Photosynthesis And Cellular Respiration Quiz

Reviewed by Lindsey Block
Lindsey Block, PhD (Cellular & Molecular Biology) |
Lecturer | Molecular Biologist | Reproductive Scientist
Review Board Member
Lindsey, Ph.D. in cellular and molecular biology from the University of Wisconsin-Madison, specializes in Zika's impact on conception and preterm birth biomarkers. She completed courese on Advanced Cell Biology at the University of Illinois at Urbana-Champaign and Advanced Virology at University College Cork. Lindsey's accolades include three first-author papers, three fellowships, and active participation in five conference presentations. Currently associated with the University of Pennsylvania through a T32 NIH Postdoctoral Fellowship, she continues to contribute significantly to her field, combining academic rigor with practical research to advance understanding in reproductive health and prenatal care. Currently, she is a full time lecturer at Northwestern University - The Feinberg School of Medicine.
 , PhD (Cellular & Molecular Biology)
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  • 1/10 Questions

    Which organism performs photosynthesis?

    • Animals
    • Bacteria
    • Plants
    • Fungi
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About This Quiz


Are you ready to explore how plants and animals use energy? Our Photosynthesis and Cellular Respiration Quiz is here to guide you through these vital biological processes. Photosynthesis allows plants to capture sunlight and convert it into energy, creating oxygen and glucose from water and carbon dioxide. Then, cellular respiration takes this glucose and breaks it down, enabling both plants and animals to produce the energy needed for life.

This quiz will test your knowledge of how these processes work together to sustain life on Earth. You will learn about the inputs and outputs of each process, and understand their importance to our ecosystem. This quiz aims to enhance your understanding of how life around us operates at a cellular level. So, let's get started!

Photosynthesis And Cellular Respiration Quiz - Quiz

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  • 2. 

    What is the primary pigment in plants that absorbs light?

    • Chlorophyll

    • Hemoglobin

    • Myoglobin

    • Cytochrome

    Correct Answer
    A. Chlorophyll
    Explanation
    Chlorophyll is the primary pigment in plants responsible for absorbing light necessary for photosynthesis. It captures specific wavelengths of light most effectively, particularly in the blue and red spectrum, while reflecting green, which is why plants appear green. Chlorophyll’s ability to absorb light energy and convert it into a form usable for chemical reactions in the chloroplast makes it essential for the photosynthetic process.

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  • 3. 

    Where does photosynthesis occur in plant cells?

    • Mitochondria

    • Ribosomes

    • Chloroplasts

    • Nucleus

    Correct Answer
    A. Chloroplasts
    Explanation
    Photosynthesis occurs in the chloroplasts of plant cells. These organelles contain chlorophyll and are optimized for converting light energy into chemical energy. Chloroplasts have a unique structure with thylakoid membranes where the light-dependent reactions of photosynthesis capture sunlight, and the stroma where the Calvin cycle synthesizes glucose from carbon dioxide, demonstrating a specialized adaptation for photosynthesis.

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  • 4. 

    What process do both plants and animals use to release energy from food?

    • Cellular respiration

    • Fermentation

    • Photolysis

    • Transpiration

    Correct Answer
    A. Cellular respiration
    Explanation
    Cellular respiration is a process used by all plants and animals to release stored energy from glucose. During cellular respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide, water, and energy in the form of ATP (adenosine triphosphate). This process is crucial for maintaining the life processes of cells by providing the necessary energy to power cellular activities.

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  • 5. 

    Where does cellular respiration primarily occur?

    • Golgi apparatus

    • Mitochondria

    • Endoplasmic reticulum

    • Cytoplasm

    Correct Answer
    A. Mitochondria
    Explanation
    Cellular respiration primarily occurs in the mitochondria, the powerhouse of the cell. Mitochondria are specialized organelles that facilitate the conversion of energy stored in glucose into ATP through a series of chemical reactions known as the Krebs cycle and oxidative phosphorylation. The efficiency of mitochondria in energy conversion underscores their vital role in cellular metabolism and energy production.

