A Blood Donor is a person who voluntarily gives blood to be transfused into another person in need.
Topics
Reproduction in Lower and Higher Plants
- Reproduction
- Asexual Reproduction
- Asexual Reproduction in Unicellular Organisms > Binary Fission
- Binary Fission > Simple Binary Fission
- Binary Fission > Transverse Binary Fission
- Binary Fission > Longitudinal Binary Fission
- Asexual Reproduction in Unicellular Organisms > Multiple Fission
- Asexual Reproduction in Unicellular Organisms > Budding
- Asexual Reproduction in Multicellular Organisms > Budding
- Asexual Reproduction in Multicellular Organisms > Gemmule Formation
- Asexual Reproduction in Multicellular Organisms > Regeneration
- Asexual Reproduction in Multicellular Organisms > Fragmentation
- Asexual Reproduction in Multicellular Organisms > Spore Formation
- Vegetative Reproduction or Vegetative Propagation
- Natural Vegetative Propagation
- Artificial Vegetative Propagation
- Sexual Reproduction
- Flower - a Fascinating Organ of Angiosperms
- Structure and Development of Anther
- Microsporogenesis
- Structure and Development of Male Gametophyte
- Structure and Development of Ovule
- Types of Ovules (Based on Orientation)
- Types of Ovules (Based on Integuments)
- Megasporogenesis
- Development of Female Gametophyte or Embryo Sac
- Pollination
- Self-pollination
- Autogamy
- Cross-pollination
- Geitonogamy
- Agents and Types of Cross-pollination
- Anemophily
- Hydrophily
- Entomophily
- Ornithophily
- Cheiropteriphily
- Malacophily
- Outbreeding Devices
- Fertilization
- Pollen Pistil Interaction
- Artificial Hybridization or Artificial Fertilization
- Double Fertilization and Triple Fusion
- Endosperm
- Embryo
- Seed and Fruit Development
- Apomixis
- Parthenocarpy
- Polyembryony
- Overview of Reproduction in Lower and Higher Plants
Reproduction in Lower and Higher Animals
- Reproduction
- Sexual Reproduction
- The Male Reproductive System
- Menstrual Cycle (Ovarian Cycle)
- Gametogenesis
- Fertilization in Human
- Embryonic Development in Human
- Implantation in Human
- Pregnancy in Humans
- Placenta (Growth) in Human
- Parturition (Birth) in Human
- Lactation in Human
- Sexually Transmitted Diseases (STD) or Sexually Transmitted Infections (STI)
- Infertility
- Population Stabilisation and Birth Control
- Gastrulation in humans
- Human Reproduction
- Induced Abortion or Medical Termination of Pregnancy (MTP)
- Overview of Reproduction in Lower and Higher Animals
Inheritance and Variation
- Heredity
- Genes and Genetic
- Back Cross and Test Cross
- Deviations from Mendel’s Findings
- Chromosomal Theory of Inheritance
- Chromosomes - The Carriers of Heredity
- Linkage and Crossing Over
- Autosomal Inheritance
- Sex Determination
- Sex Linked Inheritance
- Human Genetic Disorders
- Exceptions to Mendel's Principles > Multiple alleles
- Linkage
- Types of Linkage > Complete Linkage
- Types of Linkage > Incomplete Linkage
- Crossing Over
- Colour blindness
- Haemophilia
- Sex Determination in Birds
- Down's syndrome (Mongolian Idiocy)
- Turner's Syndrome
- Klinefelter's Syndrome
- Overview of Inheritance and Variation
Molecular Basis of Inheritance
- Deoxyribonucleic Acid (DNA)
- Griffith’s Experiment
- Packaging of DNA Helix
- DNA Replication
- Protein Synthesis
- Regulation of Gene Expression
- The Lac Operon
- Genomics
- Human Genome Project
- DNA Fingerprinting
- Genetic Code
- Mechanism of Translation
- Overview of Molecular Basis of Inheritance
Origin and Evolution of Life
- Origin and Evolution of Universe and Earth
- Theories of Origin of Life
- Chemical Evolution of Life (Self-assembly Theory of the Origin of Life)
- Darwin’s Theory of Natural Selection (Darwinism)
- Mutation Theory
- Modern Synthetic Theory of Evolution
- Organic Evolution
- Hardy Weinberg’s Principle
- Adaptive Radiation
- Evidence of Evolution > Morphological Evidences
- Speciation
- Geological Time Scale
- Theories of Biological Evolution
- Overview of Origin and Evolution of Life
Plant Water Relation
- Plant Water Relation
- Properties of Water
- Water Available to Roots for Absorption
- Imbibition
- Diffusion
- Osmosis
- Osmotic Pressure
- Turgidity and Flaccidity (Plasmolysis)
- Passive Transport
- Water Potential (ψ)
- Concept of Transpiration
- Path of Water Across the Root
- Kinds of Transpiration
- Forces Contributing to Ascent of Sap
- Transport of Mineral Ions
- Structure of Stomatal Apparatus
- Significance of Transpiration
- Transportation of Food and Other Substances
- Overview of Plant Water Relation
Plant Growth and Mineral Nutrition
- Plant Growth
- Phases of Plant Growth
- Conditions Necessary for Plant Growth
- Plant Growth Rate
- Plant Growth Curve
- Differentiation, De-differentiation, Re- Differentiation
- Plant Development
- Plant Plasticity
- Plant Hormones
- Auxins
- Gibberellins
- Cytokinins
- Ethylene
- Abscisic Acid (ABA)
- Photoperiodism
- Vernalization (Yarovization)
- Plant Mineral Nutrition
- Nitrogen Cycle
