Podcast
Questions and Answers
What is the reason electrons are used in microscopy instead of light waves?
What is the reason electrons are used in microscopy instead of light waves?
- Electrons have a larger wavelength than light waves
- Electrons have a similar wavelength to light waves
- Electrons have a smaller wavelength than light waves (correct)
- Electrons have a different property than light waves
What is the primary difference between scanning electron microscopes and transmission electron microscopes?
What is the primary difference between scanning electron microscopes and transmission electron microscopes?
- Type of image produced (correct)
- Cost of the microscope
- Magnification power
- Sample preparation
What is the maximum magnification power of an electron microscope?
What is the maximum magnification power of an electron microscope?
- x5,000,000
- x1,000,000
- x2,000,000 (correct)
- x100,000
What is the formula to calculate the size of an object using a microscope?
What is the formula to calculate the size of an object using a microscope?
What is the purpose of using standard form in microscopy calculations?
What is the purpose of using standard form in microscopy calculations?
Why do scientists need to culture microorganisms in the lab?
Why do scientists need to culture microorganisms in the lab?
What is the purpose of mixing the bacterial suspension with sterile nutrient broth?
What is the purpose of mixing the bacterial suspension with sterile nutrient broth?
What is the function of agar in a Petri dish?
What is the function of agar in a Petri dish?
Why are Petri dishes and culture media sterilized before use?
Why are Petri dishes and culture media sterilized before use?
What is the purpose of incubating the agar plate?
What is the purpose of incubating the agar plate?
What is the function of wire loops called inoculating loops?
What is the function of wire loops called inoculating loops?
What is the purpose of stoppering the flask with cotton wool?
What is the purpose of stoppering the flask with cotton wool?
What type of cell retains the ability to differentiate throughout its life?
What type of cell retains the ability to differentiate throughout its life?
What is the function of the acrosome in sperm cells?
What is the function of the acrosome in sperm cells?
What is the direction of water movement in a concentrated sugar solution?
What is the direction of water movement in a concentrated sugar solution?
What happens to an animal cell when placed in a hypotonic solution?
What happens to an animal cell when placed in a hypotonic solution?
What is the shape of the DNA in bacterial cells?
What is the shape of the DNA in bacterial cells?
What is the term for a solution with the same concentration of sugar as the cell?
What is the term for a solution with the same concentration of sugar as the cell?
What is the process called when cells gain new sub-cellular structures to suit their role?
What is the process called when cells gain new sub-cellular structures to suit their role?
What is the purpose of a partially permeable membrane bag model?
What is the purpose of a partially permeable membrane bag model?
What is the main function of mitochondria in sperm cells?
What is the main function of mitochondria in sperm cells?
What is the main component of the bacterial cell wall?
What is the main component of the bacterial cell wall?
What term describes a solution with a higher concentration of sugar than the cell?
What term describes a solution with a higher concentration of sugar than the cell?
What is the energy requirement for osmosis?
What is the energy requirement for osmosis?
During which stage of cell division do chromosomes line up at the equator of the cell?
During which stage of cell division do chromosomes line up at the equator of the cell?
What is the main function of mitosis in multicellular organisms?
What is the main function of mitosis in multicellular organisms?
What type of reproduction involves the production of offspring through mitosis?
What type of reproduction involves the production of offspring through mitosis?
What is the characteristic shape of replicated DNA during Interphase?
What is the characteristic shape of replicated DNA during Interphase?
What is the result of Cytokinesis?
What is the result of Cytokinesis?
What is a characteristic of stem cells?
What is a characteristic of stem cells?
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