NEET Biology Quiz
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Questions and Answers

What is the powerhouse of the cell?

  • Ribosome
  • Golgi apparatus
  • Mitochondria (correct)
  • Endoplasmic reticulum
  • Which process is responsible for the production of gametes?

  • Mitosis
  • Differentiation
  • Meiosis (correct)
  • Fertilization
  • What is the function of the chlorophyll in plant cells?

  • Producing hormones
  • Regulating cell growth
  • Storing water
  • Converting light energy into chemical energy (correct)
  • What happens to the gravitational potential energy when an object is lifted to a higher altitude?

    <p>It increases</p> Signup and view all the answers

    What is the formula for gravitational potential energy near the surface of the Earth?

    <p>mgh</p> Signup and view all the answers

    How does the gravitational potential energy change as an object falls freely towards the Earth's surface?

    <p>It becomes zero</p> Signup and view all the answers

    Study Notes

    Cell Biology

    • Mitochondria are often referred to as the "powerhouse of the cell" due to their role in producing adenosine triphosphate (ATP) through cellular respiration.
    • ATP serves as the primary energy currency in cells, fueling various biological processes.

    Reproductive Biology

    • Meiosis is the crucial process responsible for the production of gametes, which include sperm and egg cells.
    • This process reduces the chromosome number by half, ensuring that offspring receive a mix of genetic material from both parents.

    Plant Biology

    • Chlorophyll is a green pigment located in plant cells that plays a vital role in photosynthesis.
    • It captures light energy from the sun, converting it into chemical energy to produce glucose from carbon dioxide and water.

    Physics of Energy

    • Gravitational potential energy increases when an object is raised to a higher altitude, reflecting its elevated position in a gravitational field.
    • The formula for gravitational potential energy (PE) near the Earth’s surface is PE = mgh, where m is mass, g is the acceleration due to gravity (approximately 9.81 m/s²), and h is height above the ground.

    Dynamics of Energy

    • As an object falls freely towards the Earth’s surface, its gravitational potential energy decreases while its kinetic energy increases, conserving the total mechanical energy of the system.
    • The energy transformation during free fall follows the principle of conservation of energy, with energy shifting from potential to kinetic forms.

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    Description

    Test your knowledge of biology with this NEET quiz! Answer questions about the powerhouse of the cell, gamete production, and the function of chlorophyll in plant cells. Prepare for your NEET exam by practicing these essential biology concepts.

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