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Characteristics of Living Things

Biology

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You WILL be able to:

• list and define the characteristics of living organisms

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There are 7 characteristics:

• Movement

• Metabolism

• Respiration

• Sensitivity/ responsiveness

• 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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•A REACTION THAT A LIVING ORGANISM DOES IN RESPONSE TO A STIMULUS.

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•Stimulus–Anything that causes a response to react.

–Example: if you touch a hot object, you will automatically pull your hand back

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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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•Is a process by which living organisms get bigger.

•A. cells increase in size

•Each cell becomes larger.

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Reproduction• THE PROCESS THAT MAKE

MORE OF THE SAME KIND OF ORGANISM

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•A life functions that provides new living things to take place of those old ones that die. It provides continuation of species.

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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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Assignment

• Cell timeline• Bring manila paper and pentel pen• Research on the following people and the date

of their contributions:• A. ROBERT HOOKE• HANS AND ZACHERIAS JANSEN• ANTON VAN LEEUWENHOEK• MATTHIAS SCHLEIDEN• THEODORE SCHWANN• RUDOLPH VIRCHOW