Biology Chapter: Living vs Non-Living Organisms

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Questions and Answers

What are the characteristics of living organisms?

They have a definite form and size. (correct)

They are made up of cells. (correct)

They usually do not have a definite form and size.

They possess a definite form and size.

What are the defining characteristics of non-living objects?

They are not usually made up of cells.

They usually do not have a definite form and size. (correct)

They are usually made up of cells.

They have a definite form and size.

They are not made up of cells. They generally do not have a definite form and size. (correct)

They are made up of cells. They generally do not have a definite form and size.

Which of these is a characteristic of non-living objects?

They can reproduce.

They are composed of protoplasm.

They show movement.

They show no movement. (correct)

They can respond to external stimuli.

They are made up of cells.

They generally do not have a definite form and size. (correct)

What is the term for the basic, structural and functional unit of life?

Cell Signup and view all the answers

All organisms are composed of protoplasm.

True Signup and view all the answers

Which of these is NOT a characteristic of a living organism?

They are made up of cells. They generally do not have a definite form and size. Signup and view all the answers

All living things have a definite form and size.

True Signup and view all the answers

Living organisms can exist without a definite form and size.

False Signup and view all the answers

Give an example of a living object.

A tree, a dog, a bird Signup and view all the answers

'The earth was formed about 4.6 billion years ago.' What does that mean?

The earth is 4.6 billion years old. Signup and view all the answers

Life on Earth is thought to have originated about 1 billion years ago.

False Signup and view all the answers

The early earth's atmosphere consisted of about 80% methane and 10% ammonia.

True Signup and view all the answers

The origin of life on Earth is a well-defined and well-understood process that is backed up by a vast body of scientific evidence.

False Signup and view all the answers

A.I. Oparin and J.B.S. Haldane independently proposed similar theories on the origin of life in the early 20th century.

True Signup and view all the answers

In Oparin's theory, life originated from 'coacervates'.

True Signup and view all the answers

Stanley Miller created the first artificial cell.

False Signup and view all the answers

The process of chemical evolution of life was based on the principle of natural selection.

False Signup and view all the answers

What is the name of the process by which molecules of an inorganic substance were assembled together during the early stages of life?

Chemical Evolution Signup and view all the answers

According to the modern theory of evolution, life evolved from a common ancestor.

True Signup and view all the answers

Study Notes

Living Organisms vs. Non-Living Objects

Living organisms have a defined form and size, while non-living objects usually do not
Living organisms are composed of living cells, while non-living objects are acellular
Living organisms possess protoplasm; non-living objects do not
Living organisms respond to external stimuli, non-living objects do not
Living organisms exhibit movement, while non-living objects do not
The growth in living organisms comes from adding new living material; the growth of non-living objects comes from adding materials from the outside

Origin of Life on Earth

Earth formed approximately 4.6 billion years ago
Early life may have originated a billion years later.
The exact origination of life is unknown.
Several scientific theories of life's origin exist; most have been rejected
Modern concepts suggest chemical evolution, followed by biological evolution
These concepts were proposed by A.I. Oparin and J.B.S. Haldane, building upon previous theories (e.g., Miller-Urey experiment)
Oparin and Haldane's idea is also known as Biochemical Synthetic theory or chemical evolution; life originated from inorganic molecules via chemical reactions.

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Description

Explore the fundamental differences between living organisms and non-living objects in this quiz. Understand the characteristics that define life and learn about the theories surrounding the origin of life on Earth. Test your knowledge on key concepts and scientific theories related to biological evolution.