Basic Equation For Photosynthesis

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| By Malibubabe1994
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Malibubabe1994
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Photosynthesis Quizzes & Trivia

Quiz on photosynthesis


Questions and Answers
  • 1. 

    What is the purpose of photosynthesis?

    • A.

      To create NADPH

    • B.

      To make plants grow

    • C.

      To create carbohydrates from light energy

    • D.

      To create ATP for the plant

    Correct Answer(s)
    C. To create carbohydrates from light energy
    D. To create ATP for the plant
    Explanation
    Photosynthesis is the process by which plants convert light energy into chemical energy in the form of carbohydrates. This energy is stored in the form of glucose, which is essential for the growth and development of plants. Additionally, photosynthesis also produces ATP, a molecule that provides energy for various cellular processes in plants. Therefore, the purpose of photosynthesis is to create carbohydrates from light energy and to create ATP for the plant.

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  • 2. 

    What is the equation for photosynthesis?

    • A.

      Glucose+oxygen------------> (light energy) CO2+H20

    • B.

      CO2+H2O-----------> (light energy) gluscose+oxygen

    • C.

      ADP+P+energy

    Correct Answer
    B. CO2+H2O-----------> (light energy) gluscose+oxygen
    Explanation
    The equation for photosynthesis is CO2+H2O-----------> (light energy) glucose+oxygen. This equation represents the process of photosynthesis, where carbon dioxide (CO2) and water (H2O) are converted into glucose and oxygen with the help of light energy.

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  • 3. 

    What types of organisms undergo photosynthesis?

    • A.

      All living things

    • B.

      Humans

    • C.

      Bacteria

    • D.

      Plants

    Correct Answer
    D. Plants
    Explanation
    Plants are the organisms that undergo photosynthesis. Photosynthesis is the process by which plants convert sunlight, carbon dioxide, and water into glucose and oxygen. This process is essential for the survival of plants as it provides them with the energy they need to grow and reproduce. While other organisms, such as bacteria, may also undergo a form of photosynthesis, plants are the primary and most well-known examples of organisms that rely on this process for their survival.

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  • 4. 

    What are the two reactions that occur during photosynthesis?

    • A.

      Krebs cycle and calvin cycle

    • B.

      ATP and light reactions

    • C.

      Dark reactions and calvin cycle

    • D.

      Light reactions and calvin cycle

    Correct Answer
    D. Light reactions and calvin cycle
    Explanation
    During photosynthesis, light reactions and the Calvin cycle are the two main processes that occur. Light reactions take place in the thylakoid membrane of the chloroplasts and involve the absorption of light energy, which is used to produce ATP and NADPH. These energy-rich molecules are then used in the Calvin cycle, which occurs in the stroma of the chloroplasts. In the Calvin cycle, ATP and NADPH are used to convert carbon dioxide into glucose, a process known as carbon fixation. Therefore, the correct answer is light reactions and Calvin cycle.

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  • 5. 

    What are the inputs and outputs of light reactions?

    • A.

      ADP, H2O, NADP+, light energy (inputs) ATP, 1/2 O2, NADPH (outputs)

    • B.

      ADP, H2O, NADP+, light energy (outputs) ATP, 1/2 O2, NADPH (inputs)

    • C.

      There are none

    Correct Answer
    A. ADP, H2O, NADP+, light energy (inputs) ATP, 1/2 O2, NADPH (outputs)
    Explanation
    The inputs of light reactions are ADP, H2O, NADP+, and light energy. These are needed for the process of photosynthesis to occur. ADP is converted into ATP, H2O is split to release oxygen and protons, NADP+ is reduced to form NADPH, and light energy is absorbed by pigments to drive the reactions. The outputs of light reactions are ATP, 1/2 O2, and NADPH. ATP is a form of energy that can be used by the cell, oxygen is released as a byproduct, and NADPH is a molecule that carries high-energy electrons.

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  • 6. 

    How many atp go into the calvin cycle?

    • A.

      6

    • B.

      3

    • C.

      9

    • D.

      1

    Correct Answer
    C. 9
  • 7. 

    NADPH turns into what in the Calvin Cycle?

    • A.

      NADP

    • B.

      NAD+

    • C.

      NAD

    • D.

      NADP+

    Correct Answer
    D. NADP+
    Explanation
    In the Calvin Cycle, NADPH is oxidized to form NADP+. This occurs during the last step of the cycle, where NADPH donates its high-energy electrons to help convert carbon dioxide into glucose. This oxidation reaction is necessary to regenerate NADP+ so that it can be used again in the light-dependent reactions to accept more electrons and continue the cycle.

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  • 8. 

