Cells, Cell Theory, and Taxonomy Test worksheet with historical scientist portraits.

Problem Explanation:

The task involves identifying key contributors to the development of Cell Theory and matching them with their respective contributions. Additionally, there is a multiple-choice question about the definition of a cell.

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Solution:

#### 1. What is a CELL?
The correct answer is:
- C. The basic unit of structure and function in living organisms.

Explanation:
A cell is the fundamental building block of all living organisms. It is the smallest unit capable of performing all the processes necessary for life, such as metabolism, growth, and reproduction. This makes option C the correct choice.

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#### 2. An English Scientist who looked at cork under a microscope and called them ‘cells’ because of their hollow room-like structures.
- Answer: Robert Hooke (D)

Explanation:
Robert Hooke was an English scientist who, in 1665, observed slices of cork under a microscope. He noticed that the cork was composed of small, box-like structures and named them "cells" because they resembled the small rooms (cells) where monks lived in monasteries.

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#### 3. A German botanist who viewed plant parts under a microscope and discovered that all plant life is made from cells.
- Answer: Matthias Schleiden (C)

Explanation:
Matthias Schleiden was a German botanist who, in 1838, proposed that all plants are composed of cells. His work was a significant contribution to the development of Cell Theory.

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#### 4. The father and son Dutch lens makers who produced the first compound microscope.
- Answer: Antonie van Leeuwenhoek (A)

Explanation:
Antonie van Leeuwenhoek, although not directly mentioned as a lens maker, is often associated with the development of microscopes. However, the question seems to refer to the father and son team of Zacharias Janssen and his son Hans Janssen, who are credited with inventing the first compound microscope around 1590. Since this detail is not explicitly provided in the image, we can infer that the closest match is Antonie van Leeuwenhoek, who used microscopes extensively.

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#### 5. A German physician who stated, but did not originally discover, that living cells come only from other living cells.
- Answer: Theodor Schwann (E)

Explanation:
Theodor Schwann was a German physiologist who extended Cell Theory to animals in 1839. He proposed that all animals are composed of cells and also stated the principle of biogenesis (living cells arise only from pre-existing living cells), though he did not discover it.

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#### 6. A German zoologist who viewed animal tissue under a microscope and discovered that all animal life is made from cells.
- Answer: Theodor Schwann (E)

Explanation:
Theodor Schwann's work on animal tissues under a microscope led him to conclude that all animals are composed of cells. This was a crucial part of extending Cell Theory beyond plants.

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#### 7. A German embryologist who discovered that cells divide to form new cells but was not recognized for the discovery.
- Answer: Rudolf Virchow (B)

Explanation:
Rudolf Virchow was a German pathologist and biologist who formulated the principle that "omnis cellula e cellula," meaning "all cells come from pre-existing cells." Although he is well-known for this principle, the specific mention here refers to his lesser-recognized work on cell division.

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#### 8. A Dutch scientist who looked at blood, rain water, and teeth-scrapings through a microscope and discovered micro-organisms. He is considered the “Father of Microbiology”.
- Answer: Antonie van Leeuwenhoek (A)

Explanation:
Antonie van Leeuwenhoek was a Dutch scientist who made significant advancements in microscopy. He was the first to observe microorganisms like bacteria and protozoa using his own high-quality microscopes. His work laid the foundation for microbiology, earning him the title "Father of Microbiology."

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Final Answers:

1. C. The basic unit of structure and function in living organisms.
2. D. Robert Hooke
3. C. Matthias Schleiden
4. A. Antonie van Leeuwenhoek
5. E. Theodor Schwann
6. E. Theodor Schwann
7. B. Rudolf Virchow
8. A. Antonie van Leeuwenhoek

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Boxed Final Answer:

\[
\boxed{
\begin{array}{ll}
1. & \text{C} \\
2. & \text{D} \\
3. & \text{C} \\
4. & \text{A} \\
5. & \text{E} \\
6. & \text{E} \\
7. & \text{B} \\
8. & \text{A} \\
\end{array}
}
\]