10th Grade Biology With Lab: Osmosis And Diffusion.

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  • 1/22 Questions

    The Diffusion of water throught a semi-permeable membrane is

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About This Quiz

Both osmosis and diffusion as we have come to learn involves the transfer of water and particles from one area to another area. The transfer depends on the level of concentration and if there is a semi permeable membrane. Test out what you understand by this two through the quiz below.

Cell Biology Quizzes & Trivia

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  • 2. 

    Molecules tend to move from an area of high concentration to an area of low concentration in a  process known as

    Explanation
    Diffusion is the process in which molecules move from an area of high concentration to an area of low concentration. This occurs due to the random motion of molecules, where they spread out to achieve a more uniform distribution. Diffusion is driven by the concentration gradient, where molecules move down the concentration gradient until equilibrium is reached. This process is essential for various biological and physical phenomena, such as the exchange of gases in the lungs, the movement of nutrients and waste products across cell membranes, and the mixing of substances in a liquid or gas.

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  • 3. 

    Materials that are actively removed from the cell

    • Exocytosis

    • Endocytosis

    • Phagocytosis

    • Pinocytosis

    • Osmosis

    Correct Answer
    A. Exocytosis
    Explanation
    Exocytosis is the process by which materials are actively removed from the cell. During exocytosis, vesicles containing cellular waste or secretory products fuse with the plasma membrane and release their contents outside the cell. This process is important for the removal of waste materials, secretion of hormones and enzymes, and neurotransmitter release. It is a vital mechanism for maintaining cellular homeostasis and communication with the external environment.

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  • 4. 

    Movement of materials in and out of the cell may or may not require

    Correct Answer
    energy
    Explanation
    The movement of materials in and out of the cell may or may not require energy because different processes are involved. Passive transport, such as diffusion and osmosis, does not require energy as it occurs along the concentration gradient. On the other hand, active transport requires energy as it moves substances against the concentration gradient. Therefore, depending on the specific process involved, energy may or may not be required for the movement of materials in and out of the cell.

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  • 5. 

    What is the movement of substance from high concentration to low concentration?

    • Osmosis

    • Diffusion

    • ATP

    • Hypertonic

    • Active Transport

    Correct Answer
    A. Diffusion
    Explanation
    Diffusion is the movement of substances from an area of high concentration to an area of low concentration. This process occurs naturally and does not require any energy input. It is driven by the random movement of particles, which causes them to spread out and become evenly distributed. Diffusion is an important process in various biological systems, such as the exchange of gases in the lungs and the movement of nutrients and waste products across cell membranes.

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  • 6. 

    Facilitated diffusion is often used to transport

    • Molecules that are too large to pass through the cell membrane

    • Ions

    • Water

    • Molecules soluble in lipids

    Correct Answer
    A. Molecules that are too large to pass through the cell membrane
    Explanation
    Facilitated diffusion is a type of passive transport that helps in the movement of molecules across the cell membrane. It involves the use of protein channels or carrier proteins to transport molecules that are too large to pass through the cell membrane on their own. These molecules bind to the protein channels or carrier proteins, which then undergo a conformational change to transport the molecules across the membrane. This process does not require energy expenditure from the cell. Therefore, facilitated diffusion is commonly used for the transportation of large molecules that cannot freely diffuse through the cell membrane.

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  • 7. 

    Liquid materials

    • Exocytosis

    • Endocytosis

    • Phagocytosis

    • Pinocytosis

    • Osmosis

    Correct Answer
    A. Pinocytosis
    Explanation
    Pinocytosis is the process by which cells take in fluid and dissolved substances from their surroundings by forming small vesicles. It is a type of endocytosis, where the cell membrane invaginates and engulfs the extracellular fluid. This process allows the cell to take in nutrients, ions, and other small molecules that are dissolved in the surrounding fluid. Unlike phagocytosis, which involves the engulfment of solid particles, pinocytosis involves the uptake of liquid materials. Osmosis, on the other hand, is the movement of water molecules across a semipermeable membrane to equalize the concentration of solutes on both sides.

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  • 8. 

    What is the sum of all chemical reactions?

    • Osmosis.

    • Diffusion.

    • Metabolism.

    • Endocytosis

    • Exocytosis

    Correct Answer
    A. Metabolism.
    Explanation
    Metabolism refers to the sum of all chemical reactions that occur within an organism. It involves the processes of breaking down and building up molecules to obtain energy and create necessary substances for the body. Osmosis, diffusion, endocytosis, and exocytosis are all specific types of cellular processes and do not encompass the entirety of chemical reactions. Therefore, metabolism is the correct answer as it encompasses all chemical reactions in an organism.

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  • 9. 

    Passive transport goes from

    • Low:high

    • High:low

    • None of the above

    • High:higher

    Correct Answer
    A. High:low
    Explanation
    Passive transport refers to the movement of molecules across a cell membrane without the use of energy. In this case, the correct answer "high:low" indicates that passive transport occurs from an area of high concentration to an area of low concentration. This process is called diffusion, where molecules move down their concentration gradient, from an area of higher concentration to an area of lower concentration, in order to achieve equilibrium.

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  • 10. 

    What is the diffusion of a substance through the cell membrane with the "help" of a protein channel?

