answer and worked solution →Fertilisation in flowering plants occurs in the:Read the answer and worked solution →After fertilisation, the ovule develops into the:Read the answer and worked solution →The structure that produces sperm in the human male is the:Read the answer and worked solution →The hormone that triggers the changes of puberty in human females is mainly:Read the answer and worked solution →In humans, fertilisation normally takes place in the:Read the answer and worked solution →The menstrual cycle of a normal human female lasts approximately how many days?Read the answer and worked solution →A barrier method of contraception is the:Read the answer and worked solution →Hormonal contraceptive pills act primarily by:Read the answer and worked solution →

Worked practice questions

Which of the following is not an involuntary action?

  1. Vomiting
  2. Salivation
  3. Heart beat
  4. Chewing
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Correct answer: D. Chewing

This Control and Coordination item tests a core Biology concept. Correct answer: Chewing. _Source: syllabus Exemplar Science Class 10_

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Which statement is not true about thyroxin?

  1. It regulates carbohydrates, protein and fat metabolism in the body
  2. Iron is essential for the synthesis of thyroxin
  3. Thyroid gland requires iodine to synthesise thyroxin
  4. Thyroxin is also called thyroid hormone
Show answer and solution

Correct answer: B. Iron is essential for the synthesis of thyroxin

This Control and Coordination item tests a core Biology concept. Correct answer: Iron is essential for the synthesis of thyroxin. _Source: syllabus Exemplar Science Class 10_

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Dwarfism results due to

  1. Excess secretion of thyroxin
  2. Less secretion of adrenaline
  3. Less secretion of growth hormone
  4. Excess secretion of growth hormone
Show answer and solution

Correct answer: C. Less secretion of growth hormone

This Control and Coordination item tests a core Biology concept. Correct answer: Less secretion of growth hormone. _Source: syllabus Exemplar Science Class 10_

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