    What does PGAL (how many carbons?) turn into?

    • A.

      4, glucose

    • B.

      7, carbohydrates

    • C.

      3, glucose

    • D.

      3, hydrogen

    Correct Answer
    C. 3, glucose
    Explanation
    PGAL, also known as phosphoglyceraldehyde, is a three-carbon molecule. It is an intermediate product in the process of photosynthesis and can be converted into glucose. Glucose is a six-carbon sugar that serves as a primary source of energy in cells and is an essential component of carbohydrates. Therefore, the correct answer is 3, glucose.

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  • 9. 

    Where does the Light Reactions occur?

    • A.

      Thylakoids

    • B.

      Stroma

    • C.

      Thylakoids and chloroplasts

    • D.

      All the above

    Correct Answer
    C. Thylakoids and chloroplasts
    Explanation
    The light reactions of photosynthesis occur in the thylakoids, which are membrane-bound compartments within the chloroplasts. Thylakoids contain the pigments and proteins necessary for capturing light energy and converting it into chemical energy. Chloroplasts, on the other hand, are the organelles where photosynthesis takes place as a whole. They contain not only the thylakoids but also the stroma, a fluid-filled space where the dark reactions of photosynthesis occur. Therefore, the correct answer is "Thylakoids and chloroplasts" as both are involved in the light reactions.

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  • 10. 

    Where does the Calvin Cycle occur?

    • A.

      The entire cell

    • B.

      Stroma

    • C.

      The inner membrane of the thylakoids

    • D.

      Thylakoids

    Correct Answer
    B. Stroma
    Explanation
    The Calvin Cycle occurs in the stroma. The stroma is the fluid-filled space within the chloroplasts, where various enzymatic reactions take place. It is in the stroma that carbon dioxide is fixed and converted into glucose through a series of biochemical reactions. The thylakoids, on the other hand, are membrane structures within the chloroplasts where the light-dependent reactions of photosynthesis occur. Therefore, the correct answer is stroma, as it is the specific location where the Calvin Cycle occurs.

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  • 11. 

    What does ATP do?

    • A.

      Creates carbohyrdrates

    • B.

      Creates usable energy for cellular work

    • C.

      Makes photosynthesis

    • D.

      All the above

    Correct Answer
    B. Creates usable energy for cellular work
    Explanation
    ATP, or adenosine triphosphate, is a molecule that functions as the main energy currency of cells. It is responsible for storing and releasing energy required for various cellular processes. ATP is synthesized during cellular respiration and is used to power metabolic reactions, muscle contractions, and active transport across cell membranes. Therefore, the correct answer is "creates usable energy for cellular work."

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  • 12. 

    Whats the equation for ATP?

    • A.

      ADP+energy

    • B.

      ADP creates it

    • C.

      ADP+P+energy

    • D.

      A+P+P+P

    Correct Answer
    C. ADP+P+energy
    Explanation
    The correct answer is ADP+P+energy. ATP (adenosine triphosphate) is formed by the combination of ADP (adenosine diphosphate), a phosphate group (P), and energy. This equation represents the process of ATP synthesis, where ADP is phosphorylated by the addition of a phosphate group and energy is required for this reaction to occur.

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  • 13. 

    What is the function of NADP+?

    • A.

      To turn into NADPH

    • B.

      To create ATP

    • C.

      To make photosynthesis work

    • D.

      To create NADPH+

    Correct Answer
    A. To turn into NADPH
    Explanation
    NADP+ functions as an electron carrier in metabolic reactions, specifically in photosynthesis. It accepts electrons and hydrogen ions to form NADPH, which is an energy-rich molecule used in the synthesis of glucose and other organic compounds. NADPH is essential for the Calvin cycle, the process by which plants convert carbon dioxide into glucose. Therefore, the function of NADP+ is to be reduced to NADPH by accepting electrons and hydrogen ions.

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  • 14. 

    What is the job of the electron transport chain?

    • A.

      To make proteins

    • B.

      To make atp synthase

    • C.

      To transport a system of electrons and to evenually create lots of atp

    • D.

      To create FADH and NAD+

    Correct Answer
    C. To transport a system of electrons and to evenually create lots of atp
    Explanation
    The electron transport chain is responsible for transporting a system of electrons and eventually creating lots of ATP. This process occurs in the inner mitochondrial membrane and involves a series of protein complexes that transfer electrons from one molecule to another. As the electrons are transferred, energy is released and used to pump protons across the membrane, creating an electrochemical gradient. This gradient is then utilized by ATP synthase to produce ATP, which is the main energy currency of the cell.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 03, 2009
    Quiz Created by
    Malibubabe1994

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