    • Facilitated diffusion

    • Osmosis

    • Active transport

    • Phagocytosis

    • Pinocytosis

    Correct Answer
    A. Facilitated diffusion
    Explanation
    Facilitated diffusion is the correct answer because it refers to the process of a substance moving across the cell membrane with the assistance of a protein channel. This type of diffusion does not require energy expenditure by the cell and allows for the movement of larger or charged molecules that cannot easily pass through the lipid bilayer of the membrane. Osmosis is the diffusion of water molecules, while active transport requires energy expenditure by the cell. Phagocytosis and pinocytosis are both forms of endocytosis, which involve the engulfment of large particles or fluids by the cell, respectively.

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  • 11. 

    Energy is_____________ needed

    Correct Answer
    not
    Explanation
    The given correct answer is "not". It can be inferred that the question is asking about the amount of energy needed, and the answer indicates that energy is not needed. However, without further context, it is difficult to provide a more specific explanation.

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  • 12. 

    Solid materials

    • Exocytosis

    • Endocytosis

    • Phagocytosis

    • Pinocytosis

    • Osmosis

    Correct Answer
    A. Phagocytosis
    Explanation
    Phagocytosis is a type of endocytosis where solid materials, such as bacteria or cellular debris, are engulfed by a cell. This process involves the formation of a phagosome, which fuses with lysosomes to form a phagolysosome, where the engulfed material is broken down and digested. Phagocytosis is an important mechanism used by immune cells, such as macrophages and neutrophils, to eliminate pathogens and foreign particles from the body.

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  • 13. 

    Materials that are actively brought into the cell

    • Exocytosis

    • Endocytosis

    • Phagocytosis

    • Pinocytosis

    • Active Transport

    Correct Answer
    A. Endocytosis
    Explanation
    Endocytosis is the process by which materials are actively brought into the cell. It involves the formation of a vesicle that surrounds and engulfs the material, bringing it into the cell. This process is important for the uptake of nutrients, signaling molecules, and other substances that the cell needs for its function. Endocytosis can occur through different mechanisms, such as phagocytosis (engulfment of solid particles) and pinocytosis (engulfment of liquid or small particles). Overall, endocytosis plays a crucial role in regulating the entry of materials into the cell.

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  • 14. 

    When some substances can pass through them and others cannot, a biological(cell) membrane is said to be

    Correct Answer
    semi-permeable
    Explanation
    A biological (cell) membrane is said to be semi-permeable when it allows certain substances to pass through while blocking others. This selective permeability is crucial for maintaining the internal environment of the cell and regulating the movement of molecules in and out of the cell. The membrane achieves this through various mechanisms such as protein channels and transporters that control the passage of specific molecules based on size, charge, or other factors. This property is essential for processes like nutrient uptake, waste removal, and cell signaling.

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  • 15. 

    When a human red blood cell is placed in a hypotonic environment, it will

    • Shrink

    • Be at equilibrium

    • Swell

    • Burst

    Correct Answer
    A. Burst
    Explanation
    When a human red blood cell is placed in a hypotonic environment, water will move into the cell due to the lower concentration of solutes outside the cell. This causes the cell to swell as it takes in more water. However, if the swelling becomes too extreme, the cell membrane may not be able to withstand the pressure and will eventually burst, leading to the cell's destruction.

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  • 16. 

    What is required for osmosis to occur?

    Correct Answer
    A semi-permeable membrane
    Explanation
    Osmosis is the movement of solvent molecules from an area of lower solute concentration to an area of higher solute concentration through a semi-permeable membrane. A semi-permeable membrane is necessary for osmosis to occur because it allows the passage of solvent molecules while restricting the movement of solute molecules. This selective permeability enables the solvent molecules to move across the membrane, equalizing the concentration on both sides. Without a semi-permeable membrane, there would be no separation between the solute and solvent, and osmosis would not be possible.

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  • 17. 

    What happens to the movement of molecules at equilibrium?

    Correct Answer
    Concentration of particles is equal inside the cell and in the solution
    Explanation
    At equilibrium, the movement of molecules reaches a state of balance. This means that the concentration of particles inside the cell is equal to the concentration of particles in the surrounding solution. This balance occurs when the rate of molecules moving into the cell is equal to the rate of molecules moving out of the cell. Therefore, the correct answer is that the concentration of particles is equal inside the cell and in the solution.

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  • 18. 

    In photosynthesis, plants convert light energy into chemical energy, storing it in the bonds of glucose molecules. This process primarily takes place in the chloroplasts, specifically within the __________.

    Correct Answer
    thylakoids, Thylakoids
    Explanation
    Thylakoids are membrane-bound compartments inside chloroplasts and are crucial for the light-dependent reactions of photosynthesis. They contain chlorophyll and other pigments that capture light energy, which is then used to generate ATP and NADPH. These energy-rich molecules are vital for the subsequent light-independent reactions (Calvin cycle) that synthesize glucose.

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  • 19. 

    What is the movement of particles from low concentration to high concentration? What is the concentration gradient, and is energy needed?If energy is needed, what kind of energy?

  • 20. 

    Explain Hypotonic

  • 21. 

    Explain Hypertonic

  • 22. 

    Explain Isotonic.

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  • Current Version
  • May 20, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 03, 2009
    Quiz Created by
    Soccerchic288
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