1a - Characteristics of life

Question 1

What are the seven characteristics of life?

Answer 1

MRS (c) GREN

• Movement
• Reproduction
• Sensitivity

(control

• Growth
• Respiration
• Excretion
• Nutrition

Question 2

Definition of movement:

Answer 2

An action by an organism or part of an organism causing a change in place or location

Question 3

Definition of Reproduction:

Answer 3

The process of making more the same kind of organism

Question 4

Definition of sensitivity:

Answer 4

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

Question 5

Definition of Growth:

Answer 5

A permanent increase in size by an increase in cell number or cell size (or both)

Question 6

Definition of Respiration:

Answer 6

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

Question 7

Definition of Excretion:

Answer 7

Removal of toxic materials, waste products of metabolism and excess substances from an organism

Question 8

Definition of Nutrition:

Answer 8

Providing or obtaining the food necessary for growth and tissue repair

Question 9

What is the definition of ‘metabolism’ ?

Answer 9

All the chemical reactions taking place inside a cell or living organism