Biology of Cell: Microscopy and Cell Structure

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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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