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Biology Lectures
Pakistan
เข้าร่วมเมื่อ 9 ก.ย. 2023
Welcome to our "Biology Lectures" channel, where we make the complexities of life simple and fascinating!
Dive into the wonders of the natural world with our engaging & informative videos covering everything from cellular biology to ecosystems and beyond.
Join us as we explore the intricate web of life, uncovering the mysteries of genetics, evolution, and ecology.
Whether you're a student, educator, or just a curious mind, "Biology Lectures" is your gateway to unlocking the secrets of life on Earth. Subscribe now and let's embark on a journey of discovery together!
Dive into the wonders of the natural world with our engaging & informative videos covering everything from cellular biology to ecosystems and beyond.
Join us as we explore the intricate web of life, uncovering the mysteries of genetics, evolution, and ecology.
Whether you're a student, educator, or just a curious mind, "Biology Lectures" is your gateway to unlocking the secrets of life on Earth. Subscribe now and let's embark on a journey of discovery together!
Reproduction in Bacteria | Binary fission |Conjugation Transduction & Transformation | 2024
Reproduction in bacteria!
While bacteria primarily reproduce asexually by binary fission, some species exhibit mechanisms of genetic exchange that resemble sexual reproduction.
_Types of Genetic Exchange in Bacteria_
1. *Transformation*: Direct uptake of free DNA molecules from the environment.
2. *Transduction*: Transfer of DNA from one bacterium to another through a viral vector.
3. *Conjugation*: Direct transfer of DNA from one bacterium to another through a specialized structure.
_Conjugation_
Conjugation is the most complex and coordinated form of genetic exchange in bacteria.
1. *Donor cell*: Prepares for conjugation by producing a sex pilus.
2. *Recipient cell*: Recognizes the donor cell and establishes contact.
3. *DNA transfer*: A plasmid or chromosomal DNA is transferred from the donor to the recipients.
#biology #federalboard #grade11
#BacterialSexualReproduction
#GeneticExchange
#Conjugation
#Transformation
#Transduction
#BacterialGenetics
#AntibioticResistance
While bacteria primarily reproduce asexually by binary fission, some species exhibit mechanisms of genetic exchange that resemble sexual reproduction.
_Types of Genetic Exchange in Bacteria_
1. *Transformation*: Direct uptake of free DNA molecules from the environment.
2. *Transduction*: Transfer of DNA from one bacterium to another through a viral vector.
3. *Conjugation*: Direct transfer of DNA from one bacterium to another through a specialized structure.
_Conjugation_
Conjugation is the most complex and coordinated form of genetic exchange in bacteria.
1. *Donor cell*: Prepares for conjugation by producing a sex pilus.
2. *Recipient cell*: Recognizes the donor cell and establishes contact.
3. *DNA transfer*: A plasmid or chromosomal DNA is transferred from the donor to the recipients.
#biology #federalboard #grade11
#BacterialSexualReproduction
#GeneticExchange
#Conjugation
#Transformation
#Transduction
#BacterialGenetics
#AntibioticResistance
มุมมอง: 71
วีดีโอ
Modes of Nutrition in Bacteria | Biology Grade 11 | National book foundation | 2024
มุมมอง 63วันที่ผ่านมา
Modes of Nutrition in Bacteria Bacteria exhibit diverse modes of nutrition, classified into several categories: *Autotrophic Nutrition* 1. Photoautotrophic: Using light energy (e.g., cyanobacteria). 2. Chemoautotrophic: Using chemical energy (e.g., sulfur-oxidizing bacteria). *Heterotrophic Nutrition* 1. Saprotrophic: Decomposing organic matter (e.g., soil bacteria). 2. Parasitic: Obtaining nut...
Types of Motility in Bacteria : Flagella & its Structure | Federal Board Pakistan Biology | 2024
มุมมอง 102หลายเดือนก่อน
Motility in bacteria refers to their ability to move using various mechanisms. *Types of Motility:* 1. Flagellar motility: Using flagella (whip-like structures) for movement. 2. Pili motility: Using pili (hair-like structures) for twitching or sliding. 3. Gliding motility: Moving along surfaces without flagella or pili. 4. Swimming motility: Moving through fluids using flagella. 5. Chemotaxis: ...
