Nutrition in Humans

Human beings are complex animals; which have a complex digestive system. The human digestive system is composed of an alimentary canal and some accessory glands. The alimentary canal is divided into several parts, viz. oesophagus,...

Nutrition in Amoeba

Amoeba is a unicellular animal which follows holozoic mode of nutrition. The cell membrane of amoeba keeps on protruding into pseudopodia. Amoeba surrounds a food particle with pseudopodia and makes a food vacuole. The food...

Steps of Holozoic Nutrition Steps of Holozoic Nutrition

Ingestion: The process of taking in the food is called ingestion. Digestion: The process of breaking complex food substances into simple molecules is called digestion. Simple molecules; thus obtained; can be absorbed by...

Animal Nutrition

1. Heterotrophic Nutrition: When an organism takes food from another organism, it is called heterotrophic nutrition. Different heterotrophic organisms follow different methods to take and utilize food. Based on this, heterotrophic...

Significance of Photosynthesis

● Photosynthesis is the main way through which the solar energy is made available for different living beings. ● Green plants are the main producers of food in the ecosystem. ● All other organisms directly or indirectly...

Steps of Photosynthesis

1. Sunlight activates chlorophyll; which leads to splitting of water molecule. 2. The hydrogen; released by splitting of water molecule is utilized for reduction of carbon dioxide to produce carbohydrates. 3. Oxygen is the...

Plant Nutrition

Green plants prepare their own food. They make food in the presence of sunlight. Sunlight provides energy. carbon dioxide and water are the raw materials. Chloroplast is the site where food is made. Photosynthesis: The process...

Types of Nutrition

1. Autotrophic Nutrition: The mode of nutrition in which an organism prepares its own food is called autotrophic nutrition. Green plants and blue-green algae follow the autotrophic mode of nutrition. 2. Heterotrophic Nutrition:...

Nutrition

The process by which an organism takes food and utilizes it is called nutrition. Need of nutrition: Organisms need energy to perform various activities. The energy is supplied by the nutrients. Organisms need various raw...

Life Process

Various functions carried out by living beings; which are necessary to maintain and continue life are called life process. Following are the life processes in living beings: 1. Nutrition 2. Respiration 3. Transportation...