- Overview of Plant Growth and Mineral Nutrition
Respiration and Circulation
- Cellular Respiration
- Organs of Respiratory Exchange
- Human Respiratory System
- Mechanism of respiration-Breathing
- Regulation of Breathing / Respiration
- Modified Respiratory Movements
- Disorders of Respiratory System
- Transportation in Living Organisms
- Circulation in Animals
- Types of Closed Circulation
- Blood Circulatory System
- Composition of Blood > Plasma (The Liquid Portion of Blood)
- Composition of Blood > Cellular Elements: Red Blood Cells (Erythrocytes)
- Composition of Blood > Cellular Elements: White Blood Cells (Leukocytes)
- Composition of Blood > Cellular Elements: Blood Platelets (Thrombocytes)
- Human Heart
- Working mechanism of human heart
- Blood Vessels
- Blood Pressure (B.P.)
- Electrocardiogram (ECG)
- Lymph and Lymphatic System
- Mechanism of respiration - Internal respiration
- Mechanism of respiration - External respiration
- Cellular Respiration
- Overview of Respiration and Circulation
Control and Co-ordination
- Control and Co-ordination
- Nervous System in Hydra
- Nervous System in Planaria (Flatworm)
- Neural Tissue
- Neuron (Or Nerve Cell)
- Neuroglial Cells (Or Glial Cells)
- Human Nervous System
- Central Nervous System (CNS)
- The Human Brain
- The Spinal Cord
- Peripheral Nervous System > Somatic Nervous System
- Sensory Receptors
- The Human Eye
- Human Ear
- Disorders of Nervous System
- Chemical Coordination
- Human Endocrine System
- The Hypothalamus
- Pituitary Gland or Hypophysis Gland
- The Pineal Gland
- Thyroid Gland
- Parathyroid Gland
- Thymus Gland
- Adrenal Gland (Suprarenal Gland)
- Pancreas (Islets of Langerhans)
- Reproductive Glands (Gonads)
- Synapse
- Types of Synapse
- Transmission of Nerve Impulse
- Generation of nerve impulse
- Reflex Action
- Peripheral Nervous System > Autonomic Nervous System
- Diffuse Endocrine Glands
- Overview of Control and Co-ordination
Human Health and Diseases
- Defence System in Our Body: Immune System
- Structure of Antibody
- Disease
- Protozoan Diseases
- Helminthic Diseases
- Bacterial Diseases
- Viral Diseases
- Fungal Diseases
- Vector Borne Diseases
- Cancer
- Drug Abuse
- Concept of Adolescence
- Addiction
- Vaccines and Vaccination
- Blood Transfusion and Blood Groups (ABO and Rh system)
Human Reproduction
Enhancement of Food Production
- Improvement in Food Production
- Plant Breeding
- Tissue Culture
- Single Cell Protein (SCP)
- Biofortification
- Animal Husbandry (Livestock)
- Animal Husbandry (Livestock) > Animal Breeding
- Dairy (Livestock) Farm Management
- Poultry Farm Management
- Animal Husbandry (Livestock) > Apiculture (Bee Farming)
- Animal Husbandry (Livestock) > Pisciculture (Fish Farming)
- Sericulture
- Lac Culture
- Microbes in Human Welfare
- Microbes in Industrial Products
- Microbes in Sewage Treatment
- Microbes in Energy Generation
- Microbes as Biocontrol Agents
- Microbes as Biofertilizers
- Microbial Role in Dairy Products
- Overview of Enhancement of Food Production
Biotechnology
- Biotechnology
- Principles of Biotechnology
- Methodology for rDNA Technology
- Crop Biotechnology > Hybrid Seeds
- Bioethics
- Effects of Biotechnology on the Environment
- Biopiracy
- Transgenic Plants
- Effects of Biotechnology on Human Health
- Tools and techniques for gene cloning/ rDNA technology
- Crop Biotechnology > Genetically Modified Organisms (GMOs)
- Overview of Biotechnology
Organisms and Populations
- Organisms and the Environment Around
- Habitat
- Niche
- Adaptations and Its Types
- Population
- Population Interactions
- Organisms and Populations
- Population Growth
- Positive Interactions > Mutualism (Symbiosis)
- Negative Interactions > Competition
- Negative Interactions > Parasitism
- Negative Interactions > Predation
- Positive Interactions > Commensalism
- Overview of Organisms and Populations
Ecosystems and Energy Flow
Biodiversity, Conservation and Environmental Issues
- Biodiversity
- Levels of Biodiversity
- Patterns of Biodiversity
- Biodiversity Current Scenario
- Loss of Biodiversity
- Conservation of Wildlife
- Biological Diversity Act, 2002
- Environmental Issues
- Noise Pollution
- Green House Effect
- Preventive Measures of Green House Effect
- Deforestation and Its Causes
- Global Warming
- Preventive Measures of Global Warming
- Mission Harit Maharashtra
- Conservation of Biodiversity
- Overview of Biodiversity, Conservation and Environmental Issues
- Definition: Blood Transfusion
- Definition: Blood Donor
- Definition: Blood Recipient
- Definition: Antigens
- Definition: Antibodies
- Definition: Universal Donor
- Definition: Universal Recipient
- Blood Groups
- Rh Factor
- Key Point: Blood Transfusion and Blood Groups
CISCE: Class 10
Definition: Blood Transfusion
Blood transfusion is the process of introducing blood from a healthy donor into the bloodstream of a patient, typically through a vein, often during surgery or after heavy blood loss.
