ISC Previous Year Question Papers Class 12 Biology Join BYJU'S Learning Program Grade/Exam Class 1 Class 2 Class 3 Class 4 Class 5 Class 6 Class 7 Class 8 Class 9 … The salient features of NAD+ synthetase as well as NAD+ kinase are likewise presented. Q 1. The Kingdoms Monera, Protoctista and Fungi BIOLOGY MODULE - 1 Diversity and Evolution of Life 30 Notes 2.1 KINGDOM MONERA z Includes the bacteria and cyanobacteria (commonly called blue-green algae). They contain 70S ribosomes. 15. Cyanophyta has a size of about 1-60 lm. Both the algae and the fungi live in symbiotic association with each other. All groups of algae including cyanobacterra have chlorophyll a as a common photosynthetic pigment. (i) Their size ranges from 0.1-0.5 pm and have organised nucleus, plastids, mitochondria and other organelles are absent. Salient Features of Pinus. - 17183631 Scyphozoa, 3. Ex. Characteristics of the Cycads. Characteristics of Cyanobacteria: They are bluish because they have more blue pigments called c­phycocyanin. fresh water biology, marine biology, sociobiology, veterinary science and It lacks organelles like mitochondria, lysosomes, plastids, Golgi bodies, endoplasmic reticulum, centrosome, etc. The majority of blue-greens are aerobic photoautotrophs: their life processes require only oxygen, light and inorganic substances. Cyanobacteria are photosynthetic bacteria that share some properties with algae and are found naturally in lakes, streams, ponds, and other surface waters. Cancer Modeling. Cyanobacterial photosynthetic membranes contain two photosystems, of which PSII mediates the extraction of electrons from water, the initial electron donor, to the plastoquinone pool. Scientific method is concerned with the realities that are observable through "sensory experiences." The ecosystem consists of two major components: (1) Abiotic or Non-living components: The abiotic component comprises of: Physical factors: These include the climatic or environmental conditions of a given region such as air, water, soil, light, temperature, relative humidity, pH etc. • Discussion revolves around a specific subject. Conversion of quinolinate and 5'-phosphoribosyl-1'-pyrophosphate to NAD+ and diphosphate by phosphoribosyltransferase is then explored before proceeding to a discussion the molecular and kinetic properties of NMN adenylytransferase. Reproduction is by both asexual and sexual methods. It has now been firmly established that mitochondria and plastids, the classical membrane-bound organelles of eukaryotic cells, evolved from bacteria by endosymbiosis. Third, we require a capstone project in which teams of students examine a protein-nucleic acid complex and then use the software tools to illustrate for their classmates the salient features of the structure, relating how the structure helps explain biological function. Science Textbooks - Biology For Classes IX & X : Salient Features : • Systematic presentation of facts facilitated with relevant examples with ample diagrams. Learner Connects Explanations to Scientific Knowledge. It is a longitudinal, cartilaginous rod running between the nerve cord and the digestive tract. They were formerly categorized as a sub-kingdom of kingdom Plantae. Spirogyra has many common names, including blanket weed, water silk, mermaid`s tresses, etc. Roots: Fibrous tap root often develops nodules in herbs. Cyanobacteria are the only prokaryotes to have evolved oxygenic photosynthesis, transforming the biology and chemistry of our planet. This class of bacteria obtains energy through the process of photosynthesis . Thallophytes are a polyphyletic group of non-mobile organisms that are grouped together on the basis of similarity of characteristics but do not share a common ancestor. 2. Cyanophyta body shape is round and there is no form of yarn (filament). Characteristics of a cloning vectors. They are known as extremophiles, as they are able to live in a variety of environment. Hence, cyanobacterial species are catching attention as a reliable candidate for the remediation and separation of hazardous water contaminants. Around since before the … K. Sivonen, in Encyclopedia of Microbiology (Third Edition), 2009 Cyanobacteria: General Description. Cyanobacteria may be unicellular, colonial or filamentous. if one strand … Viruses are obligate intracellular parasites and infect all the major biological groups-animal, plants and bacteria. For example, currently in High School, Biology is taught in 2nd Year, Chemistry in 3rd Year, and Physics in 4th Year. This ensures a mastery of knowledge and skills after each level. FAMILY 3: Fabaceae – Characters , Floral formula & Species. If you have any query regarding NCERT Solutions for Class 11 Biology at Work Chapter 2 Biological Classification, drop a comment below and we will get back to you at the earliest. Body of the bacteria is covered by a cell wall. It consists of two polynucleotide chains where the sugar and phosphate group form the backbone and the nitrogenous bases project inside the helix. Also called cyanobacteria, these organisms live in moist or aquatic environments just like other algae. 7Department of Biology, University of Richmond, Richmond, VA 23173-0001 (rdesa@richmond.edu); 8Department of Biodiversity and Conservation Biology, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa (achanning@uwc.ac.za); 9Department of Zoology, The Natural History Museum, Cromwell Road, Radial symmetry is the symmetry of a wheel (4) All the members of this phylum are aquatic (5) They are solitary or colonial Most of the minerals that required for the proper function of a human life come from green plants, animals, and from drinking water. The name ‘Virus’ comes from the Latin word meaning ‘poison’ or ‘slimy liquid’. Minerals cannot be made by living organisms, rather it occurs in the Earth naturally. Salient Features of the course: Practice 6000+ questions with AUDIO SOLUTIONS for all 38 chapters in NEET Biology syllabus. • Maintain cordiality and free expression of thought and opinion. Integumentary System and an Overview of Human Organs(Ch. For example, currently in High School, Biology is taught in 2nd Year, Chemistry in 3rd Year, and Physics in 4th Year. What are the characteristic features of blue green algae6. the salient features of the comprehensive agrarian reform program (carp) specific lands covered by carp a. • Solved and Unsolved numerical problems related to formulae introduced. The cis and the trans faces are interconnected. Homeostasis Students should be able to: 1. The algal component of the lichens is known as phycobiont, while the fungal component is known as mycobiont. Salient features of viruses: 1. 3. – Unique Features – Salient Features (Characteristics) (Calcarea, Hexactinellida, Demospongia) Phylum Cnidaria (Coelenterata) – Introduction to Phylum Cnidaria – Brief history (Salient Features) – Classification of Coelenterata (1. University, Meerut Effective from the session 2009-2010 Course no. Nucleus: These organisms do not have a well-defined nucleus. 2) Gill slits one pair only. All alienable and disposable lands of the public domain devoted to or suitable for agriculture. Some have needle-like … Salient features: They consist of many flat, disc-shaped sacs or cisternae of 0.5 μm to 1.0 μm diameter stacked parallel to each other; The Golgi cisternae are concentrically arranged near the nucleus with distinct convex cis or the forming face and concave trans or the maturing face. Cell and Molecular biology (BOTTA XXIII, BOTPA XXIV) 12. 6.10 Cyanobacteria 6.10.1 enlist general characteristics of cyanobacteria; 6.10.2 describe the habitat, structure, nutrition and reproduction of nostoc; 6.10.3 describe the importance of cyanobacteria in terms of nitrogen fixation.

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