Class 10 Science - TELANGANA
Transportation
The chapter 'Transportation' in Class 10 Science explores how essential substances like oxygen, food, water, and waste materials are moved within living organisms. For TSBSE board exams, students must understand the circulatory system in humans, including the structure and functioning of the heart, blood vessels, and the lymphatic system. It also covers the transport of water and minerals through xylem and food through phloem in plants. Mastering diagrams of the human heart and understanding transpiration will help you secure high scores in both objective and descriptive board questions.
Start Learning FreeKey Concepts
Xylem
Plant tissue responsible for the transport of water and dissolved minerals from the roots to the leaves and other parts of the plant.
Phloem
Plant tissue responsible for the translocation of food and organic nutrients synthesized during photosynthesis from leaves to other plant parts.
Double Circulation
A circulatory system where blood passes through the heart twice during each complete cycle, separating oxygenated and deoxygenated blood.
Blood Pressure
The pressure exerted by circulating blood on the walls of blood vessels, typically measured as systolic over diastolic pressure using a sphygmomanometer.
Transpiration
The loss of water in the form of water vapor from the aerial parts of plants, which creates a suction pull aiding water transport.
Important Formulas
Board Exam Info
In the Telangana (TSBSE) Class 10 Science board examinations, this chapter typically carries around 4 to 6 marks. Questions often include diagram-based questions on the human heart or excretory-circulatory connections, short-answer questions differentiating between xylem and phloem, and conceptual questions on transpiration and double circulation.
Frequently Asked Questions
Why is double circulation necessary in humans?
It allows complete separation of oxygenated and deoxygenated blood, which ensures a high-efficiency supply of oxygen to body cells to maintain high energy levels and body temperature.
What is the main difference between xylem and phloem transport?
Xylem transports water and minerals unidirectionally from roots to leaves using physical forces like transpiration pull, while phloem transports food bidirectionally using metabolic energy (ATP).
How does root pressure help in plant transport?
Root pressure is the positive pressure developed in the roots due to active absorption of ions, which helps push water up to small heights in herbaceous plants during night or early morning.
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