12 Questions
Who was the first to describe cells by examining a piece of cork through a microscope?
Robert Hooke
What is the ratio of the size of the image seen with the microscope to the actual size of the object?
Magnification
What is used to enhance the contrast when observing cells through a microscope?
Stains
Which staining method differentiates between cells?
Differential stains
What is the minimum distance between two points at which they can both be seen as two separate points called?
Resolution
Which scientist detected living cells, such as bacteria and protozoa, under the microscope?
Antonie van Leeuwenhoek
What is the primary difference between bright-field microscopy and dark-field microscopy?
The presence of an opaque plate in dark-field microscopy
Which type of microscope is suitable for studying the internal structure of cells?
Transmission electron microscope
What is the defining characteristic of prokaryotic cells?
Absence of membrane-bound organelles
What is the function of the inclusions found in prokaryotic cells?
DNA storage
Which component is present in bacterial cell walls but absent in Archae bacterial cell walls?
Peptidoglycan
What type of ribosomes are typically found in prokaryotic cells?
70S ribosomes
Explore the world of cells through the lens of microscopy with this lesson on the structure and functions of cell components. Learn about Robert Hooke's discovery of cells in cork and Antonie van Leeuwenhoek's observation of living cells.
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