Bacteria: Shapes, Sizes, and Endosporespores" | Federal Board Pakistan NBF 2024
มุมมอง 94หลายเดือนก่อน
*Bacterial Shapes:* 1. Cocci (spherical): 0.5-1.0 μm in diameter 2. Bacilli (rod-shaped): 2-5 μm in length 3. Spirilla (spiral): 1-5 μm in length 4. Vibrio (comma-shaped): 2-4 μm in length 5. Pleomorphic (irregular shapes): variable sizes *Bacterial Sizes:* 1. Small: 0.1-1.0 μm (e.g., Mycoplasma) 2. Medium: 1-5 μm (e.g., E. coli) 3. Large: 5-10 μm (e.g., Bacillus) *Endospore Formation:* 1. Init...
Structure of Bacteria | Gram Positive & Negative Cell Wall | Urdu Hindi English | Federal Board 2024
มุมมอง 80หลายเดือนก่อน
*Bacteria Structure:* 1. Cell wall 2. Cell membrane 3. Cytoplasm 4. Nucleoid (DNA) 5. Ribosomes 6. Pili (fimbriae) 7. Flagella *Cell Wall:* 1. Peptidoglycan (Gram-positive) 2. Lipopolysaccharides (Gram-negative) 3. Teichoic acids (Gram-positive) 4. Periplasmic space *General Microbiology:* #Microbiology #Bacteria #CellBiology #MicrobeMonday #ScienceEducation *Bacteria Structure:* #BacteriaStruc...
Cyanobacteria | Blue Green Algae | Urdu Hindi English Federal Board 2024
มุมมอง 171หลายเดือนก่อน
Cyanobacteria Cyanobacteria (also known as Blue-Green Algae) are: 1. Gram-negative, photosynthetic bacteria 2. Found in aquatic environments (freshwater, marine, and terrestrial) 3. Capable of producing oxygen through photosynthesis 4. Responsible for Earth's oxygenation ~2.7 billion years ago 5. Diverse group, with ~2,400 species 6. Range from unicellular to filamentous and colonial forms 7. S...
Archaea & Prokaryotes | Unifying Characters of Archaebacteria | Urdu Hindi English 2024
มุมมอง 149หลายเดือนก่อน
Archaea & Prokaryotes *Unifying Characters of Archaea:* 1. Prokaryotic cell structure 2. Lack of true nucleus 3. Absence of membrane-bound organelles 4. Single circular chromosome 5. No mitochondria or chloroplasts 6. Cell walls lacking peptidoglycan (except for Methanobrevibacter) 7. Membranes with ether lipids 8. Unique metabolic processes (e.g., methanogenesis) 9. Thermophilic or hyperthermo...
Epistasis: Gene Interactions Explained | Dominant & Recessive Epistasis | Grade 11 | FBISE 2024
มุมมอง 1.1K2 หลายเดือนก่อน
Epistasis Learn about Epistasis, the interaction between genes that affect a single trait. Understand dominant and recessive epistasis, and explore examples and applications in genetics and evolutionary biology. Epistasis refers to the interaction between two or more genes that affect a single trait or phenotype. It occurs when the expression of one gene is influenced by the presence or absence...
Rh Blood Type: Importance in Pregnancy and Transfusions | Erythroblastosis Foetalis | 2024 | FBISE
มุมมอง 1222 หลายเดือนก่อน
Rh Blood Group System Learn about the Rh Blood Group System, its genetics, and clinical importance. Understand Rh blood type compatibility and its implications for pregnancy and blood transfusions 1. Discovered by Karl Landsteiner and Alexander Wiener in 1940 2. Named after the Rhesus monkey, in which it was first identified 3. Classified into two main categories: - Rh positive (Rh ): presence ...
ABO Blood Group Systems | Genetics & Transfusion| Bio Grade 11 | Urdu Hindi English | FBISE 2024
มุมมอง 1192 หลายเดือนก่อน
*Blood Group Systems:* 1. ABO Blood Group System 2. Rh Blood Group System 3. Kell Blood Group System 4. Duffy Blood Group System 5. MNS Blood Group System *ABO Blood Group System:* 1. Discovered by Karl Landsteiner in 1901 2. Classified into four main groups: - A - B - AB - O *ABO Blood Group Genetics:* 1. Determined by ABO gene on chromosome 9 2. Three alleles: A, B, and O 3. A and B alleles a...
Dominance Relations | Incomplete & Co-dominance | Biology Grade 11 | Urdu Hindi English | FBISE
มุมมอง 942 หลายเดือนก่อน
Exception to the Mendalian Inheritance Dominance relations Complete dominance Incomplete dominance Co-dominance: Multiple Alleles #biology #federalboard #genetics
Peroxisome & Glyoxysomes | Microbodies | Grade 11 Biology | Federal KPK Mirpur Board Pakistan 2024
มุมมอง 923 หลายเดือนก่อน
Peroxisomes are small, membrane-bound organelles found in eukaryotic cells, involved in various cellular processes: _Structure:_ - Small, spherical or oval shape - Single membrane - Diameter: 0.1-1.5 μm _Function:_ - Breakdown of fatty acids and amino acids - Detoxification of harmful substances (e.g., ethanol, formaldehyde) - Synthesis of plasmalogens (lipids important for brain and heart func...
