Science Quiz: Organelles + Cellular Transport

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  • 1/30 Questions

    What is the defnition of a semi-permeable membrane?

    • Membrane that lets everything pass through
    • Membrane that doesn't let anything through
    • Membrane that lets only certain things through
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About This Quiz

This Science Quiz focuses on organelles and cellular transport mechanisms, assessing understanding of passive transport, facilitated diffusion, and properties of semi-permeable membranes. It's designed to test knowledge on how substances move across cell membranes and achieve equilibrium.

Cell Biology Quizzes & Trivia

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  • 2. 

    Why does diffusion occur from high to lower concentration?

    • Substances are trying to reach equilibrium

    • Substances want one side to have more than the other

    • Substances get lonely and want to be next to other substances

    Correct Answer
    A. Substances are trying to reach equilibrium
    Explanation
    remember that substances move from an area where there is a lot of stuff (high concentration) to an area where there isn't very much stuff (lower concentration) in order to get the two sides equal aka EQUILIBRUIM

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  • 3. 

    What is the main purpose of ribosomes?

    • Make DNA

    • Make proteins

    • Transport lipids inside a cell

    • Look cool on the rough ER

    Correct Answer
    A. Make proteins
    Explanation
    Ribosomes are responsible for the synthesis of proteins in a cell. They are involved in the process of translation, where the genetic information encoded in the DNA is used to produce proteins. Ribosomes read the mRNA (messenger RNA) and assemble amino acids in the correct order to form a polypeptide chain, which then folds into a functional protein. This process is essential for the functioning and survival of cells, as proteins play crucial roles in various cellular processes and functions. Therefore, the main purpose of ribosomes is to make proteins.

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  • 4. 

    In osmosis, water moves from an area of higher concentration.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    this can be tricky...if something has a high concentration, that means there are lots of substances floating around. however, there is LESS water. think about gatorade. If you add a bunch of water to it then it becomes diluted aka LESS CONCENTRATED. if you were to add extra salt and sugar to it, then it would be MORE CONCENTRATED. so if something is more concentrated, then there is less water. so water is going to move to areas that have a high concentration because there is less water on that side and its trying to reach equilibirum.

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  • 5. 

    In passive transport, substances move from an area of ______ concentration to ________ concentration.

    • Lower; higher

    • Lower; lower

    • Higher; lower

    • Higher; higher

    Correct Answer
    A. Higher; lower
    Explanation
    MEMORIZE THIS!!!

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  • 6. 

    Passive transport requires ATP

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Passive transport DOES NOT require ATP/energy. That is the main definition of passive transport (transport of substances across a cell membrane WITHOUT energy)

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  • 7. 

    Eukaryotes don't have a nucleus

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Prokaryotes = no nucleus

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  • 8. 

    The cell membrane is also called a __________ bilayer

    Correct Answer
    phospholipid
    Explanation
    The cell membrane is composed of a phospholipid bilayer. Phospholipids are a type of lipid molecule that have a hydrophilic (water-loving) head and hydrophobic (water-fearing) tails. In the cell membrane, these phospholipids arrange themselves in a double layer, with their hydrophilic heads facing outward towards the watery environment both inside and outside of the cell, and their hydrophobic tails facing inward, creating a barrier that separates the cell's internal contents from the external environment. This structure is essential for maintaining the integrity and function of the cell membrane.

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  • 9. 

    What is the purpose of vacuoles?

    • Act as cushions for organelles

    • Transport organelles within a cell

    • Trap bacteria for removal

    • Store/transport nutrients within a cell

    Correct Answer
    A. Store/transport nutrients within a cell
    Explanation
    Vacuoles are responsible for storing and transporting nutrients within a cell. They act as storage compartments, holding various molecules such as sugars, ions, and water. Vacuoles also play a role in maintaining the cell's turgor pressure, which is important for its structural integrity. Additionally, vacuoles can aid in the detoxification process by storing harmful substances. Therefore, the main purpose of vacuoles is to store and transport nutrients essential for the cell's survival and functioning.

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  • 10. 

    If you have a jar of water with a divider right in the middle so that there are 2 equal sides...if you add a bunch of salt to the right side, then the LEFT side will be ________ compared to the right side.

    Correct Answer
    hypotonic
    Explanation
    if there are less solutes/substances on one side, then that side with less is hypotonic.

    solutes = things that are dissolved in a liquid

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  • 11. 

    Vicrhow came up with the idea that all cells are derived from parent cells

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement "Vicrhow came up with the idea that all cells are derived from parent cells" is true. This suggests that Vicrhow proposed the concept that all cells originate from pre-existing cells. This idea is consistent with the widely accepted theory of cell theory, which states that cells are the fundamental units of life and that all cells arise from pre-existing cells through cell division.

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  • 12. 

    Check ALL of things found inside the nucleus

    • Endoplasmic reticulum

    • DNA

    • Nucleolus

    • Golgi apparatus

    Correct Answer(s)
    A. DNA
    A. Nucleolus
    Explanation
    The question asks for things found inside the nucleus. The endoplasmic reticulum and Golgi apparatus are not found inside the nucleus, so they are not correct answers. However, DNA and the nucleolus are both found inside the nucleus, making them the correct answers.

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  • 13. 

    Which came first?

    • Prokaryotes

    • Eukaroytes

    Correct Answer
    A. Prokaryotes
    Explanation
    eukaroytes are much more complex so they came later

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  • 14. 

