Nutrition- The process in which an organism takes in food, utilizes it to get energy, for growth, repair and maintenance, etc. It is the structural and functional unit of kidneys. The water moves up creating a column of water that is steadily pushed upwards in vessels and tracheids of the roots, stem and leaves, and are interconnected to form a continuous system of water-conducting channels reaching all parts of the plant. Answer Haemoglobin is the respiratory pigment that transports oxygen to the body cells for cellular respiration. The effect of root pressure for transportation in plants is more important in night while during day time transpiration pull becomes the major driving force. Fats are digested in the small intestine.
Where does this process take place? Because of transpiration, a suction pressure is created as a result of which water is forced into the xylem cells of roots. Since the content of O 2 in air is high, the terrestrial animals do not have to breathe faster to get more oxygen. Pseudopodia also help amoeba in locomotion. Answer Plants can get rid of excess of water by transpiration. What are the necessary conditions for autotrophic nutrition and what are its by-products? Answer Warm-blooded animals such as birds and mammals maintain a constant body temperature by cooling themselves when they are in a hotter environment and by warming their bodies when they are in a cooler environment. In this acidic medium, enzyme pepsinogen is converted to pepsin, which is a protein-digesting enzyme.
What criteria do we use to decide whether something is alive? Roots absorb the water from the soil by actively taking up ions, creates the difference in the concentration of these ions between the root and the soil. Question 5: How is the small intestine designed to absorb digested food? These processes do not occur. It creates a suction pull, which pulls water from the xylem cells of roots. Answer Any visible movement such as walking, breathing, or growing is generally used to decide whether something is alive or not. Functions of blood- i Transport of respiratory gases. Solution: The components are 1 Xylem:helps to conduct water and minerals obtained from the soil to the rest of the plant.
Transport in xylem occurs with the help of simple physical forces such as transpiration pull. This phenomenon is known as corrosion. What is the role of the acid in our stomach? Answer Haemoglobin transports oxygen molecule to all the body cells for cellular respiration. Solution: i Mouth: Food is ingested taking of food or liquid into the body , chewed and swallowed. From the blood stream, the absorbed food is delivered to each and every cell of the body.
Therefore their body temperature varies with the temperature of the environment. Schematic diagram of blood circulation in humans. Nephron is the structural and functional unit of Kidney. Formation of lactic acid in muscles causes cramp. Answer 5: Materials used in photosynthesis are a Carbon Dioxide and b Water. Night time — Only respiration takes place. Distinction between autotrophic and heterotrophic nutrition: 2.
Likewise, the topic Transportation describes the process of Transportation in Human being and Transportation in Plants. Answer Autotrophic nutrition takes place through the process of photosynthesis. The energy demand of human beings is too large and hence it is necessary for the separation of oxygenated and deoxygenated blood to meet this energy demand. What are the functions of these components? Question 5: How is food transported in plants? The xylem cells of roots stem and leaves are interconnected to form a conducting channel that reaches all parts of the plant. Visit to Main Page or move to of the page.
Students must try to get appropriate answers to all these questions as it will help to get a thorough understanding of each topic and gain confidence to solve other related problems in the examinations. When there is outflow of water from guard cells, the outer thin walls come to their original position resulting in closure of stomatal pore. Name some organisms that use the anaerobic mode of respiration. The transport system of higher plants consists of xylem and phloem. In other words, we tend to think of some sort of movement, either growth-related or not, as common evidence for being alive. Visit to Main Page or move to of the page.
This forms the breathing cycle taking in air and given out air is rhythmic. Alveoli are the site of gaseous exchange. The xylem in plants are responsible for a transport of water. Answer 3: Emulsification means a fine dispersion of one liquid in another. Water enters the root cells. If mucus is not released, it will lead to erosion of inner lining of stomach, leading to acidity and ulcers.
If the amount of water and dissolved wastes in boy are more than amount of urine will be more and if amount of wastes is less the amount of urine produced will be less. Carry blood away from the heart. In these videos explanation is given in Hindi. Answer Fats are present in the form of large globules in the small intestine. Some oxygen is carried in dissolved state in blood plasma. For the other questions please visit to or or or or or go for Solutions.
The left side of the heart receives oxygenated blood from lungs which is pumped further and sent to all the parts of the body through blood vessels. Question 22 The kidney in human beings is a part of the system for a Nutrition. Hence, it is mostly transported from the body tissues in the dissolved form in our blood plasma to lungs where diffuses from blood to air in the lungs and then expelled out through nostrils Question 13 How are lungs designed in human beings to maximize area for exchange of gases? How is food transported in plants? To demonstrate the process of transpiration in plants. Water first splits to release oxygen and hydrogen. There are three pairs of salivary glands located in the mouth. For the other questions please visit to or र or or or or go for Solutions. Solution: Transport of oxygen Transport of carbon dioxide The respiratory pigments hemoglobin present in red blood cells takes up the oxygen from the air to lungs.