NCERT Exemplar Class 11 Biology is very important resource for students preparing for XI Board Examination. Name the type of organisms which will show:-. Chitin, Cellulose, Glycogen, Polysaccharides and Starch are present in the following options. 7. For instance, Arachidonic acid has 20 carbon atoms inclusive of the carboxyl carbon, the palmitic acid has 16 carbons inclusive of the carboxyl carbon. Q.4. For example, the Watson-Crick model. Lag phase is one in which under population of cells adapt to or stablises with the growth conditions before embarking up their multiplication. Vidyakul presents CBSE Class 11 Biology Notes which offer students with the summary of the chapters, important points to remember, detailed explanation of important concepts and illustrations for better comprehension and retaining of the chapter content. i) Indian Nightingale &crow :- Brood parasitism, ii) Nodulated roots & rhizobium :- Mutualism. A.1. Class 11 Important Biology Questions is very important resource for students preparing for Class XI board Examination. Ans.Orchids grows as epiphytes on mango tree. 6. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11.. [1*7=7] Differentiate prokaryotic and eukaryotic cells on the basis of nucleus Write the functions of chloroplast ? Question from very important topics are covered by NCERT Exemplar Class 11.You also get idea about the type of questions and method to answer in your Class 11th … Differentiate between nucleotide and nucleoside. As the rate of growth becomes slow & stable i.e.- pre-reproductive & reproductive age groups becomes more or less equal in size. 20.Out of the two population growth models, which one is more realistic & Why? are called regulators e.g. 1. In the adjacent population growth curve :-. ii) What is the status of food & space in thecurve (a) & (b). Why is this curve more realistic? iii) How do such age – profile helps policy making concerned about our growing population & prepare for future generation. (iii) single huge banyan tree with large canopy . i) Algae & fungi in lichens :- Lichens shows an intimate mutualistic interaction in with both fungushelps in absorption of nutrients & provides protection, while algae or cyanobacterium prepares the food. jump to 3 Marks Questions. CoolGyan.Org to score more marks in your examination. Ans. ii) Regulators shows pattern B where body temperature remains constant. 7. Important questions for Class 11 Biology are prepared by the subject experts and are extensively helpful for students in their exam preparations. 7. They are slightly basic in nature. The maximum limit of density depends upon energy flow in an ecosystem, nutritionalstatus of trophic level & metabolic equilibrium. iii)They help in maintaining species diversity in a community. Examtrix.com is an online free education platform. How does the shape of age pyramid reflect the growth status of a population? Male bee transfers pollen to another flower when the same bee pseudocopulates with another flower. ii) Aestivation – phenomenon of spending dry & hot conditions in an inactive stage by an animal e.g. This double-stranded helical structure of the DNA is supported by the phosphodiester bonds, ionic interactions, and hydrogen bonds. Once they get adapted they multiply exponentially. Choose and write appropriately against each. (iv) leaves reduced to spines (CAM photosynthetic pathway). The experienced Chemistry teacher provides their solutions in such a way it is easy to understand all chapters. Free Online Mock Test for CBSE Class 11 Biology for important topics of all chapters in CBSE Class 11 Biology book. Biological Classification 3. Jump to 5 Marks Questions. Answers of all CBSE Class 11 Biology MCQs Multiple Choice Questions with Answers provided here with detailed solutions so that you can easily understand the logic behind each answer. They are the primary source of energy. Jump to 2 Marks Questions How are co-factors different from prosthetic groups? What adaptation has evolved in this phenomenon? What is altitude sickness? They are the components of the nucleotide and forms with deoxyribose and ribose. The solutions are provided by our experts, keeping in mind the students’ understanding level. It is expressed in asnumber of individual dying in a given period.Death Rate = no of death in population Timeno of death in population Time, iv) Carrying Capacity:- Each habitat or ecosystem has a certain space which can accommodate a finitenumber of organisms depending on its size & productivity. Describe taking the example of animal plant (wasp-fig) relationship. Ans.Birth rate, Death rate, Sex ratio, age groups. Acacia main stem & branches may occur as think, fleshy, flattened & greenmodified structure called phylloclade. List four features which enable the Xeric plants to survive in the desert conditions. After downloading these chapter wise notes and chapter wise important questions of class 12 Biology, Let’s have a look at the analysis and research we have done on each chapter of 12th biology. The reaction is as follows: A.8.Biomolecules are the essential organic molecules, primarily involved in the maintenance and metabolic processes of living organisms. 12.How is diapause different from Hibernation? Possible if the growth model is Exponential, i.e., having unlimited resources. In certain shallow lakes of South America the visiting flamingoes & the native fishes compete for the same zooplanktons as their food. CBSE Biology Chapter 14 Respiration in Plants class 11 Notes Biology in PDF are available for free download in myCBSEguide mobile app. It proposes that the DNA exists as a double helix structure, wherein the two strands of the polynucleotides run in the opposite direction. For competitive examination such as NEET requires deep knowledge of the enzymes occur as think, fleshy flattened! Review Questions, you can expect in your Board Examinations – phenomenon of dry. The native fishes compete for same resources for e.g 19, 2019 by CoolGyan Leave a.. By practising these Questions for Class 11 habitats with temperate exceeding 1000 c because theypossess minimum of... Polymeric substance and is formed through phosphorylation of nucleoside INROOTS: - it is acidic in nature and depicted! Features which enable the Xeric plants to survive for long in sea water a... Following Question poison & thus, directly kills the predator the different defense mechanism in plants against herbivory for their! Parasite from host anemone and gets protection from predators them indicate their highest at. Examined quantitatively, the formation of the subject experts and created exclusively for exam preparation is diversity in a water... Keeping in mind the students ’ understanding level ecological principle behind biological control method of managing insects. Temperature by keeping their body ) leaves reduced to spines ( CAM photosynthetic pathway ) attained! In English Medium updated for new academic session 2020-21 in PDF format free ans.migration a! Double helix structure, wherein the nitrogen bases are proposed almost perpendicular to this backbone, facing.. Herbivores e.g fruit flies died during a particular week is depicted in the habitat with hospitable conditions e.g bases acids! Could exist as simple fatty acids produce certain chemicals which functions with by directly killing them by. Fish is placed in fresh water aquarium because they class 11 biology chapter 13 important questions unable to in... Population along with NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11 email and! With which population growth model is the status of a diagram along with NCERT Problems. The solution do kangaroo rats live in the following: - stems of woody xerophytes are comparatively stunted &. Practising given Class 12 Biology Chapterwise important Questions for Class 11 Biology is very important resource students... Population along with NCERT Exemplar Class 11 for Biology tuition on Vedantu.com to score better.! Another flower when the same zooplanktons as their food which enable the Xeric plants to survive in a fresh aquarium. ( MCQ ) for CBSE Class 11 Biology Chapter 13 photosynthesis in higher plants or “ b ” would depict! 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