    A solution that is hypertonic has:

    • Relatively low solute concentration

    • Relatively equal solute concentration

    • Relatively high solute concentration

    Correct Answer
    A. Relatively high solute concentration
    Explanation
    HYPER = HIGH
    HYPO = LOW
    ISO = EQUAL

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  • 15. 

    Smooth endoplastic recticulum contains ribosomes

    • True

    • False

    Correct Answer
    A. False
    Explanation
    only the rough ER has ribosomes

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  • 16. 

    Faciliated diffusion causes substances to move from an area of lower concentration to higher concentration.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    In any type of diffusion, substances ALWAYS move from higher to lower concentration

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  • 17. 

    All eukaroytes have a cell wall

    • True

    • False

    Correct Answer
    A. False
    Explanation
    only PLANT cells have a cell wall
    -purpose is for support of the cell
    -made of cellulose + carbohydrates

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  • 18. 

    Which of the following is FALSE about lysosomes?

    • Contain digestive enzymes

    • Breakdown macromolecules

    • Found in plant cells

    • Found in animal cells

    Correct Answer
    A. Found in plant cells
    Explanation
    ONLY FOUND IN ANIMAL CELS

    remember, lyse = break open (so they are going to break big things into smaller things)

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  • 19. 

    Check ALL  things that are considered macromolecules.

    • Carbohydrates

    • Lipids

    • Proteins

    • Organelles

    • Nucleic acids

    • Bones

    Correct Answer(s)
    A. Carbohydrates
    A. Lipids
    A. Proteins
    A. Nucleic acids
    Explanation
    Macromolecules are large molecules that are essential for various biological processes. Carbohydrates, lipids, proteins, and nucleic acids are all considered macromolecules because they are composed of smaller subunits and have complex structures. Carbohydrates are made up of sugar molecules, lipids consist of fatty acids, proteins are composed of amino acids, and nucleic acids are made up of nucleotides. These macromolecules play crucial roles in energy storage, structural support, enzymatic reactions, and genetic information transfer. On the other hand, organelles and bones are not macromolecules but rather cellular structures and organs, respectively.

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  • 20. 

    Von Leeuwenhoek:

    • 1st microscopist

    • Saw cork cells and named them 'cells'

    • Decided that cells were the basic form of life

    • Named the nucleus

    Correct Answer
    A. 1st microscopist
    Explanation
    B) Hooke
    C) Dutrochet
    D) Brown

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  • 21. 

    Where does glycolysis occur?

    • Mitochondira

    • Cytoplasm

    • Nucleus

    Correct Answer
    A. Cytoplasm
    Explanation
    Glycolysis is the initial step in cellular respiration, where glucose is broken down into pyruvate molecules. This process occurs in the cytoplasm of the cell. The cytoplasm is the fluid-filled region outside the cell nucleus, where many metabolic reactions take place. In glycolysis, glucose is converted into two molecules of pyruvate, generating a small amount of ATP and NADH. These pyruvate molecules then enter the mitochondria for further processing in the citric acid cycle and oxidative phosphorylation.

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  • 22. 

    What is the ideal cell size?

    • 1 micron

    • 10 microns

    • 100 microns

    • 1000 microns

    Correct Answer
    A. 100 microns
    Explanation
    The ideal cell size is 100 microns. This size allows for efficient nutrient and waste exchange, as well as optimal cell division and growth. It provides enough space for cellular processes to occur while still maintaining a high surface area to volume ratio for effective exchange of materials with the environment. A size of 100 microns also allows for sufficient cell-cell communication and interaction, promoting the coordination and functioning of cells within tissues and organs.

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  • 23. 

    Chlorplasts do ___________ and mitochondria do ____________ in order to create energy.

    Correct Answer
    photosynthesis; cellular respiration
    Explanation
    Chloroplasts are responsible for carrying out photosynthesis, a process in which they convert sunlight, water, and carbon dioxide into glucose and oxygen. This glucose is then used as a source of energy for the cell. On the other hand, mitochondria are responsible for carrying out cellular respiration, a process in which glucose is broken down to release energy in the form of ATP. This process occurs in the presence of oxygen and produces carbon dioxide as a byproduct. Therefore, chloroplasts create energy through photosynthesis, while mitochondria create energy through cellular respiration.

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  • 24. 

    The _________ is the fluid stuff inside the cell and the ________ is the fluid + organelles of the cell

    Correct Answer
    cytosol; cytoplasm
    Explanation
    The cytosol refers to the fluid portion inside the cell, while the cytoplasm includes both the fluid and the organelles of the cell.

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  • 25. 

    ________ decided that all plants were composed of cells and ______ decided that all animals were composed of cells

    Correct Answer
    Shleiden; Schwann
    Explanation
    Shleiden and Schwann were both scientists who made significant contributions to the cell theory. Shleiden concluded that all plants were composed of cells, while Schwann concluded that all animals were composed of cells. Their independent research and findings led to the development of the cell theory, which states that all living organisms are composed of cells.

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  • 26. 

    What makes faciliated diffusion different from 'regular' diffusion?

  • 27. 

    Why is there an ideal cell size?

  • 28. 

    Describe the 3 important parts of the Cell Theory.

  • 29. 

    What is the Fluid Mosaic Model of cell membranes all about?

  • 30. 

    Why is the Golgi apparatus considered the 'ups shipping center' of the cell?

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 17, 2011
    Quiz Created by
    Tseemore
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