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Ask QuestionPosted by Tejas Chaudhary 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
The part of the plant which produces food is a leaf. Leaves prepare food in presence of sunlight by a process called photosynthesis. In this process, food is produced by utilizing water and carbon dioxide in the presence of sunlight. Therefore, leaves are called food factories of the plants.
Posted by Commerce Easy 5 years, 7 months ago
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Posted by Sunita Agrawal 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Small finger-like projections found in our small intestine are known as villi. The function of the villi is to increase the surface area of the intestine so as to increase its capacity to absorb nutrients and liquid from food passing through it.
Posted by Manish Kumar Goyal 5 years, 7 months ago
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Meghna Thapar 5 years, 7 months ago
Digestion of food in human beings begins in the mouth. The mouth cavity contains teeth, tongue and salivary glands. The teeth cut the food into small pieces, chew and grind it. This is called physical digestion. Salivary glands produce saliva which mixes with the food. This involves chemical digestion of food. The saliva contains an enzyme called salivary amylase which digests the starch and converts it into maltose sugar.
Posted by Samiksha Gopinath 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Rhizobium is a nitrogen fixing bacteria. Elemental nitrogen cannot be used directly by plant or animals . They need to be converted in usable Nitrogen source like nitrites and nitrates.
Rhizobium convert elemental nitrogen to nitrate .nitrates are taken up by leguminous plant .at the same time leguminous plant provide nutrient to rhizobium.
Posted by Garima Vijay 5 years, 7 months ago
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Meghna Thapar 5 years, 7 months ago
Neutralisation Reaction: The reaction in which an acid reacts with a base to form salts and water is called neutralization reaction.
Acid + base Salt + Water
Some heat is always evolved in a neutralization reaction. The heat raises the temperature of reaction mixture due to which the reaction mixture becomes hot. In this reaction two new substances salt and water are formed.
Posted by Shreya Garg 5 years, 7 months ago
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Meghna Thapar 5 years, 7 months ago
Temperature is a measure of the average kinetic energy of all the particles making up a substance. Temperature does not depend upon the mass of an object. The thermal energy of a substance is a measure of the total kinetic energy of its particles.
The difference between temperature and thermal energy is that temperature measures the average kinetic speed of molecules and thermal energy is the total kinetic energy of all particles in a given substance. Both temperature and thermal energy are made by the movement of particles.
Posted by Shreya Baheti 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
- Amoeba is a microscopic single-celled organism found in pond water which has a cell membrane, a round, dense nucleus and many bubble like vacuoles.
- The shape of amoeba is variable.
- It has tiny finger like projections called pseudopodia or false feet for movement and capture of food.
- It eats tiny organisms by spreading out its pseudopodia around its food particle and then engulfing it.
- The food gets trapped inside food vacuole, into which digestive juices are secreted and convert them into simpler substances.
- The digested food is then absorbed which is required for growth, maintenance and multiplication.
- The undigested food is expelled out by vacuole.
Posted by Meenu Bharti 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
In all mammals, the salivary glands functions as an exocrine gland, which produces saliva through a system of ducts. Among all other mammals, humans have hundreds of salivary glands and are present within the mouth. The basic secretion units of salivary glands are called acini and are composed of clusters of cells.
Salivary Glands are composed of two types of secretory cells:
- Serous cells– These cells are present on the surface of epithelium, submucosal glands and secretes an enzyme solution.
- Mucous cells– These cells are present inside the stomach, in the necks of the gastric pits and produces mucus.
Posted by Shaurya Aditya Singh 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Liver secretes bile juice which is stored in a sac called the gall bladder. Bile juice helps in the digestion of fats.
Shreya Baheti 5 years, 7 months ago
Posted by Kiran A Patel 5 years, 7 months ago
- 2 answers
Yogita Ingle 5 years, 7 months ago
- Amoeba is a microscopic single-celled organism found in pond water which has a cell membrane, a round, dense nucleus and many bubble like vacuoles.
