B1 Characteristics of living organisms

Question 1

What is movement?

Answer 1

Movement is an action by an organism causing a change of position or place.

Question 2

What is respiration?

Answer 2

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

Question 3

What is sensitivity?

Answer 3

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

Question 4

What is growth?

Answer 4

Growth is a permanent increase in size and dry mass by an increase in cell number and/or cell size.

Question 5

What is reproduction?

Answer 5

Reproduction is the processes that make more of some kind of organism.

Question 6

What is excretion?

Answer 6

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

Question 7

What is nutrition?

Answer 7

Nutrition is the 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.