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Diversity in Plants Nutrition
Diversity in Plant Nutrition
3.3
Diversity in Plant Nutrition
Definition of Nutrition
Process of organisms obtaining energy and nutrients from food for growth, maintenance and repair of damaged tissues..
Adaptation of Plants to Obtain Nutrients
All plants can carry out photosynthesis except the parasitic plants.
Some plants also diversify nutrition with photosynthesis.This due to the nutritional adaptations in certain species through evolution.
There are three plant nutrition other than photosynthesis such as
carnivorous plants
,
parasitic plants
and
epiphytic plants
.
Nutritional Adaptations of Plants
Parasitic Plants
The parasitic plants
have modified roots,called haustoria
Haustoria can penetrate into vascular tissue of the host plant to absorb nutrients
Example of parasitic plants:
Rafflesia sp.
Epiphytic Plants
Have modified roots to dry environment and can anchor to the host plant on trunk,branch or other surfaces where they grow
Have roots and leaves to absorb mineral and water from rain water
The epiphytic plants do not harm the host plants
Example of epiphytic plants:
Asplenium nidus
(Bird’s nest fern).
Bulbophyllum
sp. (Orchids).
Carnivorous Plants
The carnivorous plants carry out photosynthesis to obtain glucose.
Grow on hill with nitrogen poor habitat and low soil pH.
The leaves of carnivorous plants are adapted to trap insects.
When the insects are trapped,glands on the leaf surface secrete enzymes and digest the insects.
The digested products,especially amino acids that rich in nitrogen are absorbed and assimilated in the plants.
Example of carnivorous plants:
Nepenthes
sp. (Pitcher plant).
Dionaea muscipula
(Venus fly trap).
Diversity in Plant Nutrition
3.3
Diversity in Plant Nutrition
Definition of Nutrition
Process of organisms obtaining energy and nutrients from food for growth, maintenance and repair of damaged tissues..
Adaptation of Plants to Obtain Nutrients
All plants can carry out photosynthesis except the parasitic plants.
Some plants also diversify nutrition with photosynthesis.This due to the nutritional adaptations in certain species through evolution.
There are three plant nutrition other than photosynthesis such as
carnivorous plants
,
parasitic plants
and
epiphytic plants
.
Nutritional Adaptations of Plants
Parasitic Plants
The parasitic plants
have modified roots,called haustoria
Haustoria can penetrate into vascular tissue of the host plant to absorb nutrients
Example of parasitic plants:
Rafflesia sp.
Epiphytic Plants
Have modified roots to dry environment and can anchor to the host plant on trunk,branch or other surfaces where they grow
Have roots and leaves to absorb mineral and water from rain water
The epiphytic plants do not harm the host plants
Example of epiphytic plants:
Asplenium nidus
(Bird’s nest fern).
Bulbophyllum
sp. (Orchids).
Carnivorous Plants
The carnivorous plants carry out photosynthesis to obtain glucose.
Grow on hill with nitrogen poor habitat and low soil pH.
The leaves of carnivorous plants are adapted to trap insects.
When the insects are trapped,glands on the leaf surface secrete enzymes and digest the insects.
The digested products,especially amino acids that rich in nitrogen are absorbed and assimilated in the plants.
Example of carnivorous plants:
Nepenthes
sp. (Pitcher plant).
Dionaea muscipula
(Venus fly trap).
Chapter : Nutrition in Plants
Topic : Diversity in Plants Nutrition
Form 5
Biology
View all notes for Biology Form 5
Related notes
Main Inorganic Nutrients
Organ for Water and Mineral Salts Uptake
Organisation of Plant tissue
Meristematic Tissues and Growth
Growth Curves
Leaf Structure
Main Organ for Gaseous Exchange
Main Organ for Transpiration
Main Organ for Photosynthesis
Compensation Point
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