1 Characteristics of living organisms

Question 1

Define movement

Answer 1

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

Question 2

Define respiration

Answer 2

the chemical reactions in cells that break down nutrient molecules and release energy for metabolism

Question 3

Define sensitivity

Answer 3

the ability to detect or sense stimuli in the internal or external environment and to make appropriate
responses

Question 4

Define growth

Answer 4

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

Question 5

Define excretion

Answer 5

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

Question 6

Define nutrition

Answer 6

Taking in of materials for energy, growth and development; plants require light, carbon dioxide, water and ions; animals need organic compounds and ions and usually need water

Question 7

Define reproduction

Answer 7

Process that results in more individuals of that kind of organism, such as making gametes and the fertilisation of those gametes.