- The shape of amoeba is variable.
- It has tiny finger like projections called pseudopodia or false feet for movement and capture of food.
- It eats tiny organisms by spreading out its pseudopodia around its food particle and then engulfing it.
- The food gets trapped inside food vacuole, into which digestive juices are secreted and convert them into simpler substances.
- The digested food is then absorbed which is required for growth, maintenance and multiplication.
- The undigested food is expelled out by vacuole.
Posted by Dharmbir Singh 5 years, 7 months ago
- 3 answers
Yogita Ingle 5 years, 7 months ago
The breeding and management of silk worms for the production of silk is known as sericulture.
Different types of silk (e.g. mulberry silk, Tassar silk etc.) with different textures are obtained from different varieties of silk moths.
Posted by Garima Gupta 5 years, 7 months ago
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Posted by Rajesh Bhardwaj 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
The process of obtaining food and utilizing it to grow, stay healthy and repair any damaged body part is known as nutrition. Plants produce their food by taking raw materials from their surroundings, such as minerals, carbon dioxide, water, and sunlight. There are two modes of nutrition:
- Autotrophic – Plants exhibit autotrophic nutrition and are called as a primary producer. Plants synthesis their food by using light, carbon dioxide, water, carbon dioxide, or other chemicals.
- Heterotrophic – Both animals and human beings are called heterotrophs, as they depend on plants for their food.
Posted by Ayush Mourya 5 years, 7 months ago
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Garima Vijay 5 years, 7 months ago
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Posted by Aashi Jain 5 years, 7 months ago
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Meghna Thapar 5 years, 7 months ago
Phytoplankton are tiny photosynthetic organisms that are the major producers of marine life. They form the foundation of the food web for most marine life. They are responsible for half of the photosynthetic activity on earth, making them important to both their local and the global ecosystems.
Posted by Ravi Singh 5 years, 7 months ago
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Meghna Thapar 5 years, 7 months ago
Prochlorococcus and other ocean phytoplankton are responsible for 70 percent of Earth's oxygen production. However, some scientists believe that phytoplankton levels have declined by 40 percent since 1950 due to the warming of the ocean. Ocean temperature impacts the number of phytoplankton in the ocean. Most of this oxygen comes from tiny ocean plants – called phytoplankton – that live near the water's surface and drift with the currents. Like all plants, they photosynthesize – that is, they use sunlight and carbon dioxide to make food. A byproduct of photosynthesis is oxygen.
Posted by Shashank Tiwari 5 years, 7 months ago
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Garima Gupta 5 years, 7 months ago
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Posted by Shashank Tiwari 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Fungi is a eukaryotic organism that includes microorganisms such as yeasts, moulds, and mushrooms. These organisms are classified under kingdom fungi.
The organisms found in Kingdom fungi contain a cell wall and are omnipresent. They are classified as heterotrophs among the living organisms.
Posted by Sk V 5 years, 7 months ago
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Nishchay Gandhi 5 years, 7 months ago
Posted by Soud People 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Chlorophyll is a green coloured pigment found in plants. It is also called as the green blood of plants due to the fact that it has very similar chemical structure to Haemoglobin in human blood. It is a complex organic molecule, responsible for photosynthesis in plants and in some other organisms. All the organisms get food only because of chlorophyll in plants.
Along with preparation of food in plants, chlorophyll is also used for various purposes like: Chlorophyll is also a natural detoxifier and a potent antioxidant. Chlorophyll is useful in the removal of certain heavy metals from our bodies, by a process known as 'chelation.'
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Posted by Vishakha ??? . 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Similarity: Both Amoeba and human beings are heterotrophs and derive nutrition from other organisms.
Dissimilarity: Human beings have a complex digestive system and different nutrients are digested in separate regions. Amoeba does not have a digestive system and all the nutrients are digested in the food vacuole.
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Preksha B.M 5 years, 7 months ago
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