Chapter No. 18 Pharmacology

Posted Posted in Biology 10

Pharmacology is the study of drug composition, properties and medical applications. The sources of drugs are also studied in pharmacology. Clinical pharmacology was present in the Middle Ages. Early pharmacologists focused on natural substances, mainly plant extracts. Pharmacology developed in the 19th century as a biomedical science. Any substance that, when absorbed into the body […]

Chapter No. 17 Biotechnology

Posted Posted in Biology 10

Humans have been making use of biotechnology since they discovered farming. This use extended from the planting of seeds to the control of plant growth and crop production. Animal breeding is also a form of biotechnology. Cross-pollination of plants and cross-breeding of animals were major techniques in biotechnology. These techniques were used to enhance product […]

Chapter No. 16 Man and His Environment

Posted Posted in Biology 10, Chapter No.16

Every organism has its specific surrounding or environment with which it continuously interacts and remains fully adapted. An organism’s environment is the sum of physical (abiotic) and biological (biotic) conditions which influence that organism. The study of the interrelationship between organisms and their environment is called ecology. Levels Of Biological Selection In ecology, the levels […]

Chapter No.15 Inheritance

Posted Posted in Biology 10, Chapter No.15

For much of human history , people were unaware of the scientific details of how babies got the characteristics of their parents. People had always thought that there was some hereditary connection between parents and children, but the mechanisms were not understood. Many answers to the questions about how offspring get the characteristics from their […]

Chapter No. 14 Reproduction

Posted Posted in Biology 10, Chapter No.14

Reproduction Reproduction is defined as the production of individuals of the same species i.e. the next generation of species. While it is one of the fundamental characteristics of living things, it is not an essential life process. Reproduction is thus essential for the continuation of species. It ensures that the genetic material of one generation […]

Chapter No. 12 Coordination and Control

Posted Posted in Biology 10, Chapter No.12

The tissues and organs in the bodies of multicellular organisms do not work independently of each other. They work together performing their many tasks as the needs of the whole body. This means that these activities are coordinated. Coordination also enables the organism to respond to happenings in the world around it. One familiar example […]

Chapter No. 11 Homeostasis In Plants

Posted Posted in Biology 10, Chapter No.11

Homeostasis may be defined as the maintenance of the internal conditions of body at equilibrium, despite changes in the external environment. For example, the core temperature of human body remains at about 37°C despite fluctuations in the surrounding air temperature. Similarly, the blood glucose level remains about 1g per litre despite eating a meal rich […]

Chapter No. 10 Gaseous Exchange

Posted Posted in Biology 10, Chapter No.10

We have studied how cells generate ATPs from food. Cellular respiration is the process in which the C-H bonds in food are broken by oxidation reduction reactions and thenergy is transformed into ATP. In aerobic respiration, oxygen is used and there is complete oxidation of the food material. Carbon dioxide and water are also produced […]

MCQ Full Book Test 20

Posted Posted in Biology 10, MCQ Full Book

Student’s Name:____________Admission No.______Roll No._____Section:______ Paper: Biology  Class: 10                    Time Allowed:    One Hour                           Marks: 12  Checked by:_______________ Rechecked by:_____________ Sign Invigilator:_____________ Q1. Circle the correct answer.  (12) 1.A thick muscular layer beneath lungs is called […]

MCQ Full Book Test 19

Posted Posted in Biology 10, MCQ Full Book

Student’s Name:____________Admission No.______Roll No._____Section:______ Paper: Biology  Class: 10                    Time Allowed:    One Hour                           Marks: 12  Checked by:_______________ Rechecked by:_____________ Sign Invigilator:_____________ Q1. Circle the correct answer.  (12) 1.Arthropoads have _____________ type of skeleton? a) Hydroskeleton  […]

MCQ Full Book Test 18

Posted Posted in Biology 10, MCQ Full Book

Student’s Name:____________Admission No.______Roll No._____Section:______ Paper: Biology  Class: 10                    Time Allowed:    One Hour                           Marks: 12  Checked by:_______________ Rechecked by:_____________ Sign Invigilator:_____________ Q1. Circle the correct answer.  (12) 1.The production of sperms in testes is called […]