Nutrition in organisms. What Is Nutrition? 2022-11-05

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Nutrition is a fundamental aspect of the lives of all organisms, as it is necessary for the maintenance of healthy and functioning bodies. Proper nutrition involves the intake of the right amounts and types of nutrients, which are essential for the growth, development, and repair of tissues, as well as for the production of energy.

There are two main types of nutrients that organisms need to survive: macronutrients and micronutrients. Macronutrients, such as carbohydrates, proteins, and fats, are needed in larger amounts and are the primary sources of energy for the body. They are also important for building and repairing tissues, regulating body processes, and maintaining proper bodily functions. Micronutrients, on the other hand, include vitamins and minerals, and are needed in smaller amounts. They are essential for the proper functioning of the body's systems and for maintaining good health.

The specific types and amounts of nutrients that an organism needs depend on its size, age, gender, and level of physical activity. For example, growing children and pregnant or lactating women have higher nutrient needs than adults, as their bodies are undergoing rapid growth and development. Similarly, athletes and physically active individuals may have higher energy and nutrient needs due to their increased physical activity.

Proper nutrition is essential for the overall health and well-being of organisms. It helps to maintain a healthy weight, reduces the risk of chronic diseases such as heart disease and diabetes, and supports the immune system. On the other hand, a lack of proper nutrition can lead to a range of health problems, including malnutrition, stunted growth, and increased susceptibility to illness.

There are many different ways that organisms can obtain the nutrients they need. Most animals obtain their nutrients through the consumption of other organisms, either as herbivores that consume plants, or as carnivores or omnivores that consume both plants and animals. Humans, on the other hand, can obtain their nutrients through a varied diet that includes a wide range of foods from the five major food groups: fruits, vegetables, grains, protein sources, and dairy products.

In conclusion, proper nutrition is essential for the health and well-being of all organisms. It involves the intake of the right types and amounts of nutrients, which are necessary for the growth, development, and maintenance of healthy bodies. Ensuring that an organism receives the nutrients it needs is important for maintaining good health and reducing the risk of chronic diseases.

Why is nutrition necessary for an organism? Give any two reasons.

nutrition in organisms

To carry out these activities a large amount of energy is required. To fight diseases b Explain the process of production of food in plants. There are physical or chemical for digesting food. But they show divergence in how they fulfill this demand. Oesophagus: A narrow tube arising from the pharynx, continuing through the thorax and ending in the stomach, food moves in the stomach through the esophagus in the form of the bolus through the movement of peristalsis. In other words, the process of photosynthesis is used to convert light energy into food such as glucose.


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Chapter 4 Nutrition in Living Organisms Std 7 Class 7

nutrition in organisms

Nutrients are required for the optimal functioning and development of all living creatures. These elements are used to synthesize proteins and other essential compounds required for the proper functioning and growth of the plants. Example: Lion, Tiger, Leopard, etc. Some may eat plants herbivores and others eat animals carnivores while few eat both omnivores. Examples include mycorrhizal fungi, orchids, mushrooms and molds. Some animals consume simple inorganic molecules to satisfy their dietary needs, whereas others consume complex compounds.


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Modes Of Nutrition In Plants And Organisms (Classes And Types)

nutrition in organisms

Plants produce their own food through the process of photosynthesis. Parasitic Nutrition: This is the type of nutrition in which certain organisms feed on another organismin order to derive nourishment from it. Different animals consume food in different ways. There are various organisms, which cannot make their food, they are known as heterotrophs. Heterotrophs can be of many varieties depending upon their environment and adaptations. This method is commonly used by fish.

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Modes of Nutrition

nutrition in organisms

These parasitic animals depend on the host animal for their food and so the host animal is devoid of nutrients. Each of them plays an important and unique role in how the human body functions. It fixes nitrogen into nitrates from the atmosphere and transfers it to the soil. This mode of ingestion is usually adopted by aquatic animals such as bony fish. Thus plant food is produced only in the green parts of a plant.

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Nutrition: In Plants and Animals

nutrition in organisms

It is also said as the process of photosynthesis, where light energy is converted into food such as glucose, this type of organisms are called autotrophs. Lion, tigers, wolfs are some of the carnivores. Saprophytic Nutrition Saprophytic plants eat dead and decaying plants and animals for nourishment. This process is known as egestion. In other words, the organisms cannot produce their food and are dependent on others. Every organism has a different mode of nutrition. Some animals depend upon other animals for food.

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What are 3 Types of Nutrition in living organisms ?

nutrition in organisms

This method is commonly used by fish. Python is a good example. Humans, bears, dogs, and crows are some examples of Omnivores. The organisms that are not capable of producing their own food and depend on the other organisms or sources are known as heterotrophs, and this mode of nutrition is called heterotrophic nutrition. It also includes all processes taking place in the body like absorption, assimilation, food intake, catabolism, biosynthesis, and excretion. Omnivores: These include organisms that eat both plants and animals.

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Nutrition in Animals

nutrition in organisms

Autotrophic Mode of Nutrition The organisms who can make their food, which is not dependent on any other organisms for fulfilling the requirements of nutrition, are known as autotrophs. While the other organism, whose body is used by the parasite, is known as the host. Scavengers like vulture that feed on dead animals. During this process, the oxidation of inorganic compounds takes place to generate oxygen and energy in the form of glucose sugar or carbohydrates. Liver—Liver is the largest gland, located on the upper right side of the abdomen below the diaphragm. Some bacteria and green plants acquire their energy in the presence of sunlight.

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Nutrition

nutrition in organisms

Modes of Nutrition The different modes of nutrition can answer the following question: How Do Organisms Obtain Their Nutrition? A sea turtle will have a very different mode of nutrition in comparison to a human being because of the difference in bodily requirements and the habitat each one lives in. To replace the damaged cells and repair tissues. Examples of organisms that exhibit holozoic mode of nutrition are: b. Stay tuned to Embibe for more such informative articles and latest updates. Such organisms are called autotrophs.

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Nutrition in organisms

nutrition in organisms

Nutrition in human Human nutrition deals with the provision of essential nutrients in food which are necessary to support good health and life. They share their nutrition with each other. Nutrition Process in Animals The following steps involve the process of nutrition in animals: Ingestion: The process of taking in food is known as Ingestion. For instance, the difference in mouthparts and teeth in whales, mosquitos, tigers, and sharks or distinct forms of beaks in birds, such as in hawks, woodpeckers, pelicans, hummingbirds, and parrots are a perfect example of adaptation to different types of eating by these animals. It is a collection of many chemicals and substances.

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What Is Nutrition?

nutrition in organisms

The seven basic components of nutrients are Every organism needs energy to perform its life processes, and these energies are acquired by proteins and ATP formation, for this we need raw material in the form of food. Humans eat or ingest food and then digest the food for fulfilling the requirements of nutrition, the digested food gets absorbed and assimilated and the waste is excreted out. It contains Water 98% , some salts , hydrochloric acid 0. As we all know, good nutrition is essential for physical and mental growth, so it is highly recommended to take care of it for the whole of humankind. Autotrophic nutrition: In autotrophic nutrition, the food is synthesized by the organism itself, and in the process of food, production photosynthesis takes place in the presence of sunlight and carbon-di-oxide with the help of chlorophyll.

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