16
CIENCIAS DE LA NATURALEZA 1º DE E.S.O. PRIMER TRIMESTRE FIRST TERM Chapter 3: Life on Earth http:// www.ancientlifepublishing.c om/
CIENCIAS DE LA NATURALEZA1º DE E.S.O.
PRIMER TRIMESTRE FIRST TERM
Chapter 3:
Life on Earth
http://www.ancientlifepublishing.com/
WHAT IS A LIVING THING?1) All the organisms in the biosphere are able to perform three vital functions:- Nutrition, - Interaction, and- Reproduction
3.1.LIVING ORGANISMS
http://www.schoolsnet.com/pls/hot_school/sn_lessons.page_pls_lesson_detail?x=16180339&p_lesson_id=88&p_res_type_id=15
Here in you can find more characteristics of the living organisms. Make a list and resume all of them in a
few words in your notebook
WHAT IS A LIVING THING?1) The three vital functions:There are two kinds of nutrition:-AUTOTROPHIC AND HETEROTROPHIC
Autotrophs produce their own food by taking water, CO2 and mineral substances from the
environment
Heterotrophs obtain their food by eating other
organisms or their remains
3.1.LIVING ORGANISMS
AUTOTROPHIC NUTRITION
Autotrophs produce their own food by taking water, CO2 and mineral substances from the
environment Photosynthesis
3.1.LIVING ORGANISMS
HETEROTROPHIC NUTRITION
Heterotrophs obtain their food by eating other
organisms or their remainsCellular respiration
3.1.LIVING ORGANISMS
“The Lion King” and its associated characters are the property of Walt Disney Pictures, Incorporated.
In the film “The Lion King” Mufasa explains to his son Simba how all living things are
connected:
“Antelopes eat the grass, lions eat antelopes, but when the lions die, their
bodies become food for the grass, and so the ‘circle of life’ goes on….”
3.1.LIVING ORGANISMSAutotrophs and
heterotrophs are closely related each others
WHAT IS A LIVING THING?1) All the organisms in the biosphere are able to perform three vital functions:-Interaction: Living organisms are able to sense changes in their environment and react in order to survive
http://www.clam-arte.com.ar/pintor.gif
3.1.LIVING ORGANISMS
WHAT IS A LIVING THING?1) All the organisms in the biosphere are able to perform three vital functions:-Interaction: Living organisms are able to sense changes in their environment and react in order to survive
http://www.youtube.com/watch?v=Ze8NV7cvW8k
Plants grow towards the light
http://www.youtube.com/watch?v=yps7pgq1TAk&feature=fvsr
Animals detect food and move towards it
3.1.LIVING ORGANISMS
WHAT IS A LIVING THING?1) All the organisms in the biosphere are able to perform three vital functions:- Reproduction: Organisms produce descendants that maintain their characteristics
3.1.LIVING ORGANISMS
WHAT IS A LIVING THING?1) Reproduction can be …
Asexual Sexual
http://www.youtube.com/watch?v=gEwzDydciWc&feature=related
3.1.LIVING ORGANISMS
WHAT IS A LIVING THING?2) All the living beings in the biosphere are made up of similar substances
3.1.LIVING ORGANISMS
WHAT IS A LIVING THING?2) All the living beings in the biosphere are made up of similar substances Water (65-90 %)
3.1.LIVING ORGANISMS
WHAT IS A LIVING THING?2) All the living beings in the biosphere are made up of similar substances Water (65-90 %)
Substances rich in carbon (10-30 %)
3.1.LIVING ORGANISMS
CARBOHIDRATES NUCLEIC ACIDS
LIPIDS PROTEINS
WHAT IS A LIVING THING?2) All the living beings in the biosphere are made up of similar substances Water (65-90 %)
Substances rich in carbon (10-30 %)
Mineral substances (1-5 %)
3.1.LIVING ORGANISMS
WHAT IS A LIVING THING?3) All the living beings in the biosphere are formed by cells
A cell is the smallest unit of a living thing capable of performing the three vital functions: nutrition, relation, and reproduction.
http://www.youtube.com/watch?v=hOLAGYmUQV0
3.1.LIVING ORGANISMS
Cells were discovered by using a microscope
By Robert Hooke (1665)
The first cell description ever
3) All the living beings in the biosphere are formed by cells
In a cork
3.1.LIVING ORGANISMS
