Biology Trivia Quiz On Cell Membrane

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| By Manic19oo
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  • 1/20 Questions

    What is active transport and what does it involve??

    • Involves the expenditure of energy to move substances against their concentration gradient
    • Tech n9ne
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About This Quiz

The is the terms as the building block of the human body, and they have outer coverings known as membranes that separate the interior parts of the cells from the outside one. It is through this membrane that lets some molecules in and out of the cell. Get to review chapter five from your raven biology on the cell membrane by taking up this test.

Biology Trivia Quiz On Cell Membrane - Quiz

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  • 2. 

    How do carriers facilitate movement?

    • Physically binding molecules on one side of the membrane, and releasing them on the other.

    • Tech n9ne

    Correct Answer
    A. Physically binding molecules on one side of the membrane, and releasing them on the other.
    Explanation
    Carriers facilitate movement by physically binding molecules on one side of the membrane and releasing them on the other. This process allows for the transportation of molecules across the membrane, enabling movement from one side to the other.

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  • 3. 

    What is the tendencies of a molecule to go from a region of lower concentration to a higher one?

    • Osmosis

    • Tech n9ne

    Correct Answer
    A. Osmosis
    Explanation
    Osmosis is the process in which molecules move from a region of lower concentration to a higher concentration. This occurs through a semipermeable membrane, allowing only certain molecules to pass through. The tendency for molecules to move in this way is driven by the goal of achieving equilibrium, where the concentration is equal on both sides of the membrane. Therefore, the correct answer is osmosis.

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  • 4. 

    What is exocytosis?

    • Enveloping food

    • Material taken in is in particulate form.

    • Material taken in is in liquid form.

    • Discharge of materials from vesicles at the cell surface.

    Correct Answer
    A. Discharge of materials from vesicles at the cell surface.
    Explanation
    Exocytosis is the process by which materials are released from vesicles at the cell surface. This means that the materials stored inside vesicles, such as hormones or neurotransmitters, are transported to the cell membrane and then released outside the cell. This process is important for various cellular functions, including cell signaling and communication.

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  • 5. 

    What is Isomatic?

    • Soluton with the higher solute concentration.

    • Soluton with the lower solute concentration.

    • Solutons are equal.

    Correct Answer
    A. Solutons are equal.
    Explanation
    The correct answer is "Solutons are equal." This means that Isomatic refers to solutions that have the same solute concentration. In other words, the concentration of solutes in both solutions is the same, indicating that they have an equal amount of dissolved substances.

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  • 6. 

    What is receptor-mediated?

    • Material taken in is in liquid form.

    • Discharge of materials from vesicles at the cell surface.

    • Transport of speficic molecules.

    • Enveloping food

    Correct Answer
    A. Transport of speficic molecules.
    Explanation
    Receptor-mediated refers to a process in which specific molecules are transported into a cell. This process involves the binding of molecules to specific receptors on the cell surface, which then triggers internalization and transport of the molecules into the cell. This mechanism allows cells to selectively take up certain molecules and is important for various physiological processes such as nutrient uptake, hormone signaling, and immune responses.

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  • 7. 

    Which way do polar heads tend to orient?

    • Toward the water

    • Away from the water

    • Surface

    • Tech n9ne

    Correct Answer
    A. Toward the water
    Explanation
    Polar heads tend to orient toward the water because they are hydrophilic, meaning they have an affinity for water. This is due to the polar nature of the molecule, with one end being positively charged and the other end being negatively charged. The positive end is attracted to the negative oxygen atoms in water molecules, while the negative end is attracted to the positive hydrogen atoms in water molecules. This orientation allows for the formation of hydrogen bonds between the polar heads and water molecules, promoting solubility and interaction with water.

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  • 8. 

    Diffusion is:

    • The adding of a water molecule to an atom.

    • The removing of a water molecule to an atom.

    • The net movement of substances to go from regions of high concentration to low concentration.

    • The net movement of substances to go from regions of low concentration to high concentration.

