7 Science Cells Quiz

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    A microscope with a 10x eyepiece and a 4x objective lens would have a magnification of...

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7 Science Cells Quiz - Quiz
About This Quiz

This '7 Science CELLS quiz' assesses knowledge on cell theory, differences between plant and animal cells, and cellular components like organelles. It is designed to enhance understanding of fundamental cell biology concepts, suitable for educational purposes.

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  • 2. 

    Some types of bacteria help keep us alive and healthy, while other types can make us sick.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is stating a fact that some types of bacteria are beneficial to our health, while others can cause illness. This implies that there are different types of bacteria with different effects on our well-being. Therefore, the statement is true.

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  • 3. 

    The nucleus is the cell's control centre and contains the DNA.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The explanation for the given correct answer is that the nucleus is indeed the cell's control centre and it contains the DNA. The nucleus is a membrane-bound organelle found in eukaryotic cells and it houses the genetic material of the cell, which is the DNA. The DNA contains the instructions for the cell's growth, development, and functioning. The nucleus also regulates the activities of the cell by controlling gene expression and protein synthesis. Therefore, it can be concluded that the statement is true.

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  • 4. 

    Vacuoles, Mitochondria, Cell membrane, Cytoplasm, Nucleus.  are types of organelles, the parts that make up a cell.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The given statement is true because vacuoles, mitochondria, cell membrane, cytoplasm, and nucleus are all examples of organelles. Organelles are specialized structures within a cell that perform specific functions, such as storing materials, producing energy, controlling what enters and exits the cell, and containing the genetic information. These organelles work together to carry out the various processes necessary for the cell's survival and function. Therefore, the statement is correct.

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  • 5. 

    The cell membrane is the skin or outer layer of a cell and controls what gets in and what gets out.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because the cell membrane acts as a selectively permeable barrier, allowing certain substances to enter or leave the cell while restricting others. It is composed of a phospholipid bilayer with embedded proteins that regulate the movement of molecules and ions. This control over the flow of materials is essential for maintaining the cell's internal environment and carrying out various cellular processes.

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  • 6. 

    Unicellular organisms are living creatures made of only one cell. Uni means 1

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Unicellular organisms are indeed living creatures made up of only one cell. The prefix "uni" means one, so when we say "unicellular," we are referring to organisms that consist of a single cell. This is in contrast to multicellular organisms, which are made up of multiple cells. Therefore, the statement is true.

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  • 7. 

    Select the correct phrase that finishes the sentence Cytoplasm is...

    • The control centre of the cell

    • A fluid inside the cell

    Correct Answer
    A. A fluid inside the cell
    Explanation
    Cytoplasm is a fluid inside the cell. The cytoplasm is a gel-like substance that fills the cell and surrounds the organelles. It is composed of water, salts, and various organic molecules. The cytoplasm plays a crucial role in supporting and protecting the organelles within the cell, as well as facilitating various cellular processes such as metabolism and protein synthesis.

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  • 8. 

    Mitochondria are organelles that ...

    • Store water, nutrients, and waste

    • Produce energy for the cell to function

    Correct Answer
    A. Produce energy for the cell to function
    Explanation
    Mitochondria are organelles that produce energy for the cell to function. They are often referred to as the "powerhouses" of the cell because they generate adenosine triphosphate (ATP), which is the main source of energy for cellular activities. This energy production occurs through a process called cellular respiration, where nutrients such as glucose are broken down to release ATP. Without mitochondria, cells would not have the necessary energy to carry out essential functions and survival would be compromised.

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  • 9. 

    'Specialised' cell are...

    • Are found only in plants

    • Have a specific function in the body

    • Different to all other cells

    Correct Answer
    A. Have a specific function in the body
    Explanation
    Specialized cells are unique in that they have a specific function in the body. Unlike other cells, which may have a variety of functions, specialized cells are designed to perform a specific task or carry out a specific function. These cells have distinct structures and characteristics that enable them to perform their specialized functions efficiently.

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  • 10. 