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  • 6. 

    What is photosynthesis?

    • Conversion of light to heat

    • Conversion of light to chemical energy

    • Conversion of oxygen to carbon dioxide

    • Conversion of glucose to energy

    Correct Answer
    A. Conversion of light to chemical energy
    Explanation
    Photosynthesis is the process through which plants, algae, and certain bacteria convert light energy into chemical energy. Specifically, light energy is captured by chlorophyll and used to convert carbon dioxide and water into glucose and oxygen. This transformation is critical as it forms the basis of the energy supply for nearly all life forms on Earth by providing organic molecules and atmospheric oxygen.

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  • 7. 

    What does cellular respiration break down to release energy?

    • Proteins

    • Lipids

    • Glucose

    • Nucleic acids

    Correct Answer
    A. Glucose
    Explanation
    In cellular respiration, glucose is the primary molecule broken down to release energy. This process, starting with glycolysis and continuing through the Krebs cycle and the electron transport chain, systematically extracts energy from the glucose molecule to synthesize ATP, providing the energy required for various cellular functions. The breakdown of glucose illustrates the central role of carbohydrates in cellular energy cycles, highlighting the interconnectedness of metabolism and energy production in life.

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  • 8. 

    What is the main byproduct of cellular respiration?

    • Glucose

    • Oxygen

    • Carbon dioxide

    • Hydrogen

    Correct Answer
    A. Carbon dioxide
    Explanation
    The main byproduct of cellular respiration is carbon dioxide. This gas is produced during the Krebs cycle, where carbon from glucose is oxidized, and then released as waste from cells into the bloodstream, to be expelled through the respiratory system. The release of carbon dioxide is a necessary part of metabolic cycles in cells, balancing oxygen intake and maintaining acid-base homeostasis in the body.

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  • 9. 

    What is the main product of photosynthesis?

    • Carbon dioxide

    • Water

    • Oxygen

    • Glucose

    Correct Answer
    A. Glucose
    Explanation
    The main product of photosynthesis is glucose, which serves as an energy storage molecule. Plants use glucose as a source of energy and a building block for growth. The synthesis of glucose from carbon dioxide and water during photosynthesis not only provides essential organic compounds but also releases oxygen as a byproduct, which is vital for aerobic respiration in both plants and animals.

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  • 10. 

    Which is a product of both photosynthesis and cellular respiration?

    • Water

    • Sunlight

    • Carbon dioxide

    • Energy

    Correct Answer
    A. Water
    Explanation
    Water is a product of both photosynthesis and cellular respiration. In photosynthesis, water molecules are split into oxygen, protons, and electrons during the light-dependent reactions, which are essential for glucose synthesis. In cellular respiration, water is formed as a byproduct when electrons combine with oxygen at the end of the electron transport chain, helping to stabilize the energy transfer and synthesis processes in cells.

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Lindsey Block |PhD (Cellular & Molecular Biology) |
Lecturer | Molecular Biologist | Reproductive Scientist
Lindsey, Ph.D. in cellular and molecular biology from the University of Wisconsin-Madison, specializes in Zika's impact on conception and preterm birth biomarkers. She completed courese on Advanced Cell Biology at the University of Illinois at Urbana-Champaign and Advanced Virology at University College Cork. Lindsey's accolades include three first-author papers, three fellowships, and active participation in five conference presentations. Currently associated with the University of Pennsylvania through a T32 NIH Postdoctoral Fellowship, she continues to contribute significantly to her field, combining academic rigor with practical research to advance understanding in reproductive health and prenatal care. Currently, she is a full time lecturer at Northwestern University - The Feinberg School of Medicine.

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  • Current Version
  • Apr 10, 2025
    Quiz Edited by
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    Expert Reviewed by
    Lindsey Block
  • Apr 14, 2009
    Quiz Created by
    Raleighegypt
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