Diffusion Osmosis Photsynthesis Respiration

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  • 1/12 Questions

    In diffusion, molecules move from an area of _____ concentration to an area of _____ concentration.

    • Low, high
    • High, low
    • Medium, low
    • Low, medium
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Test your knowledge of the cell processes we've covered so far!

Diffusion Osmosis Photsynthesis Respiration - Quiz

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  • 2. 

    Where does photosynthesis take place?

    • Mitochondria

    • Chloroplasts

    • Vacuoles

    Correct Answer
    A. Chloroplasts
    Explanation
    Photosynthesis is the process by which plants convert sunlight into energy. Chloroplasts, which are organelles found in plant cells, are responsible for carrying out photosynthesis. They contain chlorophyll, a pigment that captures sunlight and initiates the chemical reactions necessary for photosynthesis. Mitochondria, on the other hand, are responsible for cellular respiration, not photosynthesis. Vacuoles are storage compartments in plant cells and do not play a direct role in photosynthesis. Therefore, chloroplasts are the correct answer because they are the site where photosynthesis takes place.

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  • 3. 

    When carbon dioxide molecules move from high concentration to low concentration, we call the process _____.

    • Diffusion

    • Osmosis

    • Molecular movement

    • Oxygenation

    Correct Answer
    A. Diffusion
    Explanation
    Diffusion is the process by which molecules move from an area of high concentration to an area of low concentration. This movement occurs due to the random motion of molecules. In the given question, carbon dioxide molecules are mentioned to move from high concentration to low concentration, which aligns with the process of diffusion. Osmosis refers to the movement of water molecules across a selectively permeable membrane, molecular movement is a general term that does not specifically describe the movement of carbon dioxide, and oxygenation refers to the process of adding oxygen to something, which is not mentioned in the question.

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  • 4. 

    After molecules diffuse, they eventually reach a state of balance where concentrations are equal. This state is known as _____.

    • Equivalence

    • Equality

    • Equilibrium

    Correct Answer
    A. Equilibrium
    Explanation
    After molecules diffuse, they eventually reach a state of balance where concentrations are equal. This state is known as equilibrium. In this state, the movement of molecules becomes equal in all directions, resulting in a constant concentration throughout the system. At equilibrium, there is no net movement of molecules, and the system is stable.

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  • 5. 

    The movement of water molecules from high concentration to low concentration (usually through some kind of membrane) is called _____.

    • Diffusion

    • Osmosis

    • Molecular movement

    Correct Answer
    A. Osmosis
    Explanation
    Osmosis is the correct answer because it refers to the movement of water molecules from an area of high concentration to an area of low concentration through a semi-permeable membrane. This process occurs to equalize the concentration of solutes on both sides of the membrane. Diffusion, on the other hand, refers to the movement of any type of molecule, not just water, from an area of high concentration to low concentration. Molecular movement is a general term that encompasses both osmosis and diffusion.

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  • 6. 

    A cell containing 80% water is placed in a solution of 100% water. Because of this, we would expect the cell to _____.

    • Shrink

    • Stay the same

    • Swell

    Correct Answer
    A. Swell
    Explanation
    When a cell containing 80% water is placed in a solution of 100% water, water will move from the solution into the cell through osmosis. This is because water moves from an area of higher concentration to an area of lower concentration. As a result, the cell will gain water and increase in size, causing it to swell.

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  • 7. 

    Where does respiration mainly take place?

    • Mitochondria

    • Chloroplasts

    • Vacuoles

    Correct Answer
    A. Mitochondria
    Explanation
    Respiration mainly takes place in mitochondria. Mitochondria are known as the powerhouse of the cell because they are responsible for producing energy in the form of ATP through the process of cellular respiration. This process involves the breakdown of glucose and other organic molecules to release energy. Mitochondria have a highly folded inner membrane called cristae, which provides a large surface area for the enzymes involved in respiration. Therefore, the correct answer is mitochondria.

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  • 8. 

    Which of the following are the products of photosynthesis? There will be more than one.

    • Carbon dioxide

    • Glucose

    • Oxygen

    • Water

    Correct Answer(s)
    A. Glucose
    A. Oxygen
    Explanation
    Photosynthesis is the process by which plants convert sunlight into energy. During this process, carbon dioxide (CO2) is taken in from the atmosphere, and water (H2O) is absorbed from the roots. Using the energy from sunlight, plants produce glucose, a type of sugar, and release oxygen (O2) as a byproduct. Therefore, glucose and oxygen are both products of photosynthesis.

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  • 9. 

    Cells in our body are able to pick up oxygen from our blood because of a process known as _____.

    • Diffusion

    • Osmosis

    • Molecular movement

    Correct Answer
    A. Diffusion
    Explanation
    Cells in our body are able to pick up oxygen from our blood because of a process known as diffusion. Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration. In this case, oxygen molecules move from the higher concentration in the blood to the lower concentration inside the cells. This allows the cells to obtain the oxygen they need for various metabolic processes.

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  • 10. 

    Which of the following are the raw materials needed for photosynthesis (besides sunlight energy)? There will be more than one.

    • Carbon dioxide

    • Glucose

    • Oxygen

    • Water

    Correct Answer(s)
    A. Carbon dioxide
    A. Water
    Explanation
    The correct answer is carbon dioxide and water. These two substances are essential for photosynthesis to occur. Carbon dioxide is used by plants to produce glucose, which is their source of energy. Water is also necessary for photosynthesis as it is used to transport nutrients and minerals throughout the plant. Oxygen is actually a byproduct of photosynthesis and is released into the atmosphere. Glucose, on the other hand, is not a raw material for photosynthesis but rather a product of the process.

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  • 11. 

    Which of the following are the raw materials needed for respiration? There will be more than one.

    • Carbon dioxide

    • Glucose

    • Oxygen

    • Water

    Correct Answer(s)
    A. Glucose
    A. Oxygen
    Explanation
    The correct answer is glucose and oxygen. Glucose is a carbohydrate that serves as the main source of energy for cellular respiration. Oxygen is required as the final electron acceptor in the electron transport chain, which is a crucial step in the production of ATP through aerobic respiration.

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  • 12. 

    Which of the following are the products of respiration? There will be more than one.

    • Carbon dioxide

    • Glucose

    • Oxygen

    • Water

    • Energy the cell can use

    Correct Answer(s)
    A. Carbon dioxide
    A. Water
    A. Energy the cell can use
    Explanation
    The products of respiration include carbon dioxide, water, and energy that the cell can use. During respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide and water. This process also releases energy in the form of ATP, which the cell can use for various cellular activities.

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  • Current Version
  • May 15, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 05, 2012
    Quiz Created by
    Avincent004
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