    An example of a large, common, single cell is..

    • Your heart

    • An egg

    • An eyeball

    Correct Answer
    A. An egg
    Explanation
    An egg is an example of a large, common, single cell because it is a reproductive structure that contains all the necessary components to develop into a new organism. It is a single cell that is large enough to be visible to the naked eye and is commonly found in many animal species. The egg cell contains all the genetic information and nutrients needed for the development of the embryo, making it a prime example of a large, common, single cell.

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  • 11. 

    Two main differences between plant and animal cells are... (select 2)

    • Plant cells are bigger

    • Only animal cells contain organelles

    • Plant cells contain chlorophyl, animal cells don't

    • Plant cells have a double layer wall. (a cell membrane and cell wall)

    Correct Answer(s)
    A. Plant cells contain chlorophyl, animal cells don't
    A. Plant cells have a double layer wall. (a cell membrane and cell wall)
    Explanation
    The correct answer is "Plant cells contain chlorophyll, animal cells don't" and "Plant cells have a double layer wall (a cell membrane and cell wall)". These two statements highlight key differences between plant and animal cells. Chlorophyll is a pigment found in plant cells that allows them to perform photosynthesis, while animal cells do not have this pigment. The presence of a double layer wall in plant cells, consisting of both a cell membrane and a cell wall, provides additional structural support that is not present in animal cells.

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  • 12. 

    Organelles are...

    • Cells that make up the different organs in the human body

    • The parts of a cell

    Correct Answer
    A. The parts of a cell
    Explanation
    The answer "The parts of a cell" is correct because organelles are specialized structures within a cell that perform specific functions. They are like tiny organs within the cell, each with its own specific role in maintaining the cell's overall function and survival. Organelles include structures such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, and many others.

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  • 13. 

    Select all the check boxes below that are body systems.

    • Circulatory system (blood)

    • Respiratory system (breathing)

    • Nervous system (brain, nerves, touch)

    • Reproductive system (babies, birth, sex organs)

    • Excretory system (waste removal)

    Correct Answer(s)
    A. Circulatory system (blood)
    A. Respiratory system (breathing)
    A. Nervous system (brain, nerves, touch)
    A. Reproductive system (babies, birth, sex organs)
    A. Excretory system (waste removal)
    Explanation
    The correct answer includes all the body systems mentioned in the options. The circulatory system is responsible for transporting blood throughout the body. The respiratory system is involved in breathing and oxygen exchange. The nervous system consists of the brain, nerves, and is responsible for touch sensations. The reproductive system is involved in the production of babies, birth, and includes the sex organs. The excretory system is responsible for removing waste from the body.

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  • 14. 

    Which of the following are the 3 rules of Cell Theory?

    • All cells are the same

    • All cells are similar but not identical

    • Cells reproduce by joining with another cell to make 2

    • Cells reproduce by dividing in two

    • All living things are made of cells

    Correct Answer(s)
    A. All cells are similar but not identical
    A. Cells reproduce by dividing in two
    A. All living things are made of cells
    Explanation
    Cell Theory is a fundamental concept in biology that states three main rules. The first rule is that all living things are made of cells. This means that cells are the basic building blocks of life. The second rule is that all cells are similar but not identical. This means that while cells may have similarities in structure and function, they can also have variations. The third rule is that cells reproduce by dividing in two. This means that cells have the ability to replicate and create new cells through the process of cell division.

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  • 15. 

    The objective lens on a microscope is the ...

    • Top lens also known as the 'eyepiece'

    • The bottom lens closest to the specimen

    • The fine focusing knob

    Correct Answer
    A. The bottom lens closest to the specimen
    Explanation
    The correct answer is the bottom lens closest to the specimen. The objective lens is the lens that is closest to the specimen being observed on a microscope. It is responsible for gathering light from the specimen and forming an enlarged image that can be viewed through the eyepiece. The objective lens is typically a series of lenses with different magnification powers, allowing for different levels of magnification when observing the specimen.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 28, 2011
    Quiz Created by
    Ianv2011

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