Nutrition in Animals Class 7 PPT

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C l a s s - 7
Nutrition in Animals
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C l a s s - 7
Nutrition in Animals
Food is essential for sustaining
life, providing the body with
essential nutrients and energy to
function optimally while also
contributing to overall health and
well-being.
Why we need Food?
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C l a s s - 7
Nutrition in Animals
Food is essential for sustaining
life, providing the body with
essential nutrients and energy to
function optimally while also
contributing to overall health and
well-being.
Why we need Food?
The process of taking in food is called ingestion.
Digestion is the process of breaking down ingested food
into simpler substances.
Ingestion and Digestion
Page 4


C l a s s - 7
Nutrition in Animals
Food is essential for sustaining
life, providing the body with
essential nutrients and energy to
function optimally while also
contributing to overall health and
well-being.
Why we need Food?
The process of taking in food is called ingestion.
Digestion is the process of breaking down ingested food
into simpler substances.
Ingestion and Digestion
Various species have unique ways of obtaining food.
Examples: Bees and hummingbirds suck plant nectars,
infants of humans and some animals feed on mother’s
milk, snakes like pythons consume prey, aquatic animals
filter small food particles.
Different Ways of Taking Food
Page 5


C l a s s - 7
Nutrition in Animals
Food is essential for sustaining
life, providing the body with
essential nutrients and energy to
function optimally while also
contributing to overall health and
well-being.
Why we need Food?
The process of taking in food is called ingestion.
Digestion is the process of breaking down ingested food
into simpler substances.
Ingestion and Digestion
Various species have unique ways of obtaining food.
Examples: Bees and hummingbirds suck plant nectars,
infants of humans and some animals feed on mother’s
milk, snakes like pythons consume prey, aquatic animals
filter small food particles.
Different Ways of Taking Food
The human digestive system
consists of the alimentary canal
and associated glands.
Components: Mouth, Buccal
Cavity, Oesophagus, Pharynx,
Stomach, Duodenum, Small
Intestine, Large Intestine (colon),
Rectum, Anus.
Digestion in Humans