Photosynthesis And Respiration Blk 2

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Biology09
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Photosynthesis And Respiration Blk 2 - Quiz


photosynthesis and respiratoin quiz


Questions and Answers
  • 1. 

    What does photosynthesis depend on?

    • A.

      Chloroplast

    • B.

      Enzymes that fuction best between 0c and 35c

    • C.

      Tempertures

    • D.

      Factors

    Correct Answer
    B. Enzymes that fuction best between 0c and 35c
    Explanation
    Photosynthesis is a process by which plants convert sunlight, carbon dioxide, and water into glucose and oxygen. Enzymes play a crucial role in this process as they facilitate the chemical reactions involved. The correct answer suggests that photosynthesis depends on enzymes that function optimally within a temperature range of 0°C to 35°C. This temperature range is important because enzymes have specific temperature requirements for their optimal activity. Outside this range, the enzymes may denature or become less efficient, affecting the overall photosynthesis process.

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  • 2. 

    Which of the following statements is true about cellular respiration?

    • A.

      Aerobic respiration produces substantially more ATP than anaerobic respiration.

    • B.

      Aerobic respuration occurs before glycolysis

    • C.

      Anarobic respiration produces substantially more ATP than aerobic respiration.

    • D.

      Anaerobic respiration occurs before glycolysis

    Correct Answer
    A. Aerobic respiration produces substantially more ATP than anaerobic respiration.
    Explanation
    Aerobic respiration produces substantially more ATP than anaerobic respiration because aerobic respiration utilizes oxygen to break down glucose completely, resulting in the production of a larger amount of ATP. Anaerobic respiration, on the other hand, occurs in the absence of oxygen and only partially breaks down glucose, leading to a smaller yield of ATP.

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  • 3. 

    What are the two carriers produced during light-dependent  reaction?

    • A.

      ATP and NADPH

    • B.

      Sugar and carbon

    • C.

      Sugar and oxygen

    • D.

      Water and oxygen

    Correct Answer
    A. ATP and NADPH
    Explanation
    During the light-dependent reaction of photosynthesis, ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate) are produced. These molecules are essential for the next stage of photosynthesis, the light-independent reaction, also known as the Calvin cycle. ATP is a high-energy molecule that provides the necessary energy for various cellular processes, while NADPH is a reducing agent that carries high-energy electrons to be used in the synthesis of sugars during the Calvin cycle.

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  • 4. 

    What is the net gain of energy from aerobic respiration?

    • A.

      46

    • B.

      24

    • C.

      36

    • D.

      40

    Correct Answer
    C. 36
    Explanation
    Aerobic respiration is a process in which glucose is broken down in the presence of oxygen to produce energy in the form of ATP. The net gain of energy from aerobic respiration is 36 ATP molecules. This is because during the process, glucose is broken down into two molecules of pyruvate in glycolysis, which then enter the citric acid cycle and electron transport chain. Through these processes, a total of 36 ATP molecules are produced. Therefore, the correct answer is 36.

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  • 5. 

    What are the products of photosynthesis?

    • A.

      ATP and NADPH

    • B.

      Glycolysis

    • C.

      Water and carbon

    • D.

      Glucose and oxygen

    Correct Answer
    D. Glucose and oxygen
    Explanation
    Photosynthesis is the process by which plants convert sunlight into energy. During this process, carbon dioxide and water are converted into glucose and oxygen. Glucose is a simple sugar that serves as a source of energy for the plant, while oxygen is released as a byproduct. Therefore, the correct answer is glucose and oxygen.

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  • 6. 

    What is another name for anaerobic respiration?

    • A.

      Fermentation

    • B.

      Stroma

    • C.

      Mitochondria

    • D.

      Thylakoid

    Correct Answer
    A. Fermentation
    Explanation
    Fermentation is another name for anaerobic respiration. During anaerobic respiration, glucose is broken down without the presence of oxygen to produce energy in the form of ATP. This process occurs in the absence of oxygen and is commonly found in microorganisms like yeast and bacteria. Fermentation is an important metabolic process that allows cells to continue producing energy when oxygen is not available.

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  • 7. 

    What is another name for light-independent reaction?

    • A.

      Calvin cycle

    • B.

      ATP

    • C.

      Oxygen

    • D.

      Stroma

    Correct Answer
    A. Calvin cycle
    Explanation
    The correct answer is "calvin cycle". The calvin cycle, also known as the dark reaction or the light-independent reaction, is a series of biochemical reactions that occur in the chloroplasts of plants during photosynthesis. It takes place in the stroma, a fluid-filled region of the chloroplast, where carbon dioxide is converted into glucose using energy from ATP and NADPH produced during the light-dependent reactions. This cycle is named after Melvin Calvin, who discovered it in the 1950s.

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  • 8. 

    What is the difference between ATP and ADP?

    • A.

      One requires oxygen

    • B.

      Amount of carbon

    • C.

      Their the same

    • D.

      The number of phosphate

    Correct Answer
    D. The number of phosphate
    Explanation
    ATP (adenosine triphosphate) and ADP (adenosine diphosphate) are both molecules involved in energy transfer within cells. The main difference between them is the number of phosphate groups they contain. ATP has three phosphate groups, while ADP has two. When ATP is used for energy, it releases one phosphate group and becomes ADP. This release of a phosphate group releases energy that can be utilized by the cell. ADP can then be converted back to ATP through the process of phosphorylation, where it gains a phosphate group. Therefore, the correct answer is "the number of phosphate".

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  • 9. 

    Which of the following terms DOES NOT  require energy?

    • A.

      Aerobic

    • B.

      Photosynthesis

    • C.

      Anaerobic

    • D.

      Light-independent reaciton

    Correct Answer
    C. Anaerobic
    Explanation
    Anaerobic is the term that does not require energy. Anaerobic refers to a process that occurs without the presence of oxygen. In anaerobic conditions, energy is produced through fermentation or other anaerobic metabolic pathways that do not require the use of oxygen. In contrast, aerobic, photosynthesis, and light-independent reaction all involve energy consumption or production in the presence of oxygen or light.

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  • Current Version
  • Feb 14, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 14, 2009
    Quiz Created by
    Biology09

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