- List and describe the characteristics of living organisms.
Ever heard of Mrs. Gren?
Nope. Not a celebrity. She’s just useful for one thing and one thing only. This:
M – Movement
R – Respiration
S – Sensitivity
G – Growth
R – Reproduction
E – Excretion
N – Nutrition
Describing these characteristics is done in the next part.
- Define the terms:
- Movement: an action by an organism or part of an organism causing a change of position or place.
- Respiration: the chemical reactions that break down nutrient molecules in living cells to release energy.
- Sensitivity: the ability to detect or sense changes in the environment (stimuli) and to make responses.
- Growth: a permanent increase in size and dry mass* by an increase in cell number or cell size or both.
- Reproduction: the process by which living organisms produce offspring
- Excretion: removal from organisms of toxic materials, waste products of metabolism (chemical reactions in cells including respiration) and substances in excess of requirements.
- Nutrition: 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.
*dry mass is the mass of an organism or cell minus the mass of the water in it.
Notes Submitted by Sarah.
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