COPY: Biology Study Notes on Microscopes
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Questions and Answers

What is the primary product of photosynthesis?

  • Water
  • Oxygen
  • Carbon dioxide
  • Glucose (correct)

    • Nearly all living things on Earth perform photosynthesis.

    False

    What process do living things use to release the energy stored in glucose?

    Cellular respiration

    Photosynthesis can be summarized by the equation: light energy + carbon dioxide + water → _____ + oxygen.

    <p>glucose</p> Signup and view all the answers

    Which of the following is a substance used in cellular respiration?

    <p>Oxygen</p> Signup and view all the answers

    Match the following processes with their primary purpose:

    <p>Photosynthesis = Produces oxygen Cellular Respiration = Uses oxygen to break down glucose</p> Signup and view all the answers

    Photosynthesis produces carbon dioxide as a byproduct.

    <p>False</p> Signup and view all the answers

    Which energy transformation occurs during photosynthesis?

    <p>Light energy to chemical energy</p> Signup and view all the answers

    What is considered the basic functional unit of life?

    <p>Cell</p> Signup and view all the answers

    All living things consist of only single-celled organisms.

    <p>False</p> Signup and view all the answers

    What do unicellular organisms need for survival?

    <p>They are able to meet their own needs for survival.</p> Signup and view all the answers

    ___ are organisms that consist of only one cell.

    <p>Unicellular organisms</p> Signup and view all the answers

    Match the following types of organisms with their characteristics:

    <p>Paramecium = Single-celled organism Turtle = Multi-celled organism Bacteria = Decomposers that recycle nutrients Fungi = Used in the food industry</p> Signup and view all the answers

    What is the role of many unicellular fungi and bacteria?

    <p>Decomposition</p> Signup and view all the answers

    Cells can arise from nothing and nowhere.

    <p>False</p> Signup and view all the answers

    Life processes include obtaining energy, breaking down nutrients, and ___ wastes.

    <p>excreting</p> Signup and view all the answers

    Where does photosynthesis occur?

    <p>Chloroplast</p> Signup and view all the answers

    Ribosomes are responsible for storing water in plant and animal cells.

    <p>False</p> Signup and view all the answers

    What part of the cell is often referred to as 'the brain of the cell'?

    <p>nucleus</p> Signup and view all the answers

    A rigid layer that lies outside the cell's membrane is a _____

    <p>cell wall</p> Signup and view all the answers

    Match the following cell structures with their functions:

    <p>Ribosome = Makes proteins Mitochondria = Produces energy Chloroplast = Site of photosynthesis Vacuole = Stores water</p> Signup and view all the answers

    Which organelle is responsible for turning food into energy for plant and animal cells?

    <p>Mitochondria</p> Signup and view all the answers

    Eukaryotic cells do not contain membrane-bound organelles.

    <p>False</p> Signup and view all the answers

    What are the two main types of cells?

    <p>Prokaryotes and Eukaryotes</p> Signup and view all the answers

    What is the total magnification when using a 10× eyepiece and a 40× objective lens?

    <p>400×</p> Signup and view all the answers

    The coarse-adjustment knob can be used at all power levels of the microscope.

    <p>False</p> Signup and view all the answers

    What should you do when carrying a microscope?

    <p>Use two hands, one under the base and one on the arm.</p> Signup and view all the answers

    The area seen through the eyepiece of a microscope is called the __________.

    <p>field of view</p> Signup and view all the answers

    What happens to the diameter of the field of view when using more powerful lenses?

    <p>It decreases.</p> Signup and view all the answers

    Match the microscope components with their functions:

    <p>Eyepiece = Magnifies the image Objective lens = Provides varying levels of magnification Coarse adjustment knob = Used for low-power focus Fine adjustment knob = Used for high-power focus</p> Signup and view all the answers

    It is safe to store a microscope with the high-power objective lens in place.

    <p>False</p> Signup and view all the answers

    What should be done with the power cord when returning the microscope to its storage area?

    <p>Coil the power cord neatly around the arm of the microscope.</p> Signup and view all the answers

    What is the primary function of the cell membrane?

    <p>Support and selective permeability</p> Signup and view all the answers

    All eukaryotic cells have the same organelles.

    <p>False</p> Signup and view all the answers

    What is contained within the nucleus of a cell?

    <p>Genetic information</p> Signup and view all the answers

    The ______ is responsible for chemical reactions and helps in moving organelles around the cell.

    <p>cytoplasm</p> Signup and view all the answers

    Match the following organelles to their functions:

    <p>Nucleus = Stores genetic information Cell membrane = Regulates entry and exit of substances Cytoplasm = Site of chemical reactions Organelles = Specialized functions within the cell</p> Signup and view all the answers

    Which of the following statements is true about the cell membrane?

    <p>It is semi-permeable, allowing certain substances to pass.</p> Signup and view all the answers

    The cytoplasm is mainly composed of solid substances.

    <p>False</p> Signup and view all the answers

    What role do organelles play in a eukaryotic cell?

    <p>They perform specific functions necessary for the cell's life.</p> Signup and view all the answers

    Which of the following is a characteristic of prokaryotic cells?

    <p>They are smaller and less complex</p> Signup and view all the answers

    Eukaryotic cells contain genetic material within a nucleus.

    <p>True</p> Signup and view all the answers

    What is a key difference between prokaryotic and eukaryotic cells?

    <p>Prokaryotic cells lack a nucleus, while eukaryotic cells have a nucleus.</p> Signup and view all the answers

    Prokaryotic cells have __________ internal structures than eukaryotic cells.

    <p>fewer</p> Signup and view all the answers

    Match the following characteristics with the appropriate type of cell:

    <p>Has a nucleus = Eukaryotic Cell Lacks a true membrane-bound nucleus = Prokaryotic Cell Example includes liver cell of an animal = Eukaryotic Cell Smaller and less complex = Prokaryotic Cell</p> Signup and view all the answers

    Which of the following statements is true about eukaryotic cells?

    <p>They can carry out all processes needed to stay alive.</p> Signup and view all the answers

    Bacteria are an example of eukaryotic cells.

    <p>False</p> Signup and view all the answers

    How would you describe the size and complexity of eukaryotic cells compared to prokaryotic cells?

    <p>Eukaryotic cells are about 10 times larger and more complex than prokaryotic cells.</p> Signup and view all the answers

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