Cell Processes And Functions

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  • 1/12 Questions

    In a plant and animal cell, the control center of the cell is the ________.

    • Nucleus
    • Cytoplasm
    • Chloroplast
    • Golgi body
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Cell Processes And Functions - Quiz

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  • 2. 

    Identify the function of the chloroplast in aplant cell.

    • To direct the functions of the cell

    • To allow material to pass in and out of the cell

    • To make plants beautiful

    • To convert the sun’s energy into energy the cell can use

    Correct Answer
    A. To convert the sun’s energy into energy the cell can use
    Explanation
    The chloroplast is responsible for converting the sun's energy into energy that the cell can use. This process, known as photosynthesis, allows plants to produce glucose and oxygen by using sunlight, water, and carbon dioxide. The energy stored in glucose is then used by the cell for various functions such as growth, reproduction, and metabolism. Without chloroplasts, plants would not be able to produce their own food and survive.

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  • 3. 

    When water passes through the cell membranebecause of diffusion, it’s called...

    • Cellular respiration

    • Photosynthesis

    • Osmosis

    • Water treatment

    Correct Answer
    A. Osmosis
    Explanation
    Osmosis is the correct answer because it refers to the process of water passing through the cell membrane due to diffusion. In osmosis, water molecules move from an area of higher water concentration (dilute solution) to an area of lower water concentration (concentrated solution) across a semi-permeable membrane. This process is vital for maintaining the balance of water and solutes inside cells and is a fundamental mechanism for the transportation of water in living organisms. Cellular respiration, photosynthesis, and water treatment are unrelated processes and do not involve the specific movement of water through the cell membrane.

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  • 4. 

    Cells need the largest _______ possible inorder to absorb necessary materials and removewastes.

    • Car

    • Surface area

    • Body

    • Size

    Correct Answer
    A. Surface area
    Explanation
    Cells need the largest surface area possible in order to absorb necessary materials and remove wastes. A larger surface area allows for more efficient exchange of substances between the cell and its environment. This is because a larger surface area provides more space for molecules to enter and exit the cell, increasing the rate of diffusion. Additionally, a larger surface area allows for more transport proteins to be present on the cell membrane, further enhancing the cell's ability to transport necessary materials.

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  • 5. 

    What part of a cell is responsible fortransporting materials?

    • Endoplasmic reticulum

    • Nucleus

    • Mitochondria

    • Ribosomes

    Correct Answer
    A. Endoplasmic reticulum
    Explanation
    The endoplasmic reticulum is responsible for transporting materials within the cell. It is a network of membranes that extends throughout the cytoplasm of the cell. It plays a crucial role in the synthesis, folding, and transport of proteins, as well as the production of lipids. The endoplasmic reticulum has a rough appearance due to the presence of ribosomes on its surface, which are involved in protein synthesis. It also has a smooth region that is involved in lipid metabolism and detoxification. Overall, the endoplasmic reticulum is essential for the proper functioning and organization of the cell.

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  • 6. 

    What is not a phase of mitosis?

    • Interphase

    • Prophase

    • Megaphase

    • Telophase

    Correct Answer
    A. Megaphase
    Explanation
    The correct answer is "megaphase" because it is not a recognized phase of mitosis. The phases of mitosis include interphase, prophase, metaphase, anaphase, and telophase. Megaphase is not a term used in the context of mitosis, making it the incorrect option.

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  • 7. 

    During cellular respiration, the majority ofenergy that is released occurs in the cell’s_______.

    • Mitochondria

    • Nucleus

    • Ribosomes

    • Cytoplasm

    Correct Answer
    A. Mitochondria
    Explanation
    Cellular respiration is the process by which cells convert glucose and oxygen into energy, specifically ATP. The mitochondria are known as the powerhouses of the cell because they are responsible for generating most of the cell's energy through the process of oxidative phosphorylation. This occurs in the inner membrane of the mitochondria, where electrons from glucose are transported along the electron transport chain, leading to the production of ATP. Therefore, the majority of energy released during cellular respiration occurs in the cell's mitochondria.

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  • 8. 

    The organelle in which photosynthesis takes place is the __________.

    • Mitochondria

    • Chlorophyll

    • Chloroplast

    • Nucleus

    Correct Answer
    A. Chloroplast
    Explanation
    Photosynthesis is the process by which plants convert sunlight into energy. This process occurs in the chloroplasts, which contain the pigment chlorophyll. Chlorophyll absorbs light energy and uses it to convert carbon dioxide and water into glucose and oxygen. The mitochondria, nucleus, and chlorophyll are not directly involved in photosynthesis.

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  • 9. 

    The cell organelle in which proteins aremanufactured is called a(n) _______.

    • Endoplasmic reticulum

    • Golgi Body

    • Mitochondria

    • Ribosomes

    Correct Answer
    A. Ribosomes
    Explanation
    Ribosomes are the correct answer because they are the cell organelles responsible for protein synthesis. They are found in both prokaryotic and eukaryotic cells and can be free-floating in the cytoplasm or attached to the endoplasmic reticulum. Ribosomes read the genetic information in mRNA and use it to assemble amino acids into proteins through a process called translation. Therefore, ribosomes play a crucial role in the production of proteins within the cell.

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  • 10. 

    During what phase of mitosis does the cellcompletely divide into two new cells?

    • Prophase

    • Anaphase

    • Interphase

    • Telophase

    Correct Answer
    A. Telophase
    Explanation
    During telophase, the final phase of mitosis, the cell completely divides into two new cells. In this phase, the nuclear envelope reforms around the separated chromosomes at opposite ends of the cell, and the chromosomes begin to decondense. The cell then undergoes cytokinesis, where the cytoplasm divides, resulting in two separate daughter cells. Therefore, telophase is the correct answer as it is the specific phase in which the cell division is completed.

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  • 11. 

    When a cell takes in a particle by surroundingit, it’s called _______.

    • Diffusion

    • Exocytosis 

    • Endocytosis

    • Passive transport

    Correct Answer
    A. Endocytosis
    Explanation
    When a cell takes in a particle by surrounding it, the process is called endocytosis. In this process, the cell membrane wraps around the particle, forming a pocket that pinches off inside the cell as a vesicle. This method allows the cell to absorb nutrients, liquids, or other substances. Endocytosis includes types like phagocytosis (engulfing solid particles) and pinocytosis (taking in liquids). It's an active transport process that requires energy to move substances into the cell.

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  • 12. 

    In the final stage of cell division, the cellmembrane divides the _______ into two parts.

    • Cytoplasm

    • DNA

    • Daughter cell

    • Cell wall

    Correct Answer
    A. Cytoplasm
    Explanation
    During the final stage of cell division, known as cytokinesis, the cell membrane divides the cytoplasm into two parts. This process ensures that each resulting daughter cell receives an equal amount of cytoplasm, along with its organelles and other cellular components. The division of the cytoplasm is necessary for the formation of two separate and functional daughter cells.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 03, 2010
    Quiz Created by
    Mrmorrow
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