Living Organisms Flashcards Preview

Human Biology Edexcel Unit 1:1 > Living Organisms > Flashcards

Flashcards in Living Organisms Deck (20)
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1
Q

The 8 characteristics of living organisms.

A

Movement, Respiration, Sensitivity, Homeostasis, Growth, Reproduction, Excretion, Nutrition

2
Q

Movement

A

All living cells move

3
Q

Respiration

A

The chemical process in which glucose is broken down inside cells.

4
Q

Sensitivity

A

The detection and response to stimuli in the surroundings.

5
Q

Homeostasis

A

The maintenance of a constant internal environment.

6
Q

Growth

A

A permanent increase in size and mass.

7
Q

Reproduction

A

Production of new organisms.

8
Q

Excretion

A

Removal of waste substances.

9
Q

Nutrition

A

The taking in of substances for use in the body.

10
Q

Name the two types of living organisms.

A

Eukaryotes and prokaryotes

11
Q

Cells that contain a nucleus:

A

Eukaryotes

12
Q

Cells that do not contain a nucleus or organelles:

A

Prokaryotes

13
Q

Describe a cell wall.

A

A layer of cellulose that surrounds a cell and gives it shape and support.

14
Q

Vacuole:

A

A large oval structure containing cell sap found in plant cells.

15
Q

Chloroplasts:

A

An organelle found in plant cells where photosynthesis takes place.

16
Q

Photosynthesis:

A

A process to convert the sun’s energy to produce carbohydrates.

17
Q

Glycogen:

A

Stored carbohydrates.

18
Q

Lipids:

A

Fats stored in the body below the skin or around organs.

19
Q

Name three multicellular organisms.

A

Animals, plants and humans.

20
Q

Name three single-celled organisms.

A

Bacteria, viruses and protoctists.