Characteristics of life

Question 1

biotic

Answer 1

living

Question 2

abiotic

Answer 2

non-living

Question 3

bio-logy

Answer 3

study of living things

Question 4

cellular

Answer 4

have cells - living

Question 5

acelllular

Answer 5

don’t have cells - non-living

Question 6

unicellular

Answer 6

a single cell
one cell that carries out all the things needed to function.

Question 7

multicellular

Answer 7

more than one type of cell
many cells needed in order to function

Question 8

similar cells form ….

Answer 8

tissues

Question 9

tissues form …..

Answer 9

organs

Question 10

organs form …….

Answer 10

organisms

Question 11

The seven life processes

(Mrs Gren)

Answer 11

Movement
Respiration - cellular
Sensitivity

Growth
Reproduction
Excretion
Nutrition

Question 12

Cellular Respiration formula

Answer 12

Glucose + Oxygen = Carbon Dioxide + Water + Energy (ATP)

Question 13

Movement

Answer 13

-improves the chances of catching food

• avoiding capture for both predator and
  prey.

Question 14

Respiration - Cellular

Answer 14

• All the chemical processes that occur within a living organism require energy.
• This energy is obtained from food. Energy in food is not in a useable form.

Question 15

Cell respiration

Answer 15

The process of converting energy in food to energy in the form in which
organisms are able to use it

Question 16

Sensitivity

Answer 16

The ability to detect changes in the surrounding environment and react to it.

Stimuli / stimulus
- a detectable change in the internal or external environment

• The ability of an
  organism or organ to
  perceive and respond
  to external stimuli is
  called sensitivity.

Question 17

Growth

Answer 17

All living organisms increase in size over time

Question 18

How does the organism grow?

Answer 18

1) Cells increase in size
2) The amount of cells increase

Question 19

Reproduction

Answer 19

The ability to reproduce and pass genetic information onto their offspring.

• one cell dividing to form two cells, the term reproduction normally refers to the production of new individuals.

Question 20

Asexual reproduction

Answer 20

can self fertilise - no sexual contact

Question 20

Sexual reproduction

Answer 20

• needs to mate

Question 21

Excretion

Answer 21

getting rid of toxic waste produced by the organism

eg. sweat, urine

Question 22

Is poop a form of excretion?

Answer 22

No it’s simply undigested food. Doesn’t suit the definition.

Question 23

Nutrition

Answer 23

All living organisms require nutrients to

• provide energy for metabolism (the
  chemical reactions that are occurring in
  the cells of the organism)
• provide molecules for growth

Question 24

Autotrophic

Answer 24

nutrients produced by organism
Eg. chlorophyll-containing plants - glucose

Question 25

Hetrophic

Answer 25

nutrients are taken in by organisms
Eg. humans - eating food