10th Class Biological Science

Title: General Science (Paper-II) – Biological Science (జీవశాస్త్రం) – Class 10.

Introduction: This textbook acts as a bridge to higher secondary education, moving students toward an understanding of the complex internal "systems" of living organisms. It focuses on how life is sustained through continuous processes like metabolism, coordination, and heredity, emphasizing the interdependence between humans and the environment.

Key Points:

• Nutrition: Explores the "food supplying system," detailing photosynthesis in plants and the human digestive system, including the roles of various enzymes.

• Respiration: Covers the "energy releasing system," differentiating between aerobic and anaerobic respiration and describing the pathway of air through the respiratory system.

• Transportation: Details the "circulatory system," focusing on the structure of the human heart, blood vessels (arteries, veins, capillaries), and the transport mechanism in plants.

• Excretion: Investigates the "waste disposing system," primarily the human excretory system (kidneys, nephrons) and how plants manage waste products.

• Coordination: Explains how the nervous system and endocrine glands (hormones) act as a "linking system" to respond to internal and external stimuli.

• Reproduction: Covers the "generating system," including asexual and sexual reproduction, flower structure, and human reproductive health.

• Heredity & Evolution: Introduces Mendelian genetics, inheritance of traits, and the evidence supporting the theory of organic evolution.

• Environmental Concern & Natural Resources: Discusses ecological balance, the impact of human activities, and the sustainable management of resources like water and soil.