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Questions and Answers
What is the process called when plants prepare their own food from simpler substances?
What is the process called when plants prepare their own food from simpler substances?
What is the common factor among bees, humming-birds, and infants of humans?
What is the common factor among bees, humming-birds, and infants of humans?
What is the main purpose of nutrition in animals?
What is the main purpose of nutrition in animals?
What type of animals eat both plants and animals?
What type of animals eat both plants and animals?
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What is the mode of feeding in aquatic animals?
What is the mode of feeding in aquatic animals?
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What is the type of feeding in snakes like pythons?
What is the type of feeding in snakes like pythons?
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What is the significance of nutrition in animals?
What is the significance of nutrition in animals?
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What is the component of food that is utilised in the body?
What is the component of food that is utilised in the body?
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What is the main function of the large intestine in the human digestive system?
What is the main function of the large intestine in the human digestive system?
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In which part of the human digestive system does absorption of nutrients take place?
In which part of the human digestive system does absorption of nutrients take place?
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What is the main difference in the mode of feeding between grass-eating animals and humans?
What is the main difference in the mode of feeding between grass-eating animals and humans?
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What is a common cause of diarrhoea?
What is a common cause of diarrhoea?
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What is the first step in the process of nutrition in animals?
What is the first step in the process of nutrition in animals?
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Which of the following organs is responsible for secreting digestive juices in the human digestive system?
Which of the following organs is responsible for secreting digestive juices in the human digestive system?
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What is the primary function of the buccal cavity in the human digestive system?
What is the primary function of the buccal cavity in the human digestive system?
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What is the final step in the process of nutrition in animals?
What is the final step in the process of nutrition in animals?
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What is the primary function of the small intestine?
What is the primary function of the small intestine?
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What is the main function of the large intestine?
What is the main function of the large intestine?
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Grass-eating animals, such as cows, have a specialized digestive system that allows them to break down and extract nutrients from plant material. What is the primary site of digestion in these animals?
Grass-eating animals, such as cows, have a specialized digestive system that allows them to break down and extract nutrients from plant material. What is the primary site of digestion in these animals?
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What is one of the main causes of diarrhoea?
What is one of the main causes of diarrhoea?
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What is the primary function of the salivary gland?
What is the primary function of the salivary gland?
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What is the role of the liver in the digestive system?
What is the role of the liver in the digestive system?
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What is the importance of vitamins in the diet?
What is the importance of vitamins in the diet?
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What is the purpose of glucose drips in medical treatment?
What is the purpose of glucose drips in medical treatment?
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Study Notes
Nutrition in Animals
- Animals cannot prepare their own food like plants, so they obtain food from plants directly or indirectly by eating other animals.
- Animals require food for growth, repair, and functioning of the body, and animal nutrition includes nutrient requirement, mode of intake of food, and its utilisation in the body.
Different Ways of Taking Food
- Bees and humming-birds suck the nectar of plants.
- Infants of humans and many other animals feed on mother's milk.
- Snakes like the python swallow the animals they prey upon.
- Some aquatic animals filter tiny food particles floating nearby and feed upon them.
Human Digestive System
- The human digestive system consists of the alimentary canal and secretory glands.
- The alimentary canal includes:
- Buccal cavity
- Oesophagus
- Stomach
- Small intestine
- Large intestine ending in rectum and anus
- The main digestive glands that secrete digestive juices are:
- Salivary glands
- Liver
- Pancreas
- The stomach wall and the wall of the small intestine also secrete digestive juices.
Nutrition Process
- Nutrition is a complex process involving:
- Ingestion
- Digestion
- Absorption
- Assimilation
- Egestion
- Digestion of carbohydrates, like starch, begins in the buccal cavity.
Digestive System Functions
- Salivary gland: saliva secretion
- Stomach: acid release
- Liver: bile juice secretion
- Small intestine: digestion is completed
- Large intestine: absorption of water and release of faeces
- Rectum: storage of undigested food
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Description
Learn about the different ways animals take in food, including digestion, and how it differs from plant nutrition through photosynthesis. Explore the basics of nutrition in animals.
