in this ppt we will learn about nutrition in plants and animals this ppt explains everything briefly enjoy!!

1. Nutrition in animals and plants
Muhammed Nihal /

2. Nutrition in plants
Definition of nutrition in plants
Plant nutrition is the study of the chemical elements and compounds necessary for plant
growth, plant metabolism and their external supply. In its absence the plant is unable to complete
a normal life cycle, or that the element is part of some essential plant constituent or metabolite.
This is in accordance with Justus von Liebig's law of the minimum. The total essential plant
nutrients include seventeen different elements: carbon, oxygen and hydrogen which are
absorbed from the air, whereas other nutrients including nitrogen are typically obtained from the
soil

3. Autotroph
• An autotroph or primary producer is an
organism that produces complex organic
compounds (such as carbohydrates, fats,
and proteins) using carbon from simple
substances such as carbon
dioxide,generally using energy from light
(photosynthesis) or inorganic chemical
reactions (chemosynthesis). Autotrophs do
not need a living source of carbon or
energy and are the producers in a food
chain, such as plants on land or algae in
water (in contrast to heterotrophs as
consumers of autotrophs or other
heterotrophs). Autotrophs
can reduce carbon dioxide to make organic
compounds for biosynthesis and as stored
chemical fuel. Most autotrophs use water
as the reducing agent, but some can use
other hydrogen compounds such
as hydrogen sulfide.

4. Examples
of Autotrophs
• Autotrophs

5. heterotrophs
Pitcher plant
Controlled
variables
• These are
kept the
same
throughout
your
experiments
Independent
variable
• The one
variable you
purposely
change and
test
Dependent
variable
• The measure
of change
observed
because of
independent
variable
• Decide how
you will
measure the
change
rafflesia

6. Nutrition in plants
photosynthesis chlorophyll

7. Parasitic plants
A parasitic plant is a
plant that derives some
or all of its nutritional
requirement from
another living plant.

8. Saprophytic plants
Saprophytic
plants feed on
dead plants.

9. Nutrition in animals
definition
• It is a process by which
animals take in their food.
It involves different steps
namely, ingestion,
digestion, absorption,
assimilation and egestion.
Human beings exhibit
holozoic mode of nutrition
involving five basic steps.
Steps of nutrition
• Ingestion: The process of taking food into the body is
called ingestion.
• Digestion: the process in which the food containing large,
insoluble molecules is broken down into small, water
soluble molecules is called digestion.
• Absorption: The process in which the digested food
passes through the intestinal wall into blood stream is
called absorption.
• Assimilation: The process in which the absorbed food is
taken in by the body cells and used for energy, growth and
repair is called assimilation.
• Egestion: The process in which the undigested food is
removed from the body is called egestion.

10. Steps of nutrition
Ingestion digestion

11. Steps of nutrition
absorption
• Include print and electronic sources in
alphabetical order
assimilation

12. egestion

13. mouth teeth

14. stomach Food pipe

15. Large intestine Small intestine

16. liver pancreas

17. Nutrition in ruminants
Ruminants are mammals that are able
to acquire nutrients from plant-based
food by fermenting it in a
specialized stomach prior to digestion,
principally through microbial actions. The
process, which takes place in the front
part of the digestive system and
therefore is called foregut fermentation,
typically requires the fermented ingesta
(known as cud) to be regurgitated and
chewed again.

18. amoeba
• An amoeba often called
an amoeboid, is a type
of cell or unicellular organism which
has the ability to alter its shape,
primarily by extending and
retracting pseudopods. Amoebae do
not form a single taxonomic group;
instead, they are found in every
major lineage of eukaryotic organisms
. Amoeboid cells occur not only
among the protozoa, but also
in fungi, algae, and animals.

19. The end