NEET GURU

Biodiversity and Conservation Mind map Class 12 Chapter 15 NCERT Solutions To download PDF -  Click here to download PDF of Biodiversity and Conservation Mind map To join telegram -  Click here Question 1. Name the three important components of biodiversity. Ans. Different type of living forms like plants animals insects microbes etc together form biodiversity. Biodiversity can have 3 components - (i) Species diversity (ii) Genetic diversity (iii) Ecosystem diversity 2. How do ecologists estimate the total number of species present in the world ? Ans. Since there is very large number of organisms present on earth, it is impossible to count every Organism. Also many Organisms are present in very harsh habitats which are very hard to explore. So, Ecologists try to estimate the total number of species by looking for patterns in biodiversity. For example space is diversity decreases when we move from equator to poles. This pattern in diversity gives an estimate number of different...

Evolution Mind map for NEET and Class 12 Genetics unit NCERT Solutions For Class 12 Biology Chapter 7 Evolution Question 1. Explain antibiotic resistance observed in bacteria in light of Darwinian selection theory . Ans. According to Darwin's theory, organisms which develop favourable variations against a given situation, can survive. When we expose a population of bacteria to antibiotics, most of them die. However some bacteria which have  developed resistance against the antibiotics due to mutations will survive and reproduce. This can form all new population of bacteria which is resistant to an antibiotic. To download PDF -  Click here to download Evolution mind map PDF To join telegram -  Click here Question 2. Find out from newspapers and popular science articles any new fossil discoveries or controversies about evolution . Ans. A fossil of a cat-sized reptile that was closely related to an extinct group of flying reptiles known as pterosaurs has been unearthed in Sc...

PDF of the Mind Map if given at end of this page 👇👇 NCERT Solutions for Class 11 Chapter Transport in plants - Question 1- What are the factors affecting the rate of diffusion? Answer: Factors affecting diffusion are -  Concentration gradient, Permeability of membrane; separating the substance, Temperature and Pressure. Question 2 - What are porins? What role do they play in diffusion? Answer: Special type of protein called Carrier proteins form porin channels in the outer membranes of plastids, mitochondria and some bacteria. The porin channels allow the molecules to pass through membrane. Molecules stick to the transport protein and are transported by facilitated diffusion. Question 3 - Describe the role played by protein pumps during active transport in plants. Answer: Protein pumps are used to transport substances against a concentrations gradient. This is a type of active transport. Active transport is carried out by membrane proteins. Pumps are proteins which use energy to ...

Ecosystem Mind map for NEET and Class 12 Biology Chapter 14 - PDF of mind map👇👇 To download PDF -  Click here to download Ecosystem mind map PDF To join telegram -  Click here NCERT Solutions for Class 12 Biology Chapter 14 Ecosystem 1. Fill in the blanks. (a) Plants are called as————- because they fix carbon dioxide. (b) In an ecosystem dominated by trees, the pyramid (of numbers) is————- type. (c) In aquatic ecosystems, the limiting factor for the productivity is————- . (d) Common detritivores in our ecosystem are————- . (e) The major reservoir of carbon on earth is————- . Ans: (a) Autotrophs (b) Spindle (c) Sunlight (d) Earthworm, bacteria & fungi of decay and vulture (e) Oceans 2. Which one of the following has the largest population in a food chain? (a) Producers (b) Primary consumers (c) Secondary consumers. (d) Decomposers Ans: (d) Decomposers has the largest population in a food chain. 3. The second trophic level in a lake is- (a) Phytoplankton (b) Zooplankton (c...