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GUJCET Biology Papers (2006-2022) in Gujarati | GSEB SCIENCE HUB

GUJCET Biology Papers (2006-2022) in Gujarati Exam Information Exam Duration: 3 hours Total Marks: 120 Question Paper Type : Multiple Choice Questions Negative Marking: yes 0.25 mark will be deducted for every incorrect answer. GUJCET Exam Syllabus Biology Reproduction in Organisms Sexual Reproduction in Flowering Plants Organisms and Populations Reproductive Health Principles of Inheritance and Variation Microbes in Human Welfare Evolution Human Health and Diseases Molecular Basis of Inheritance Strategies for Enhancement in Food Production Human Reproduction Biotechnology – Principles and Processes Biotechnology and its Application Environmental Issues Ecosystem Biodiversity and its Conservation GUJCET Exam Need document You need an Email id, Mobile number, Aadhaar card, family income information, net banking or debit card to pay online fees, a scanned photo, and a photo of your signature. This document is required to fill the form for GUJCET exam 2022. ...

Role of nutrients and their deficiency Symptoms | GSEB SCIENCE HUB

Role of nutrients and their deficiency Symptoms | GSEB SCIENCE HUB Nitrogen ▪️Impart green colour to plant encourages vegetative growth ▪️ Nitrogen is essential constituent of protein ▪️ Constituent of Protoplasm of chlorophyll and coenzyme. ▪️ Play important role in synthesis of auxin Deficiency ▪️ Lower leaves become yellow and dries. ▪️V shaped chlorosis on older leaves or yellowing at tip. Disease ▪️Starvation disease due to nitrogen deficiency. ▪️Buttoning in cauliflower. Phosphorous ▪️Increase the disease resistance. ▪️ Enhance new cell formation and necessary for root development. ▪️Required for grain formation and maturity of grains. ▪️Phosphorus is essential constituent for nucleic acid and phytin. ▪️Most essential functions are energy storage and transfer energy act as "energy currency". Deficiency ▪️Due to deficiency of single element the life cycle of plant can't be completed hence (Agricultureexamslibrary) Phosphorus is called " key of life " ▪️De...

Notes on Atomic Physics | GSEB SCIENCE HUB

Notes on Atomic Physics | GSEB SCIENCE HUB e/m of an electron (Thomson Method):- (a) e/m of a particle is called the specific charge of the particle. e/m = v/rB Here, r is the radius of curvature, B is the strength of magnetic field, v is the velocity, e is the charge on cathode ray particle and m is the mass. (b) v = E/B Electric field:- E = V/d Photo electric effect :- Photo-electric effect is the phenomenon of emission of electrons from the surfaces of certain substances, mainly metals, when light of shorter wavelength is incident upon them. Effect of collector’s potential on photoelectric current:- (a) Presence of current for zero value potential indicates that the electrons are ejected from the surface of emitter with some energy. (b) A gradual change in the number of electrons reaching the collector due to change in its potential indicates that the electrons are ejected with a variety of velocities. (c) Current is reduced to zero for some negative potential of collect...

Inheritance and Variation | GSEB SCIENCE HUB

Inheritance and Variation Mendel’s Law of Inheritance (1) Mendelism means experiments performed by Mendel on genetics. (2) Mendel’s experiment involved 4 steps as selection, hybridization, selfing and calculations. His results led to the formation of laws of genetics later. (3) Mendel performed monohybrid and dihybrid crosses and gave three principles of inheritance. ( 4) Mendel’s three principles of inheritance are: (i ) Law of dominance (ii) Law of segregation or law of purity of gametes (iii) Law of independent assortment (5) Law of Dominance : The dominant characters are expressed when factors are in heterozygous condition. (6) The recessive characters are only expressed in homozygous conditions. The characters never blend in heterozygous condition. A recessive character that was not expressed in heterozygous condition may be expressed again when it becomes homozygous. (7) Law/Principle of segregation states that when a pair of contrasting factor or gene is brought together in a h...