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NDA Life Processes in Living Organisms Part 2 — practice questions

Explore 21 free Life Processes in Living Organisms Part 2 questions in NDA 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

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CLASS10 · Biology · Hormone ↔ Function (Class 10 level)Read the answer and worked solution →The structural and functional unit of the nervous system is the:Read the answer and worked solution →A reflex action is best described as:Read the answer and worked solution →The portion of the brain that controls balance and coordination of body movements is the:Read the answer and worked solution →The hormone produced by the pancreas that lowers blood glucose level is:Read the answer and worked solution →Thyroxine, which regulates the metabolic rate of the body, is produced by the:Read the answer and worked solution →The 'master gland' that controls many other endocrine glands is the:Read the answer and worked solution →Adrenaline (epinephrine), the fight-or-flight hormone, is produced by the:Read the answer and worked solution →Phototropism is the:Read the answer and worked solution →Auxin is a plant hormone that mainly promotes:Read the answer and worked solution →The gap between two neurons across which a nerve impulse is transmitted (chemically) is the:Read the answer and worked solution →Geotropism shown by the roots of a plant is:Read the answer and worked solution →The number of pairs of cranial nerves in humans is:Read the answer and worked solution →The hormone that controls the level of sugar in blood by promoting glucose uptake by cells is:Read the answer and worked solution →Plants RESPOND to stimuli mainly through:Read the answer and worked solution →The IODINE-containing hormone is:Read the answer and worked solution →Order the path of a reflex actionRead the answer and worked solution →Match each plant response to its nameRead the answer and worked solution →Which part of the brain does the job?Read the answer and worked solution →Tap every plant hormoneRead the answer and worked solution →True or false: control and coordinationRead the answer and worked solution →

Worked practice questions

CLASS10 · Biology · Hormone ↔ Function (Class 10 level)

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Matching pairs
  1. Left
    Insulin
    Right
    Regulates blood sugar
  2. Left
    Thyroxine
    Right
    Controls metabolic rate
  3. Left
    Adrenaline
    Right
    Fight-or-flight response
Instructions
Match each hormone to its primary function.

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The structural and functional unit of the nervous system is the:

  1. Neuron
  2. Nephron
  3. Synapse
  4. Dendrite
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Correct answer: A. Neuron

1. The NEURON (nerve cell) is the basic unit. 2. Parts: dendrites (receive), cell body / soma, axon (sends signal). 3. Synapse is the JUNCTION between two neurons, not the unit. _Source: syllabus Science Ch 6 §6.1 Nervous System_

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A reflex action is best described as:

  1. A voluntary, planned movement
  2. An automatic, rapid response without conscious thought
  3. A slow learned response
  4. A purely chemical signal
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Correct answer: B. An automatic, rapid response without conscious thought

1. Reflex actions are AUTOMATIC: they don't wait for the brain to decide. 2. Path = reflex ARC, mediated mostly by the SPINAL CORD. 3. Examples: pulling hand off a hot plate, knee-jerk. _Source: syllabus Science Ch 6 §6.1.2 Reflex Action_

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