1.1 Characteristics of organisms

Question 1

organism

Answer 1

a living thing

Question 2

Movement

Answer 2

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

Question 3

Respiration

Answer 3

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

Question 4

sensitivity

Answer 4

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

Question 5

growth

Answer 5

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

Question 6

reproduction

Answer 6

The processes that make more of the same kind of organism

Question 7

Excretion

Answer 7

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

Question 8

Nutrition

Answer 8

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

Question 9

dry mass

Answer 9

The mass of an organism after it has been killed and all water removed from it

Question 10

Metabolism

Answer 10

the chemical reactions that take place in living organisms