Characteristics of living organisms

Question 1

The seven things living organisums need

What are the eight life proccesses?

Answer 1

• Movment
• Respiration
• Sensitvity
• Growth
• Reproduction
• Excretion
• Nutrition
• Homeostasis

All living life proccess have these proccesses

If it does somthing does not have these life procceses it is either dead or non living (virusus)

Question 2

What is movement?

Answer 2

Action by an organisums either changing posistion or place.

A human walking or a plant moving towards sun light

• Movemnet from place to place is called locomotion
• Movement in changing position is called oreientation

Question 3

What is respiration?

Answer 3

A chemical reaction that realses energy

Energy is realsied from glucose in both aerobic and anerobic respiration

• Aerobic repsirtion- with oxygen
• Anerobic respiration- with out oxygen
  Respiration is not breathing

Question 4

What is sensitvity?

Answer 4

Detection and response to a stimili (chnage in surrondings)

* Nervous/ endocirne system- humans
* Geotropisum/ phototropisum- plants

Change in surroundings does not have to be moving from one place to aother it could be touching somthing hot and responding to that, or seeing a glass of water and reacting to teh thirst or plants responding to light.

Question 5

What is growth?

Answer 5

Increase in size and complecity

Using materials from their food

Question 6

What is reproduction?

Answer 6

Producing offspring

* Sexula-animals/ humans
* Asexula- plants

production of the same kind of organsum

Question 7

What is excretion?

Answer 7

Removal of toxic (waste) materials from the body.

e.g.:
* Skin-Sweating
* Lungs- Carbon dioxide
* Kidenys- Urination
p- o

A chemical reaction that is described as a metobolic reaction. Metabolic reactions produce waste products (toxic).

Question 8

What is nutrition?

Answer 8

Using/ needing food to provide energy

• Plants- Proccess of photosyntheisms carbon dioxide, water and sunlight
• Animals- conuming other living organisums

Question 9

What is homeostasis?

Answer 9

Control their internal environment

To make sure that the conditions teh organisums needs is the right amoun

E.g.
* Theromoregulation- control of body temerature (humans (37c))
* Mechanisums- sweating or vasodillation (humans)
* Glucoregulation- control of blook glucose levels (humans)
* Osmoregulation- control of water levels (humans)
* Transpiration- manitaing a certain temperature (plants)
* Water evopratiing from stomata (plants)