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Living Things

Characteristics of Living Things

Concepción Arenal

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You will need to be able to:

• list and define the characteristics of living organisms

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There are 7 characteristics:

• Movement

• Respiration

• Sensitivity

• Growth

• Reproduction

• Excretion

• Nutrition

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Movement

• An action by an organism or part of an organism causing a change of position or place.

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Respiration

• The chemical reactions that break down nutrient molecules in living cells to release energy

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Sensitivity

• The ability to detect or sense changes in the environment (stimuli) and to make responses.

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Growth

• A permanent increase in size and dry mass by an increase in cell number or cell size or both.

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Reproduction

• The processes that make more of the same kind of organism

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Excretion

• The removal from organisms of toxic materials, the waste products of metabolism (chemical reactions in cells including respiration) and substances in excess of requirements.

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Nutrition

• The taking in of nutrients which are organic substances and mineral ions, containing raw materials or energy for growth and tissue repair, absorbing and assimilating them.

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Summary

• Movement

• Respiration

• Sensitivity

• Growth

• Reproduction

• Excretion

• Nutrition

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Quiz

Guess which characteristic is being demonstrated by the following animations:

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Question 1

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Question 2

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Question 3

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Question 4

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Question 5

Which two characteristics are shown by this animation:

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Question 6

Other than movement, which characteristics are shown by this animation:

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Question 7

So far you should have named a total of five different characteristics.

However there are 7 characteristics in total.

Name the two remaining characteristics.

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Answers:

How well did you do?

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Question 1: Excretion

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Question 2: Nutrition

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Question 3: Movement

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Question 4: Reproduction

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Question 5: Sensitivity and Movement

Which two characteristics are shown by this animation:

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Question 6: Sensitivity and Nutrition

Other than movement, which characteristics are shown by this animation:

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Question 7: Growth and Respiration

So far you should have named a total of five different characteristics.

However there are 7 characteristics in total.

Name the two remaining characteristics.

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Now you should be able to

• list and define the characteristics of living organisms

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Cambridge IGCSE Biology

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