MICROBES IN HUMAN WELFARE
MICROBES IN HUMAN WELFARE •Microbes have great diversity o protozoa, o bacteria, o fungi and o microscopic plant o viruses o viroids (infective ssRNA) o prions (proteinaceous infectious agents) MICROBES IN HOUSEHOLD PRODUCTS: ●LAB (LACTIC ACID BACTERIA): •Grow in milk and […]
SEXUAL REPRODUCTION IN FLOWERING PLANTS CLASS 12 |Angiosperm |phanerogams
SEXUAL REPRODUCTION IN FLOWERING PLANTS 1.Angiosperm is a flowering plant. 2.Flower is the reproductive unit. 3.Male reproductive organ: Androecium. 4.Female reproductive organ :Gynoecium. 5. ANDROECIUM : ●It consists of a whorl of stamens . ●Stamen is consist of filament ( long stalk ) & anther . ●Anther is bilobed structure . […]
CHEMICAL COORDINATION AND INTEGRATION IN LIVING ORGANISMS
CHEMICAL COORDINATION AND INTEGRATION https://www.facebook.com/sciencegajab/ visit for fb page CHEMICAL COORDINATION AND INTEGRATION IN LIVING ORGANISMS ARE PRIMARILY DONE BY ENDOCRINE GLANDS HORMONES ARE • Non-nutrients chemicals • Intercellular messengers • Produced in trace amount. • Generally endocrine gland secretions are Hormones but some chemicals also considered as hormones which are not produced by endocrine glands. […]
NEURAL CONTROL AND COORDINATION
NEURAL CONTROL AND COORDINATION 1. The neural system Function –> coordinates and integrates @ To maintain Homoeostasis therefore it is called neural control and coordination. 2. The neural system and the endocrine system jointly coordinate and integrate all the activities of the organs –> in a synchronised fashion. 3. The neural system –> An organised […]
PHOTOSYNTHESIS IN HIGHER Plants
PHOTOSYNTHESIS IN HIGHER Plants 1. PHOTOSYNTHESIS IS A PHYSIO-CHEMICAL PROCESS by which green plants use light energy to drive the synthesis of organic compounds. 2. PHOTOSYNTHESIS IS IMPORTANT DUE TO TWO REASONS: o it is the primary source of all food on earth and o it is also responsible for the release of […]
MINERAL NUTRITION IN PLANTS | CRITERIA FOR ESSENTIALITY |MACRONUTRIENTS |MICRONUTRIENTS |DEFICIENCY SYMPTOMS OF ESSENTIAL ELEMENTS |TOXICITY OF MICRONUTRIENTS |NITROGEN METABOLISM |
MINERAL NUTRITION 1. IN 1860, JULIUS VON SACHS (GERMAN BOTANIST) –> Demonstrated, for the first time, that plants could be grown to maturity in a defined nutrient solution in complete absence of soil. 2. THIS TECHNIQUE OF GROWING PLANTS IN A NUTRIENT SOLUTION IS KNOWN AS HYDROPONICS. 3. Through hydroponics technique, impact of a specific minerals […]
Plant kingdom | Algae |Pteridophytes | Bryophytes- plant amphibians |Gymnosperm | Angiosperm | HAPLO-DIPLONTIC life cycle
PLANT KINGDOM 1. Kingdom plantae of Whittaker’s classification has o Algae, o Bryophyta, o Pteridophyta, o Gymnosperm & o Angiosperm. 2. PLANTS ARE o Autotrophic (chlorophyll bearing), o Eukaryotic, o Having cellulosic cell wall, o Tissue/organ level body organization. 3. ALGAE: o Chlorophyll-bearing, autotrophic o […]
PRINCIPLES OF INHERITANCE AND VARIATION |MENDEL’S WORK | MENDALIAN LAW OF INHERITANCE | INCOMPLETE DOMINANCE |CODOMINANCE |SEX DETERMINATION |MUTATION |PEDIGREE ANALYSIS |MENDALIAN DISORDERS
1.GENETICS is study of Inheritance & Variations in organism.
2. HERIDITY Transfer of information from one generation to next
MOLECULAR BASIS OF INHERITANCE | BUILDING BLOCK OF NUCLEIC ACID |TRANSCRIPTION |GENETIC CODE |GENE REGULATION |THE LAC OPERON |HUMAN GENOME PROJECT |DNA FINGERPRINTING
MOLECULAR BASIS OF INHERITANCE. NCERT Based & Simplified 1. Finding out the chemical responsible for Mendelian inheritance (factor), its structure,& How it works is MOLECULAR BASIS OF INHERITANCE. 2. DNA act as genetic material in all cellular organism either it is prokaryotic or eukaryotic. o RNA ACT AS GENETIC MATERIAL ONLY IN SOME VIRUSES. o […]