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a. Robert Hooke - In 1662, he observed tiny compartments in the cork of a mature tree and gave them the Latin name cellulae (meaning small rooms). This was the origin of the biological term cell.
b. Anton Von Leeuwenhoek - By the late 1600s, he had observed diverse protistans, sperm, even a bacterium - an organism so small it would not be seen again for another two centuries.
c. R.J.H. Dutrochet - French botanist who prepared plant cells and studied them between 1824 and 1830. He discovered and named the phenomenon of osmosis, which is the passage of a liquid through a semi-permeable membrane. He was the first to carefully study respiration and light sensitivity in plants
d. Robert Brown - In 1827, he noticed the constant presence of an opaque spot in egg cells, pollen cells, and then cells of the growing tissues of orchid plants and called this spot protozoa in 1834.
e. Dujardin - He discovered one -celled animals called rhizopoda, now called protozoa in 1834.
f. Matthias Schlieden - In 1838, he suggested that the nucleus and cell development are closely related. He decided that each plant cell leads a double life - one independent, involving its development, the other as an integral part of the plant.
g. Theodor Schwann - In 1839, after years of studying the structure and growth of animal tissues, he concluded that animals, as well as plants, consist of cells and cell products, and even though the cells are part of a whole organism, they have an individual life of their own.
h. Rudolf Virchow - In 1849, he completed his studies of cell growth and reproduction of their division into two cells. He concluded that every cell comes from an already existing cell.
i. Walther Flemming - In the early 1880s, while using dyes to study the structure of cells, he found a structure, which strongly absorbed dye, and named it chromatin. He observed that the chromatin separated into stringy objects during cell division, which became known as chromosomes. Flemming named the division of somatic cells mitosis, from a Greek word for thread. He also observed that the chromosomes formed two star shaped structures on either side of the dividing cell, which he named asters.
j. C. Golgi - In 1898, he described the existence of a network of thread like structures and small sacs (vesicles) in the cytoplasm of nerve cells. This complex organelle composed of flattened sacs and vesicles is now known as a Golgi body or Golgi apparatus
k. J.D. Watson and F.H.C. Crick - In 1953, after Watson realized that the shape of the base pairs meant they could only be arranging in a certain way, Watson and Crick published a paper proposing that the DNA moleule had double helical structure.
- Jewel Santera
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∙ 11y ago
Wiki User
∙ 11y agorobert hooke, matthias, schleiden
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What did virchowschleidan and schwann each contribute to the cell theory?
The name of the theory that Schleiden and Schwann developed is the cell theory.
Is the germ theory and the cell theory the same?
No, The Cell Theory states that all living things have cells, and that every cell came from another cell that already exists.
Scientist and their contribution about cells?
It's the cell theory, I forgot the other ones but one of them is all living things are made up of cells
Who proponent cell theory?
write down the proponent of the cell theory
Exceptions of cell theory of every point of the cell theory?
Viruses
Who were the proponents of cell theory?
Gusto mo si Bob- Ong ;)
What do the proponents of the hydraulic theory for the origin of the state argue?
The proponents of the hydraulic theory for the origin of the state argue that no matter how often energy is conserved or reserved there is a finite amount located in the universe.
Who are the proponents of the system approach as theory of management?
who is the proponent of managerial approach
Who are the proponents of social exchange theory?
Some proponents of social exchange theory include Peter Blau and Richard Emerson. Blau's work focused on the dynamics of social exchange within formal organizations, while Emerson emphasized the importance of interdependence in relationships. Both scholars contributed to the development and popularization of social exchange theory in sociology.
Who supported the heliocentric theory?
The two main proponents in the early days were Nicolas Copernicus and Galileo.
What did virchowschleidan and schwann each contribute to the cell theory?
The name of the theory that Schleiden and Schwann developed is the cell theory.
Three statement that define all living things in terms of cells?
the cell thery
What is the strongest proponents of the human unconscious mind's role in personality?
Sigmund Freud is considered one of the strongest proponents of the human unconscious mind's role in shaping personality. Freud's psychoanalytic theory emphasizes the influence of unconscious drives and desires on behavior and personality development.
Who are the two important proponents of critical theory?
Two important proponents of critical theory are Max Horkheimer and Theodor Adorno, who established the Frankfurt School in the mid-20th century. They sought to analyze and critique society, culture, and politics with a focus on understanding power dynamics and promoting social change.
Who are the proponents of theories?
Proponents of theories are individuals who support or advocate for a particular theory or idea. They are experts, scholars, researchers, or thought leaders who believe in the validity and relevance of a specific conceptual framework or explanation for a given phenomenon.
When did they formulate the cell theory?
they official formulated the cell theory in 1665
Is the germ theory and the cell theory the same?
No, The Cell Theory states that all living things have cells, and that every cell came from another cell that already exists.
