The 7 Life Processes (MRS GREN) › Revision notes
The 7 Life Processes (MRS GREN) — Revision notes
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Quick recap
5 clipsShort clips from the lesson video. Watch a couple to jog your memory, then try the Brain dump below.
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Brain dump
Before you look at anything else, write down everything you can remember about this lesson: key words, facts, examples. Spelling doesn't matter. Then see which of the 10 key terms you remembered.
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Ones you missed. Read these, then try again tomorrow:
Key terms
- Mrs Gren
- An acronym representing the seven vital life processes: Movement, Reproduction, Sensitivity, Growth, Respiration, Excretion, and Nutrition
- Movement
- An organism moving itself, or parts of itself, from one place to another
- Reproduction
- The process by which living things make offspring
- Sensitivity
- The ability of a living organism to sense changes in its surroundings and respond to them
- Growth
- Getting bigger, or repairing damaged parts, sometimes at the cellular level
- Respiration
- A chemical reaction happening inside cells that breaks down food to release stored energy
- Excretion
- The removal of waste substances produced by chemical reactions inside an organism's cells
- Nutrition
- The process of taking in food or nutrients to provide fuel and energy for all other life processes
- Organism
- Any individual living creature, plant, fungus, or microscopic single-celled life form capable of carrying out life processes
- Life cycle
- The series of stages an organism passes through from its earliest beginnings, such as a seed or egg, through to adulthood and reproduction
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What this lesson covers
How well do you know each one? Be honest: red means go back over it.
- Say what each letter of MRS GREN stands for
- Define each of the seven life processes and give an example
- Explain the difference between respiration and breathing
- Explain the difference between something dead and something that was never alive
- Apply MRS GREN to decide whether an unfamiliar object is living
- Explain why a seed is alive even when it is not carrying out all seven processes
Test yourself
Cover the answer, say it out loud, then check the full quiz on the lesson page.
- Which life process helps a plant grow toward sunlight?
- A car moves down the road. Why doesn't this prove the car is alive?
- A seed doesn't move or reproduce. Does this mean it's not alive?
Topic quiz
11 questions on this topic only — not mixed with anything else, one at a time.
Question 1 of 11
Score: 0 out of 11
Spelling challenge
Read the definition, then type the correct spelling of the term. Uses the same terms as above.
Score: 0/0