CISCE: Class 10
Definition: Blood Donor
CISCE: Class 10
Definition: Blood Recipient
A Blood Recipient is a person who receives blood during a transfusion, requiring compatibility with the donor's blood group.
CISCE: Class 10
Definition: Antigens
Antigens are specific proteins present on the surface of red blood cells that determine an individual’s blood group (e.g., Antigen A or Antigen B).
CISCE: Class 10
Definition: Antibodies
Antibodies are proteins present in blood plasma that react against specific antigens not found on the individual's own red blood cells, playing a key role in blood group compatibility.
CISCE: Class 10
Definition: Universal Donor
A person with blood group O is called a universal donor because their blood can be safely transfused to individuals of all major blood groups (A, B, AB, and O).
CISCE: Class 10
Definition: Universal Recipient
A person with blood group AB is called a universal recipient because they can receive blood from all major blood groups (A, B, AB, and O) without risk of incompatibility.
Maharashtra State Board: Class 8
Blood Groups
Carl Landsteiner discovered ABO blood groups in 1900, for which he won the Nobel Prize in 1930. The AB blood group was discovered by Decastello and Sturli in 1902.
- Blood groups are determined by the presence or absence of specific proteins, called antigens and antibodies, in the blood.
- These proteins are located on the surface of red blood cells and within the plasma, affecting how the body responds to various blood types.
There are four primary blood groups based on the type of antigens present on the red blood cells:
- A blood group: It has A antigens on the red cells and B antibodies in the plasma.
- B blood group: It has B antigens on the red cells and A antibodies in the plasma.
- AB blood group: Has both A and B antigens on the red cells and no antibodies in the plasma. It is known as the universal recipient.
- O blood group: Has no antigens on the red cells but has both A and B antibodies in the plasma. It is known as the universal donor.
Maharashtra State Board: Class 8
Rh Factor
The Rh (Rhesus) factor is a specific protein found on the surface of red blood cells. The name comes from its discovery in the Rhesus monkey, where it was first identified. The presence or absence of the Rh factor is used to classify blood as either Rh-positive (Rh +ve) or Rh-negative (Rh -ve).
- Rh Positive (Rh +ve): Indicates the presence of the Rh factor.
- Rh Negative (Rh -ve): Indicates the absence of the Rh factor.
Each of the four main blood groups (A, B, AB, and O) can be either Rh positive or Rh negative, resulting in a total of eight different blood groups.
The Rh factor is an important consideration in blood transfusions and pregnancy. If an Rh-negative person receives Rh-positive blood, or if an Rh-negative mother is pregnant with an Rh-positive baby, complications can arise. Therefore, knowing the Rh status is crucial for medical treatments and prenatal care.
CISCE: Class 10
Key Point: Blood Transfusion and Blood Groups
- Blood transfusion involves transferring blood from a healthy donor to a patient and requires strict blood group compatibility.
- The ABO system divides blood into four types—A, B, AB, and O—based on antigens present on RBCs and corresponding antibodies in plasma.
- Blood group O is known as the universal donor, while group AB is the universal recipient due to compatibility with all types.
- The Rh system is based on the presence (Rh⁺) or absence (Rh⁻) of the Rh factor (D antigen) on RBCs, discovered in Rhesus monkeys.
- Rh incompatibility in pregnancy may lead to the mother's sensitisation, causing complications for future Rh⁺ pregnancies, including foetal death or abortion.
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Series: Blood Transfusion and Blood Groups (ABO and Rh system)
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