Physics, 14.10.2019 01:30 giselabarajas24

Name the 5 scientists who contributed to what we now know about cells and explain their contributions.

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In biology, cell theory is a scientific theory which describes the properties of cells. These cells are the basic unit of structure in all organisms and also the basic unit of reproduction. With continual improvements made to microscopes over time, magnification technology advanced enough to discover cells in the 17th century. This discovery is largely attributed to Robert Hooke, and began the scientific study of cells, also known as cell biology. Over a century later, many debates about cells began amongst scientists. Most of these debates involved the nature of cellular regeneration, and the idea of cells as a fundamental unit of life. Cell theory was eventually formulated in 1839. This is usually credited to Matthias Schleiden and Theodor Schwann. However, many other scientists like Rudolf Virchow contributed to the theory. Cell theory has become the foundation of biology and is the most widely accepted explanation of the function of cells.

Answer from: efjdjskd

Robert Hooke, Antonie Philips van Leeuwenhoek, Matthias Schleiden, Theodor Schwann, Rudolph Virchow contribute in cell theory.

Further Explanation:

Cells are smallest component of matter that are living in nature .Cells are two types:

• Eukaryotic cell contain nucleus.

• Prokaryotic cell doesn’t contain nucleus.

Cell theory explains the cell properties. Cell theory given by:

• Robert Hooke- He is the first person who identifies cells.

• Antonie Philips van Leeuwenhoek (1632-1723) – He help in visualizing cells, make better lens which provide better visualization.

• Matthias Schleiden (1804–1881) – He is the first person who discovers that plants are also made up of cells.

• Theodor Schwann (1810-1822) – He describe that living things are composed of cells.

• Rudolph Virchow (1821–1902) – He discovered that every cell arises from other cell.

Cell Theory mainly states that:

• All living organisms are made up of cells.

• They can be multicellular or unicellular. The cell is the smallest unit of life.

• Cells derived from pre-existing cells.

Learn more:

1. Learn more about carbohydrate monomer

2. Learn more about composition of protein

3. Learn more about structure of fatty acid

Answer Details:

Grade: High School

Subject: Health

Chapter: Cells

Keywords:

Rudolph Virchow, theodor Schwann, multicellular, unicellular, life, unit, pre-existing cells, visualization, cell theory.

Answer from: Quest

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

Answer from: Quest

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6

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