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Biology: Chapter 8 - Cell: The Unit of Life

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Biology: Chapter 8 - Cell: The Unit of Life

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Questions and Answers

What is the fundamental structural and functional unit of all living organisms?

Organ

Cell (correct)

System

Tissue

Who is credited with the discovery of the nucleus?

Theodore Schwann

Anton Von Leeuwenhoek

Matthias Schleiden

Robert Brown (correct)

Who first saw and described a live cell?

Robert Brown

Matthias Schleiden

Anton Von Leeuwenhoek (correct)

Theodore Schwann

What is necessary for independent living?

A complete structure of a cell Signup and view all the answers

What term is used to describe organisms composed of a single cell?

Unicellular Signup and view all the answers

What is a characteristic of unicellular organisms?

They are capable of independent existence and performing essential functions of life Signup and view all the answers

What is the primary reason why anything less than a complete structure of a cell does not ensure independent living?

Because it is not a fundamental structural and functional unit of life Signup and view all the answers

What is the primary contribution of Matthias Schleiden to the cell theory?

He examined a large number of plants and observed that all plants are composed of different kinds of cells Signup and view all the answers

What is the significance of the invention of the microscope and its improvement leading to the electron microscope?

It revealed all the structural details of the cell Signup and view all the answers

What is a characteristic of multicellular organisms?

They are composed of many cells Signup and view all the answers

What is the primary characteristic that distinguishes living organisms from non-living things?

The presence of cells Signup and view all the answers