Lysosomes, Structure & Function | Biology 11 National Book Foundation Pakistan 2024 | Urdu English
มุมมอง 653 หลายเดือนก่อน
Structure and Function - Lysosomes are membrane-bound organelles found in eukaryotic cells. - They contain digestive enzymes and acids that break down and recycle cellular waste, proteins, and lipids. - Lysosomes fuse with vesicles containing cellular waste, engulfing and digesting the contents. *Origin:* - Lysosomes form from the Golgi apparatus, where digestive enzymes are packaged into vesic...
Golgi Complex | Structure & Function of Golgi Apparatus | Bio Grade 11 | Federal Board Pakistan 2024
มุมมอง 813 หลายเดือนก่อน
Golgi Complex - A complex organelle composed of flattened sacs (cisternae) tubules and associated vesicles. Location : Typically located near the cell nucleus Morphology Consists of two main parts: 1. Cis-Golgi (Forming Face) 2. Trans-Golgi (Maturing Face) Function: Cell secretions: Receives proteins and lipids from the endoplasmic reticulum (ER) Conjugated Molecules: Modifies and processes the...
Ribosomes | Biology Grade 11 | Federal Board Pakistan | Urdu Hindi English
มุมมอง 703 หลายเดือนก่อน
Ribosomes - Small organelles found throughout the cytoplasm of cells - Composed of RNA and proteins - Responsible for protein synthesis (translation) - Read messenger RNA (mRNA) sequences and assemble amino acids into polypeptide chains - Can be free-floating or attached to the endoplasmic reticulum (rough ER) _Types of Ribosomes:_ - Prokaryotic ribosomes (70S): found in prokaryotic cells, such...
Endoplasmic Reticulum | Biology Grade 11 | Urdu Hindi English | Federal 2024
มุมมอง 1113 หลายเดือนก่อน
Endoplasmic Reticulum | Biology Grade 11 | Urdu Hindi English | Federal 2024
Exceptions of Mendelian Inheritance | Incomplete & Codominanc between alleles | Federal Biology 2024
มุมมอง 1383 หลายเดือนก่อน
Exceptions of Mendelian Inheritance | Incomplete & Codominanc between alleles | Federal Biology 2024
Mendelian Genetics-III | Law of Independent Assortment | Biology | Urdu Hindi English | 2024
มุมมอง 1153 หลายเดือนก่อน
Mendelian Genetics-III | Law of Independent Assortment | Biology | Urdu Hindi English | 2024
Mendelian genetics -II | Law of Segregation & Monohybrid cross | Bio Grade 11 | Urdu Hindi English
มุมมอง 973 หลายเดือนก่อน
Mendelian genetics -II | Law of Segregation & Monohybrid cross | Bio Grade 11 | Urdu Hindi English
Mendelian Genetics - I | Introduction | Bio Grade 11 | Urdu Hindi English | Federal KPK Mirpur 2024
มุมมอง 1263 หลายเดือนก่อน
Mendelian Genetics - I | Introduction | Bio Grade 11 | Urdu Hindi English | Federal KPK Mirpur 2024
Classification of Enzymes | Biology Grade 11 | Federal Board Pakistan | Urdu Hindi English | 2024
มุมมอง 1043 หลายเดือนก่อน
Classification of Enzymes | Biology Grade 11 | Federal Board Pakistan | Urdu Hindi English | 2024
Enzyme Inhibition & Feed Back Inhibition | Competitive & Non-Competitive Inhibition | Federal Board
มุมมอง 844 หลายเดือนก่อน
Enzyme Inhibition & Feed Back Inhibition | Competitive & Non-Competitive Inhibition | Federal Board
Factors Affecting Rate of Enzyme Action | Temperature, pH & Conc. of Substrate & Enzyme | 2024
มุมมอง 854 หลายเดือนก่อน
Factors Affecting Rate of Enzyme Action | Temperature, pH & Conc. of Substrate & Enzyme | 2024
