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Cellular structure and function - cell discovery and theroy

Q: What did Robert Hooke call the small, box-shaped structures he saw in cork?

Hooke called the small, box-shaped structures in the cork cellulae .

10 important questions on Cellular structure and function - cell discovery and theroy

What are the two categories of cells?

Scientists group cells into two broad categories based on their internal structures. These categories are prokaryotic cells and eukaryotic cells.

Who made a simple microscope in 1665 to look at a piece of cork?

In 1665, an English scientist named Robert Hooke made a simple microscope.

What is the second principle of the cell theory?

The cell is the basic unit of organization in living organisms. Even in complex organisms such as humans, the cell is the basic unit of life.

What did Robert Hooke call the small, box-shaped structures he saw in cork?

Hooke called the small, box-shaped structures in the cork cellulae.

What is the third principle of the cell theory?

All cells come from living cells. Cells pass copies of their genetic material on to their daughter cells. Cells contain hereditary information that passes from cell to cell during cell division.

Who was surprised to find living organisms in pond water, milk, and other substances in the late 1600s?

In the late 1600s, Anton van Leeuwenhoek, a Dutch scientist, was surprised to find living organisms in these substances.

What did Matthias Schleiden conclude about plants in 1838?

In 1838, German scientist Matthias Schleiden concluded that all plants are composed of cells.

What is a compound light microscope?

The modern compound light microscope uses a series of glass lenses to magnify, or enlarge, an object. When visible light passes through each lens, it magnifies the image of the previous lens. For example, two lenses that each magnify an image 10× result in a microscope that magnifies the object 100×, as shown in the figure below.