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Jun 22, 2023 · In this session, I will continue with the Life Processes chapter of class 10.Chapter 5 "Life Processes" Playlist : https://www.youtube.com/watch?v=FHmh8R9-a...
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- Class 10 Learn With Mansi
Get solutions of Class 10: ICSE Concise Chemistry Selina book 2024-25 Syllabus. Chapterwise solutions with answers as per latest marking scheme of ICSE to help students score more marks in Chemistry exam 2024.
Jul 3, 2023 · (1) It transports oxygen, carbon dioxide, nutrients, hormones ions, enzymes, waste products from one part to other. (2) They help in protection against diseases. (3) Helps to regulate body temperature. It consist of Arteries, veins, capillaries, blood and heart. They are thick walled, elastic blood vessels, carry blood from heart to other parts.
- Respiration
- Transportation in Human Beings
- Transportation in Plants
- Excretion in Humans
Introduction to Respiration
1. Respiration broadly means the exchange of gases. 2. Animals and plants have different means of exchange of gases. 3. At a cellular level, respiration means the burning of food to generate the energy needed for other life processes. 4. Cellular respiration may take place in the presence or absence of oxygen.
Respiration in Humans
1. The human respiratory system is more complex and involves breathing, the exchange of gases and cellular respiration. 2. A well-defined respiratory system helps with breathing and the exchange of gases. 3. Breathing involves the inhalation of oxygen and the exhalation of carbon dioxide. 4. The gaseous exchange takes place in the lungs, and oxygen is supplied to all cells of the body. 5. Cellular respiration takes place in each and every cell.
Respiratory System
1. The human respiratory system involves the nose, nasal cavities, pharynx, larynx, trachea/windpipe, bronchi, bronchioles and alveoli. 2. Bronchioles and alveoli are enclosed in a pair of lungs. 3. The rib cage, muscles associated with the rib cage and diaphragm all help in the inhalation and exhalation of gases. 4. The exchange of gases takes place between an alveolar surface and surrounding blood vessels. 5. Alveoli provide a large surface area for the exchange of gases.
Transportation
1. All living organisms need a few necessary components like air, water, and food for their survival. 2. On a regular basis, animals ensure these elements by breathing, drinking and eating. 3. The required elements are transported to their body cells and tissues by a transportation system. 4. In plants, the vascular tissue is responsible for transporting the substances.
Transportation in Humans
1. Transportation in humans is done by the circulatory system. 2. The circulatory system in humans mainly consists of blood, blood vessels and the heart. 3. It is responsible for the supply of oxygen and nutrients and the removal of carbon dioxide and other excretory products. 4. It also helps to fight infections.
Heart
1. The muscular organ which is located near the chest, slightly towards the left in the thoracic region. 2. The heart is the main pumping organ of the body. 3. The human heart is divided into four chambers which are involved in the transportation of oxygenated and deoxygenated blood. 4. The upper two chambers are called atria, whereas the lower two chambers are called ventricles. To know more about Human Heart, visit here. 1. The flow of blood through the heart is as follows:
Transportation in Plants
1. Transportation is a vital process in plants. 2. The process involves the transportation of water and necessary nutrients to all parts of the plant for its survival. 3. Food and water transportation takes place separately in plants. 4. Xylem transports water, and phloem transports food. To know more about Transportation in Plants, visit here.
Phloem
1. The phloem is responsible for the translocation of nutrients and sugar, like carbohydrates, produced by the leaves to areas of the plant that are metabolically active. 2. Sieve tubes, companion cells, phloem fibres, and phloem parenchyma cells are the components of this tissue. 3. The flow of material through the phloem is bidirectional.
Translocation
1. The transport of food in the plant through phloem via a process such as mass flow is called translocation. 2. Photosynthates, i.e. sugars and organic molecules such as amino acids, organic acids, proteins and inorganic solutes like potassium, magnesium, nitrate, calcium, sulfur and iron from source tissues (mature leaves) to the sink cells (areas of growth and storage) are transported through the phloem. 3. Material like sucrose is loaded from leaves to phloem using the energy of ATP. 4. S...
Excretion
1. Organisms like animals have an advanced and specialized system for excretion. 2. But plants lack a well-developed excretory system like that in animals. 3. They do not have special organs for excretion, and thus excretion in plants is not so complex.
Excretion in Unicellular Organisms
1. In unicellular organisms such as amoeba and bacteria, the waste product is removed by simple diffusion through the general body surface. 2. Unicellular organisms like the amoeba and paramecium excrete excess through tiny organelles called contractile vacuoles. 3. Undigested food in unicellular animals is excreted when the food vacuole merges with the general body surface and opens to the outside.
Excretory System of Humans
1. The excretory system in humans includes 1.1. a pair of kidneys, 1.2. a pair of ureters, 1.3. a urinary bladder and 1.4. urethra. 2. It produces urine as a waste product. To know more about Human Excretory System, visit here.
Presenting to you Class 10 CBSE Handwritten Notes and Previous Year Questions of Science of Chapter 6, Transportation (Life Processes). With the increasing amount of typed material on the internet, handwritten notes and material are still closest to our heart.
What is translocation? The transport system of soluble substances like sugars, amino acids and hormones by the phloem is called translocation. What are the substances translocated in the phloem? The phloem translocate the food manufactured by the leaves, the hormones and the minerals ions from the falling leaves to the other regions of the plant.
Transportation is through body fluids which can be either intracellular or extracellular. Extracellular fluid includes blood, lymph, cerebrospinal fluid (CSF) etc. Blood is a connective tissue that is the most common body fluid in complex multicellular organisms.
