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Question	Answer
Nutrition	It is the process by which living organisms take in subtances to survive.
What are nutrients for?	Building, repairing and maintaning the body. Getting energy to perform life processes. Regulating body functions.
Types of nutrients	Living organisms cannot use all the nutrients that exist as sources of energy for their life processes. Organic nutrients Inorganic nutrients
Organic nutrients	Are complex substances (by living organisms) Have energetic value ex: fats, carbohydrates and proteins
Taking organics nutrients.	Not all living organisms take organic nutrients from the environment. All living organisms need organic nutrients for life. Some living organisms produce their organic nutrients
Organic Classification	Heterotrophic Autotrophic
Heterotrophic organisms	consumers that cannot produce organic nutrients and they must get them from the environment.
Types of heterotrophics organisms	Primary consumers: they feed on autotrophic organisms (plants). Ex: hervibores Secondary consumers: they feed on other consumers. Ex: carnivores Decomposers: feed on waste. Ex: fungi and bacteria.
Autotrophic Organisms	They transform inorganic nutrients into organic nutrients not energetic value => energetic value
Classification of autotrophic organisms	Photoautotrophs Chemoautotrophs
Photoautotrophs	Use LIGHT as energy source transform inorganic nutrients from photosynthesis intro organic nutrients
Photosynthesis	A chemical process in which photoautotrophics organisms produces organic nutrients using energy from the sun. CO2 + water + light -> energy into -> O2+glucose INORGANIC into ORGANIC Transform light energy into chemical energy
Chlorophyll	The green color of autotrophs is a pigment called ... Substances allows cells to captures energy from the sunlight Only the plants that contain .... can perform photosynthesis
Chloroplast	Inside eukaryotic cells that contains organelles
Light energy	Is only used to carry out photosyntheses
Digestion	The process by which heterotrophic organisms break food down into substances that cells can use
Internal digestion	Saliva has digestive enzimes food is transported to the stomach chemical digestion continues to the intestine food is absorbed by cells living on the intestine walls Image: Download (binary/octet-stream)
External digestion	Fungi feed of other organisms of the floor Mushrooms variate of fungi threadlike tubes (hyphae) branch out. Cells in fungus absorb organic nutrients Image: Download+(1) (binary/octet-stream)
Cellular respiration	It is a chemical reaction that happens inside a cell. occurs when the organic nutrients, with oxygen obtained from the environment produces co2 and water o2 -> energy -> co2 + h2o
Mitochondria	Cellular respiration takes place in this part of the eukaryotic cells. It is the power station.
Chemical reactions	Photosynthesis and cellular respiration are opposite chemical reactions, In plants this two coexist.
Taking inorganic nutrients	Land animals Aquatic animals Vascular plants Algae Fungi Unicellular organisms
Land animals	Ingest water to get salts or food containing water Take in oxygen through lungs or spiracles
Aquatic animals	Absorb water and salts Take in oxygen through gills Small size animals absorb water, salts and oxygen through the surface of their body
Vascular plants	Absorb water and mineral salts from the soil
Algae	Absorb water through body surface Mineral salts are dissolved on water They need O2 and Co2 to survive
Fungi	Captures water and minerals salts from the surface. They get oxygen from the pores and nutrients from the hyphae
Unicellular organisms	Protozoa and bacterias take in inorganic nutrients through cell membrane
Nutrients as source of matter	Cells must grow and divide, this requieres matter. Cells manufacture the biomolecules they are made of
Nutrients as source of energy	Cells use chemical energy to survive. Organic nutrients used as fuel to get energy
Nutrients as regulation of function	Certain specific organic nutrients are required for regulation and coordination chemical reactions
ADN	Nutrients mainly organic and inorganic combine to create a whole range of organic molecules of which organisms are made
Excretion	The process in which living organisms expel some substances or waste that must be released from the cell to the environment.
Things in common between Autotrophic and heterotrophic	Cells uptake nutrients from the environment. Using nutrients in the chemical reactions required to survive. Releasing waste from these reactions.

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	Created by Luciana Rosell over 2 years ago