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TRANSPORT SYSTEMS

CONTENT

  1. Meaning of Circulatory System
  2. Types of Circulation and Circulatory Systems
  3. Mechanism of Transportation in Higher Animals
  4. Differences between Open and Closed Circulatory Systems
  5. Mechanism of Transportation in Multicellular Organisms
  6. Absorption of Water and Mineral Salts in Higher Plants

 

Meaning of Circulatory System

Circulatory system is the continuous flow of blood around the body, involving the heart and the blood vessels.

Types of Circulation and Circulatory Systems

Types of Circulatory Systems

  1. Open circulatory system
  2. Closed circulatory system

Types of Circulation

  1. Single circulation
  2. Double circulation
  3. Systemic circulation
  4. Pulmonary circulation

Mechanism of Transportation in Higher Animals

As a result of the repeated contractions of the heart, the blood circulatory system (i.e., arteries, capillaries and veins) throughout life. All mammals have double circulation. These are the systemic (body) circulation and pulmonary circulation.

  1. Systemic (body) circulation in which blood is carried from the left ventricle to all body parts except the lungs and back to the right auricle.

Lesson tags: Biology Lesson Notes, Biology Objective Questions, SS2 Biology, SS2 Biology Evaluation Questions, SS2 Biology Evaluation Questions First Term, SS2 Biology First Term, SS2 Biology Objective Questions, SS2 Biology Objective Questions First Term
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