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1. FULL EXPLAINED
PART 1

3. NUTRITION
NUTRITION IN PLANTS NUTRITION IN ANIMALS
1.Plants are
Autotrophs.
2.Can make their
own food.
1.Animals are
Heterotrophs.
2.Depends on
plants or other
animals for
their food.

4. MODES OF NUTRITION
AUTROTROPHIC HETEROTROPHIC
1.Kind of nutrition in
which inorganic
materials like CO2,
water, etc. are utilized
to prepare organic food
by the process of
photosynthesis,
E.g., Green plants.
1.Kind of nutrition in
which organisms do
not possess the ability
to synthesize their own
food. They depend on
autotrophs for their
food supply directly or
indirectly.
E.g., Animals,Fungi.

5. PHOTOSYNTHESIS
Autrophic nutrition is the process by which autotrophs
Take in CO2 and H2O and convert these into
Carbohydrates in the presence of Chlorophyll,sunlight
Is called Photosynthesis.
Equations:
6CO2 + 12H2o ----------- C6H12O6 +6o2 + 6H2O

6. FUNCTIONS:
(a).Exchange of gases
O2/CO2.
(b).Loses large amount of
water (water vapour)
during transpiration.

7. 6CO2 + 12H2O ---------> C6H12O6
+ 6CO2 + 6H2O

8. HETROTROPHIC NUTRITION
HOLOZOIC PARASITIC
Animals take in solid
food and
breakdown inside
the body.
E.g., Amoeba,
animals.
Parasitic live inside or
outside other organism
(host) and derive
nutrition from it.
E.g., Cuscutta (plant
parasitic), Ticks leech
etc.

9. HOW DO ORGANISMS OBTAIN THEIR FOOD
AMOEBA PARAMAECIUM
PSEUDOPEDIA
|
CAPTURE FOOD
|
TAKEN IN| FOOD VACUOLE|
|
DIGESTED OF FOOD
|
UNDIGESTED FOOD
|
MOVE TO SURFACE OF CELL
AND THROWN OUT.
PARAMAECIUM
|
CILIA
|
TAKE IN FOOD
|
AT A SPECIFIC SPOT
(PRESENT ALL OVER THE
BODY)