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A manufacturer claims that the average life time of an electronic component is at least 40 hours. A sample of 50 components average life time was calculated, and the decision was to reject the null hypothesis from the test statistic. Which of the following statements s..

A manufacturer reported that 95% of electronic components manufactured by them are free from defects. From a random sample of 80 components, 5 had defects. Find the p -value for the test. Is there enough evidence to reject the manufacturer's report at α = 0.01? =..

Electron transport chain refers to the light driven reactions of photosynthesis. They were first formulated in 1939 by Robert Hill. The two photosystems are connected in series with each other by the components of electron transport system. The reaction centres become ..

The metabolic pathway through which the electron passes from one carrier to another, is called the electron transport system. Electron Transport System (ETS) in Mitochondrion The electron transport system occurs in the inner membrane of the mitochondria. The ..

Applications of Ultrasound - It is used for medical diagnosis and therapy and also as a surgical tool. Bats and porpoises use ultrasound for navigation and to locate food in darkness. It is used to detect defective foetus. It is used as a tool in the treatment of muscular pain. Ultra sonography (is..

Atomic Number and Atomic Mass - The nuclei of atoms is made up of protons and neutrons. These two components of the nucleus are referred to as nucleons. The electrons occupy the space outside the nucleus. Since an atom is electrically neutral, the number of protons in the nucleu..

The nuclei of atoms are made up of protons and neutrons. These two components of the nucleus are referred to as nucleons. The electrons occupy the space outside the nucleus. Since an atom is electrically neutral, the number of protons in the nucleus is exactly equal to the numb..

E-waste What contributes to e-waste? Discarded electronic devices like televisions, personal computers, floppies, audio-video CDs, batteries, electric switches, telephones, air conditioners, cellphones, electronic toys, refrigerators, washing machines, dryers, kitchen utensi..

Lipids perform several important functions in biosystems. Phospholipids are the constituents of cell mebrane and regulate membrane permeability. Phospholipids are also used as detergents to emulsify fat for transport within the body. They act as cellular metabolic regulators. They prote..

Haemoglobin. On combining with oxygen, haemoglobin is converted to oxyhaemoglobin (H 6 O 2 ). The erythrocytes develop from the bone marrow. The life span of RBC is around 120 days. As the erythrocyte becomes older and older, the cell membrane becomes fragile and the old RBCs are disintegrated in t..