By learning ICSE Model Paper Class 7 Biology students will know that every living organism needs some energy and nutrient materials to make sure the processes of life go smoothly. Also, the food gets this energy requirement. With animals and human beings, you can understand this better, as you see it daily. You know very well what happens when you skip your breakfast or lunch! But what happens to plants? Plants are living things, too, which require some form of energy. Humans do have tissues and cells. Humans are growing in size and girth also, and they're habitat creators. So they have nutrient requirements to synthesize the food. Of course, the requirements for nutrients vary. In plants, this type of nutrition is called the autotrophic nutritional mode. What does this mean, in reality? By using simple inorganic substances to create organic molecules/substances, plants have the unique ability to make their food. They get the energy sources from things like sun and carbon dioxide, which are not alive. For full notes and video lectures of Nutrition in Plants, students can enrol for ICSE Biology Sample Paper for Class 7 on the Extramarks app. By learning the ICSE Biology Sample Paper for Class 7, students will know that the nutritional requirements of most animals compared with simple plant requirements are fairly broad and complex. The animals use carbohydrates, lipids, nucleic acids, proteins, minerals, and vitamins as nutrients. Carbohydrates are the essential energy source for all animals. Approximately half to two-thirds of the total calories each animal absorbs every day are from carbohydrates. Glucose is the most often used carbohydrate as an energy source. During cellular respiration, this monosaccharide is metabolized, and part of the energy is used to synthesize adenosine triphosphate. Certain essential carbohydrates include maltose, lactose, sucrose, and starch. Lipids are used to form membranes of the cells and organelles, sheaths surrounding the nerve fibres, and certain hormones. One lipid type, fats, is a beneficial source of energy. Nucleic acids are used for deoxyribonucleic acid (DNA), ribonucleic acid (RNA) and ATP production. Animals derive their nucleic acids from plant and animal tissues, particularly from nucleic-containing cells. The nucleic acids are broken down into nucleotides during digestion which are processed in the cells. For full chapter summary students can take online classes for ICSE Class 7 Biology Question Paper from the Extramarks app. Online Video lectures and ICSE Class 7 Biology Question Paper are best provided by the Extramarks app.
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