    Correct Answer
    A. The net movement of substances to go from regions of high concentration to low concentration.
    Explanation
    Diffusion is the process by which substances move from an area of high concentration to an area of low concentration. This movement occurs due to the random motion of particles, and it continues until equilibrium is reached. Therefore, the correct answer is "The net movement of substances to go from regions of high concentration to low concentration."

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  • 9. 

    What transports ions and other solutes across the plasma membrane?

    • Carriers

    • Folder Proteins

    • Chaperone proteins

    • Wat

    Correct Answer
    A. Carriers
    Explanation
    Carriers are proteins that transport ions and other solutes across the plasma membrane. These proteins bind to specific molecules and undergo a conformational change to transport them across the membrane. This process is essential for maintaining the balance of ions and molecules inside and outside the cell, allowing for proper cellular function and communication.

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  • 10. 

    Which of the following is a component of the cell membrane?

    • Phosopholipid bilayer

    • Transmembrane proteins

    • Golgi apparatus

    • Ribosomes

    • Nucleus

    Correct Answer
    A. Phosopholipid bilayer
    Explanation
    The cell membrane is composed of a phospholipid bilayer, which is a double layer of phospholipids. These phospholipids have a hydrophilic (water-loving) head and a hydrophobic (water-fearing) tail. The hydrophilic heads face outward towards the watery environment both inside and outside the cell, while the hydrophobic tails face inward, creating a barrier that separates the cell's internal environment from the external environment. This phospholipid bilayer is a crucial component of the cell membrane, providing structural integrity and regulating the movement of molecules in and out of the cell. Transmembrane proteins are also present in the cell membrane, but they are not the primary component.

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  • 11. 

    What is pinocytosis?

    • Discharge of materials from vesicles at the cell surface.

    • Material taken in is in liquid form.

    • Material taken in is in particulate form.

    • Enveloping food

    Correct Answer
    A. Material taken in is in liquid form.
    Explanation
    Pinocytosis is a type of endocytosis where the cell takes in extracellular fluid and solutes by engulfing them in small vesicles. It is a non-selective process that occurs in response to the cell's need for nutrients or to regulate the composition of the extracellular fluid. Unlike phagocytosis which involves the engulfment of larger solid particles, pinocytosis specifically refers to the uptake of liquid material by the cell. Therefore, the correct answer is "Material taken in is in liquid form."

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  • 12. 

    What is the plasma membrane composed of?

    • Ribosones and lipids

    • Nucliec acids and lipids

    • Nuclues and mondocondria

    • Lipids and globular proteins.

    Correct Answer
    A. Lipids and globular proteins.
    Explanation
    The plasma membrane is composed of lipids and globular proteins. Lipids, such as phospholipids, form a bilayer structure that makes up the majority of the membrane. These lipids provide a barrier that separates the inside of the cell from the external environment. The globular proteins are embedded within the lipid bilayer and have various functions, including transport of molecules across the membrane, cell signaling, and structural support. Together, the lipids and globular proteins make up the plasma membrane, which is essential for maintaining the integrity and functionality of the cell.

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  • 13. 

    Which of the following are membrane transport proteins?

    • Transporters, attachments to cytoskeleton

    • Enzymes

    • Cell surface idenitity markers.

    • Cell adhesion proteins

    • All of the above.

    Correct Answer
    A. All of the above.
    Explanation
    All of the options mentioned in the question are membrane transport proteins. Transporters are proteins that facilitate the movement of molecules across the cell membrane. Attachments to cytoskeleton help in maintaining the structural integrity of the cell membrane and are involved in intracellular transport processes. Enzymes located in the cell membrane are involved in various metabolic reactions. Cell surface identity markers are proteins that help in cell recognition and communication. Cell adhesion proteins are responsible for binding cells together. Hence, all of these options are examples of membrane transport proteins.

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  • 14. 