Activation Energy & Enzymes | Lowering of Activation Energy | Biology Grade 11 | Urdu Hindi English
มุมมอง 694 หลายเดือนก่อน
Activation Energy & Enzymes | Lowering of Activation Energy | Biology Grade 11 | Urdu Hindi English
Enzyme Catalysis | Lock & Key, Induced Fit Model | Allosteric Enzymes | Urdu Hindi English | 2024
มุมมอง 1304 หลายเดือนก่อน
Enzyme Catalysis | Lock & Key, Induced Fit Model | Allosteric Enzymes | Urdu Hindi English | 2024
Enzymes | Active Site & Cofactors | Types of Cofactors | Biology Grade 11 | Federal Board 2024
มุมมอง 1684 หลายเดือนก่อน
Enzymes | Active Site & Cofactors | Types of Cofactors | Biology Grade 11 | Federal Board 2024
RNA | Types of RNAs | mRNA, tRNA & rRNA | New Biology 2024 | Urdu Hindi English | Federal KPK Mirpur
มุมมอง 4674 หลายเดือนก่อน
RNA | Types of RNAs | mRNA, tRNA & rRNA | New Biology 2024 | Urdu Hindi English | Federal KPK Mirpur
Watson & Crick Model of DNA | Grade 11 Biology | Urdu Hindi English | Federal 2024
มุมมอง 1884 หลายเดือนก่อน
Watson & Crick Model of DNA | Grade 11 Biology | Urdu Hindi English | Federal 2024
Structure & Functions of ATP & NAD | Biology Grade 11 | New 2024 Curriculum | Urdu Hindi English
มุมมอง 1674 หลายเดือนก่อน
Structure & Functions of ATP & NAD | Biology Grade 11 | New 2024 Curriculum | Urdu Hindi English
Nucleic Acid | Structure of Nucleotides | Phosphodiester Linkage | Bio Grade 11 2024 | Federal board
มุมมอง 3094 หลายเดือนก่อน
Nucleic Acid | Structure of Nucleotides | Phosphodiester Linkage | Bio Grade 11 2024 | Federal board
Very nice leacture sir
Thank you 😊
❤❤❤
شکریہ برادر
🎉
شکریہ
Very nice presentation 🎉
Thnx
Very well explained.. ❤
Thnx
Excellent 👌
Thanks a lot 😊
Good
Than you sir, plz regular upload kren
IA
Excellent 👌
Thanx
Impressive lecture 👍
Thanx
Thanks you sir
Welcome
👍🏼👍🏼👍🏼
Thnx
Very impressive 🎉
Thank you
Very nice 👍
Thanx
Very nice
Thank you
Very nice sir Sir also give conceptual questions according to fbise at the end of topic Plz
Sir es Tarah k leactures upload karo agay chapters k b
جی جاری رہیں گے ۔۔۔ پوری کتاب کے ہونگے مارچ تک انشاء اللہ
@biology.masood ♥️♥️♥️🥰
V nice sir
Thank you 😊
❤❤❤❤❤
Good use of animations sir
Thank you
Excellent elaboration
Well taught !!
Thanx
Very well narrated
Thanx
👍
Thanx
👍
Thank you
Kindly update this chapter as soon as possible Sir, thank you ☺️
I will try my best
Very nice 👍
Thank you! Cheers!
Nice Lecture..
Thank you 😊
sir mdcat kliye 2025 kliye hum old addition pad lein he addition bilkul smj se bahar hai fuzool extent kiya.howa hai circulation digestion k units hai e nhi
یہ دیکھنا پڑے گا کہ 2025 کے لیئے نئے کریکلم سے ٹیسٹ بنے گا ۔۔۔ اس لیئے 2025 کے لیئے اپ کو پرانے کریکلم سے تیاری میں نقصان ہونے کا احتمال ہے
@biology.masood thank you sir
Sir ap Kashmir se hein?❤
Jee, Muzaffarabad Azad Kashmir
Sir class ninth k b
Very soon inshallah
@biology.masood okay sir
❤❤❤❤
❤❤❤❤
❤❤❤❤❤
Very nice ❤
Thank you 😊
Clearly described thank you
Thank you 😊
Excellent addition 🎉
Thanx
Zaberdast
Very nice presentation 🎉
Thank you! Cheers!
Well explained
Thanx
Very informative sir 😊
Thanx
❤
❤
Masha Allah
Thank you 😊
Boht aala 👌
Thanx a lot
Well taught ❤
Thank you 😊
Excellent
Thank you 👍
Good ..well taught
Thanks 👍
Very nice 👍🎉
Nicely done 👍✅
Thank you so much 😊
Sir please class 9
Very soon inshallah
@@biology.masood please ch7