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Biology 1001 - Lab Midterm Questions and Answers | 2024/2025 | Rated A+ £7.49   Add to cart
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Biology 1001 - Lab Midterm Questions and Answers | 2024/2025 | Rated A+
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Biology 1001 - Lab Midterm Questions and Answers | 2024/2025 | Rated A+ What is the purpose of using a microscope in a biology lab? A microscope is used to observe and analyze specimens that are too small to be seen with the naked eye. How do you properly prepare a wet mount slide? ...

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  • August 30, 2024
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  • 2024/2025
  • Exam (elaborations)
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Biology 1001 - Lab Midterm Questions
and Answers | 2024/2025 | Rated A+

What is the purpose of using a microscope in a biology lab?




✔✔ A microscope is used to observe and analyze specimens that are too small to be seen with

the naked eye.




How do you properly prepare a wet mount slide?




✔✔ Place a small drop of the specimen on the slide, gently place a cover slip over it at an angle,

and then examine under the microscope.




What is the significance of staining in microscopy?




✔✔ Staining enhances contrast between different cellular components, making them more

visible under the microscope.




How can you differentiate between plant and animal cells under a microscope?


1

, ✔✔ Plant cells have a cell wall and chloroplasts, while animal cells do not have a cell wall and

have a more irregular shape.




What are the key steps in the gram staining procedure?




✔✔ The steps include applying a primary stain (crystal violet), a mordant (iodine), a decolorizer

(alcohol or acetone), and a counterstain (safranin).




What is the role of the cell membrane in cellular transport?




✔✔ The cell membrane regulates the movement of substances in and out of the cell, allowing

selective permeability.




How do you measure the size of cells or organisms using a microscope?




✔✔ Measure the field of view at different magnifications and use it to estimate the size of the

cells or organisms based on their proportion within the field.




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