    Ions can move between the cytoplasm of a cell and the extracellular fluid without the assistance of membrane transport proteins.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because ions cannot move between the cytoplasm of a cell and the extracellular fluid without the assistance of membrane transport proteins. Membrane transport proteins, such as ion channels and ion pumps, are necessary for the movement of ions across the cell membrane. These proteins facilitate the transport of ions by creating specific pathways or using energy to move ions against their concentration gradient. Without these proteins, ions would not be able to cross the cell membrane and move between the cytoplasm and extracellular fluid.

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  • 15. 

    What is phagacytosis?

    • Enveloping food

    • Material taken in is in particulate form.

    • Material taken in is in liquid form.

    • Discharge of materials from vesicles at the cell surface.

    Correct Answer
    A. Material taken in is in particulate form.
    Explanation
    Phagocytosis is a process in which cells engulf and ingest solid particles, such as bacteria or cellular debris. It is a form of endocytosis, where the cell membrane surrounds the particle and forms a vesicle called a phagosome. This phagosome then fuses with lysosomes, which contain digestive enzymes, to break down the ingested material. Therefore, the correct answer is "Material taken in is in particulate form."

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  • 16. 

    The membrane protein structure is: multiple-pass anchors, single pass chanels and carries, and pores.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because the correct structure of a membrane protein includes multiple-pass anchors, single-pass channels and carriers, and pores.

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  • 17. 

    Why is the bi-layer stable?

    • Water's afinity for hydrogen bonding never stops.

    • Hydrogen's afinity for water bonding never stops.

    • The amount of water and hydrogen are equal.

    • The sharing of electrons.

    Correct Answer
    A. Water's afinity for hydrogen bonding never stops.
    Explanation
    Water's affinity for hydrogen bonding never stops because water molecules are polar, with a partially positive hydrogen atom and a partially negative oxygen atom. This polarity allows water molecules to form hydrogen bonds with each other, creating a stable network. These hydrogen bonds are constantly forming and breaking, but they never completely cease. This constant formation and breaking of hydrogen bonds contribute to the stability of the water molecule and the stability of the bi-layer.

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  • 18. 

    Cell transport channels are selectively permeable. How so?

    • Only certain molecules can enter, but are not released.

    • Only certain molecules can exit and are released.

    • Only certain molecules can enter and exit.

    • Only certain molecules can enter.

    Correct Answer
    A. Only certain molecules can enter.
    Explanation
    Cell transport channels are selectively permeable, meaning they allow only certain molecules to enter. This is important for maintaining the balance and homeostasis within the cell. By controlling what molecules can enter, the cell can regulate its internal environment and prevent harmful substances from entering. This selective permeability ensures that only necessary molecules, such as nutrients and ions, can enter the cell while keeping out unwanted substances.

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  • 19. 

    What is endocytosis?

    • Discharge of materials from vesicles at the cell surface.

    • Material taken in is in liquid form.

    • Material taken in is in particulate form.

    • Enveloping food

    Correct Answer
    A. Enveloping food
    Explanation
    Endocytosis is a cellular process in which the cell engulfs external materials by forming a vesicle around them. This allows the cell to take in various substances, including nutrients and molecules, from the extracellular environment. In the case of enveloping food, endocytosis refers to the process by which the cell engulfs solid particles of food, allowing them to be transported into the cell for digestion and nutrient absorption.

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  • 20. 

    To which of the following are hyposmotic solutions?

    • Extrusion

    • Turgor

    • Isomotic solutions

    • Osmotic solutions

    • None of the above.

    Correct Answer(s)
    A. Extrusion
    A. Turgor
    A. Isomotic solutions
    Explanation
    Hyposmotic solutions refer to solutions with a lower solute concentration compared to another solution. Extrusion, turgor, and isomotic solutions can all be considered hyposmotic because they have a lower solute concentration. Extrusion refers to the process of pushing something out, turgor refers to the pressure exerted by fluid inside a cell, and isomotic solutions have the same solute concentration as another solution. Therefore, all three options are correct answers for the question.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 06, 2008
    Quiz Created by
    Manic19oo
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