Category: NEET

17 BREATHING AND EXCHANGE OF GASES BREATHING AND EXCHANGE OF GASES Breathing The process of exchange of O2 from the atmosphere with CO2 produced by the cell is called breathing. It occurs in two stages of inspiration and expiration. During inspiration air enters the lungs from atmosphere and during expiration air leaves the lungs. Difference […]

16 DIGESTION AND ABSORPTION QUESTION CHAPTER NOTES What increases the use  of  physico  – chemical concepts and techniques:- A) Forward approach B) Reductionist approach C) Both D) None of these Majority of  physico  –  chemical  studies employed by employing:- A) Tissue model B) Cell free system C) Both D) None of these Now a day […]

16 DIGESTION AND ABSORPTION Digestion The process in alimentary canal by which the complex food is converted mechanically and biochemically into simple substances suitable for absorption and assimilation in the body of animals/ organisms. Alimentary canal begin with anterior opening mouth and opens out posteriorly through anus. It comprises of following parts: Mouth: Mouth leads […]

15 PLANT GROWTH AND DEVELOPMENT QUESTIONS PLANT GROWTH AND DEVELOPMENT QUESTIONS CHAPTER NOTES Development is A) Growth B) Differentiation C) Growth + differentiation D) Growth – differentiation Growth of living being is/are- A) Irreversible B) Increase in size C) Increase in weight D) All of these Swelling of piece of wood when placed in water […]

15 PLANT GROWTH AND DEVELOPMENT PLANT GROWTH AND DEVELOPMENT PRACTICE QUESTIONS Plant Growth and Development Root, stem, leaves, flowers, fruits and seeds arise in orderly manner in plants. The sequence of growth is as follows: Life cycle of plant: Plants complete their vegetative phase to move into reproductive phase in which flower and fruits are […]

14 RESPIRATION IN PLANTS QUESTIONS CHAPTER NOTES Respiration is defined as – A) Formation of C – C bonds of complex compound B) Breaking of C – C bonds of complex compound C) Breaking of C – N bonds of complex compound D) All of the above Respiration results finally to a formation and release […]

14 RESPIRATION IN PLANTS RESPIRATION IN PLANTS Respiration Respiration is an energy releasing, enzymatically controlled catabolic process which involves a step-wise oxidative breakdown of food substance inside living cells. Aerobic Respiration: Aerobic Respiration is an enzymatically controlled release of energy in a stepwise catabolic process of complete oxidation of organic food into carbon dioxide and […]

13 PHOTOSYNTHESIS IN HIGHER PLANTS QUESTIONS 13 PHOTOSYNTHESIS IN HIGHER PLANTS QUESTIONS Chlorophyll is the- A) Red pigment of leaf of all plants B) Blue pigment of leaf of all plants C) Green pigment of root of all plants D) None of these In an experiment where a part of leaf is enclosed in test […]

13 PHOTOSYNTHESIS IN HIGHER PLANTS PHOTOSYNTHESIS IN HIGHER PLANTS PRACTICE QUESTIONS Photosynthesis Photosynthesis is an enzyme regulated anabolic process of manufacture of organic compounds inside the chlorophyll containing cells from carbon dioxide and water with the help of sunlight as a source of energy. Historical Perspective Josheph Priestley (1770): Showed that plants have the ability […]

12 MINERAL NUTRITION PRACTICE QUESTIONS CHAPTER NOTES Hydroponics has been successfully employed as a technique for commercial production of (A) Vegetables such as tomato (B) Seedless cucumber (C) lettuce (D) all of these 12. MINERAL NUTRITION PRACTICE QUESTIONS Hydroponics was first time demonstrated by (A) Julius von Sachs, a prominent German botanist in 1860. (B) […]