18 Questions
Who discovered the nucleus in the cell?
Robert Brown
What was the significant improvement that led to the discovery of free-living cells in pond water?
Improvement in the microscope
What is the term coined by Purkinje in 1839?
Protoplasm
Who presented the cell theory that all living organisms are composed of cells?
Schleiden and Schwann
What is the term used to describe organisms that consist of a single cell?
Unicellular organisms
How do multi-cellular organisms arise from a single cell?
Through cell division
What is the purpose of using iodine solution or other staining solutions on cells?
To observe the cell structure more clearly
What is the function of the pores in the nuclear membrane?
To allow material transfer between the nucleus and cytoplasm
What is the shape of the cells observed from the cheek?
Oval or spherical
What is the purpose of using a cover-slip in microscopy?
To flatten the sample and prevent it from moving
What is the name of the structure found near the centre of each cell?
Nucleus
What tool is used to transfer the material from the cheek to the glass slide?
Needle
What is the origin of the substance Robert Hooke observed under his self-designed microscope?
Bark of a tree
What is the Latin word for 'a little room' that is used to describe the units observed by Robert Hooke?
Cell
What is the purpose of placing the onion peel in a watch-glass containing water?
To prevent the peel from getting folded or dry
What instrument did Robert Hooke use to observe the structure of the cork?
Self-designed microscope
In what year did Robert Hooke make the observation that living things appear to consist of separate units?
1665
What is the purpose of putting a drop of water on the glass slide?
To transfer the peel to the slide
Test your knowledge of the history of cell discovery and structure, from Robert Hooke to Robert Brown. Learn about the key milestones and scientists who contributed to our understanding of cells.
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