CBSE Class 11 Biology Notes Chapter 1: Here we have provided you the CBSE chapter 1 biology class 11 notes so that you can prepare better for your upcoming exams.
Since these tests are administered by the central board authority in March and April, the CBSE board is the central board that administers board exams for classes 10 and 12. One of the most prominent and established school boards in India is the Central Board of Secondary Education (CBSE).
The NCERT textbooks serve as the primary basis for the CBSE class 11 biology syllabus, as referenced in the question papers. For that reason, the question papers for all competitive exams are set by NCERT.To differentiate whether an organism is living or not, various characteristics need to be checked in the case of living organisms.
The characteristic of living organisms is given below -
GROWTH
Any living thing can grow and expand, which increases the mass and quantity of cells in the body. Cell division is how multicellular creatures proliferate. Plants and animals grow because of the process of cell division. In plants, cell division happens continuously throughout their existence, however in mammals, cell division happens only until a specific age at which point the cells lose their ability to divide.METABOLISM
Because the body and its organs are made of numerous chemicals, they carry out a variety of metabolic processes that transform chemicals into other biomolecules. Every animal, including bacteria, and plants, has a metabolism. In non-living creatures, it is absent, but it can be added using the in-vitro technique.SENSITIVITY
All living things, including prokaryotes and eukaryotes, react to their environment and external stimuli, which might be chemical, biological, or physical. Living things respond appropriately to their stimuli and are sensitive to their surroundings. There are three types of stimuli: chemical, physical, and biological.REPRODUCTION
The process of reproduction, which is only seen in living things, is the capacity to create offspring. Fungal reproduction happens through spores, whereas hydra reproduction happens through budding, and planaria reproduction happens through regeneration.CELLULAR ORGANIZATION
As all living things are composed of cells that aid in carrying out different cellular tasks leading to the growth and development, reproduction, metabolism, etc. in the body, the cellular organisation is the defining feature of all living things. Non-living things lack cellular organization since they are not composed of cells.MOVEMENT
All of the lining organisms can move, and plants in particular follow the path of the sun. Example: A candle's flame and a crystal's crystal do not move, but mango trees may be seen to move, grow, and develop as well as reproduce, which leads to the production of additional trees from their seeds. Mango trees are therefore considered to be alive since they exhibit movement, in contrast to crystals and candles, which do not. Living things are also those that possess awareness and consciousness of their environment.TAXONOMY
Taxonomy is a scientific field that involves the study of the identification, nomenclature, categorization, and characterization of species. Another field of research that looks at an organism's taxonomy, nomenclature, identification, and evolutionary history is called systematics.Study without using the internet
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