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1. What is the basic unit of structure and function in a living thing

called?
2. How did the invention of the microscope help scientists learn
more about living things?
3. Who was the first to discover cells?
4. Draw a timeline that shows the dates, discoveries, and
scientists involved in the development of the cell theory.
5. What are the four statements of the cell theory?
6. What are specialized cells? List three examples.
7. What are four similarities that all cells share?
8. List the cell part for each letter on the diagram below. What is
the function of each part?

2 Answers

12 votes

Final answer:

The basic unit of structure and function in a living thing is called a cell. The invention of the microscope helped scientists learn more about living things by allowing them to see the smaller structures and organisms that make up living organisms. The cell theory was developed based on different discoveries and scientists over time.

Step-by-step explanation:

The basic unit of structure and function in a living thing is called a cell. Cells were first discovered by Robert Hooke when he observed dead cork tissue under a microscope in 1665. The invention of the microscope helped scientists learn more about living things by allowing them to see the smaller structures and organisms that make up living organisms.

The first person to observe living cells under a microscope was Antonie van Leeuwenhoek in the 1670s.

The cell theory was developed over time based on different discoveries and scientists. Here is a timeline that shows some key dates and discoveries:

  1. 1665 - Robert Hooke observes cork cells
  2. 1670s - Antonie van Leeuwenhoek observes living cells
  3. 1838 - Matthias Schleiden and Theodor Schwann propose the cell theory
  4. 1855 - Rudolf Virchow adds the idea that cells arise from existing cells

The four statements of the cell theory are:

  1. All living things are composed of cells
  2. Cells are the basic unit of life
  3. New cells arise from existing cells
  4. Cells carry out the functions needed for life

Specialized cells are cells that have specific structures and functions that allow them to perform specific tasks in the body. Three examples of specialized cells are:

  • Red blood cells - specialized for carrying oxygen
  • Muscle cells - specialized for contraction and movement
  • Nerve cells (neurons) - specialized for transmitting electrical signals

All cells share four similarities:

  1. They are enclosed by a cell membrane
  2. They contain genetic material (DNA)
  3. They have cytoplasm, which is a fluid-filled region
  4. They have ribosomes, which are involved in protein synthesis

The diagram is not provided, so I cannot list the cell parts or their function in response to that specific question.

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