(i)An essential part of the body is the lungs. The passage within the lungs separates into successively smaller tubes that ultimately come to an end in balloon-like structures known as alveoli.(ii)The surface provided by the alveoli allows for the exchange of gases. Typically, a dense network of blood arteries can be found inside the alveoli\’s walls. …
Oxygen (O2) and Carbon dioxide(CO2) are transported in humans through the bloodstream. Oxygen is carried to the cells, whereas carbon dioxide is carried away from the cells. The exchange of gases in the alveoli of the lungs and the surrounding blood capillaries. Oxygen is absorbed by the blood capillaries from the lungs’( oxyhaemoglobin ) alveoli …
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Glycolysis, a process that breaks down glucose into two 3-carbon molecules termed pyruvate, takes place in the cytoplasm. Various processes in different organisms lead to further breakdown.
Aquatic organisms use oxygen that has been dissolved in water, whereas terrestrial organisms use the oxygen present in the air. In comparison to oxygen in water, the atmosphere has a higher concentration of oxygen. Therefore, although aquatic organisms must breathe more quickly to receive the necessary oxygen, terrestrial organisms do not.
The small intestine has tiny projections called as microvilli that increase the surface area and improve absorption. Numerous blood arteries in the villi take in digested food and transport it to the bloodstream. Each part of our body receives nutrition via the blood.
Complex food molecules are broken into simpler ones by digestive enzymes. This will simplify and improve the process of food absorption. Absorbed food is transported to all parts of the body by the blood.
(i) HCl present in the stomach dissolves food particles and creates an acidic medium. (ii) In an acidic condition , protein-digesting enzymes, pepsinogen, are converted into pepsin. (iii) HCl in the stomach also acts as a protective barrier against many disease-causing pathogens. (iv) Breakdown the wall of the bolus. (v) Food converted into Chyme.
Plants require the following raw material for photosynthesis: (i)CO2 is obtained from the atmosphere through stomata. (ii)Plant roots take up water from the soil.(iii)The raw material for photosynthesis is sunlight, water, and chlorophyll.(iv)Roots of plants can receive nutrients from the soil.
The differences between autotrophic nutrition and heterotrophic nutrition Autotrophic Nutrition Heterotrophic Nutrition Organism prepares its own food and is not dependent on any other organism. Raw material of Food preparation CO2, water, and sunlight. Chlorophyll ( green pigment ) is required for food preparation. Green plants and certain bacteria have autotrophic modes of nutrition. An …
What are the differences between autotrophic nutrition and heterotrophic nutrition? Read More »
The sustaining of life depends on processes such as digestion, respiration, excretion, circulation, and transportation.
