Prof. Siddharth Sanghvi

Bacterial Diseases – For NEET

Bacterial Diseases – For NEET

Biological Classification, NCERT LINE BY LINE /

Disease Name Causative Bacteria Name Anthrax Bacillus anthracis Gonorrhea (STD) Neisseria gonorrhoeae Typhoid (Enteric) fever Salmonella typhi Leprosy (Hansen’s disease) Mycobacterium leprae Boils/Wound infections Staphylococcus aureus Tuberculosis Mycobacterium tuberculosis Cholera Vibrio cholerae Diphtheria Corynebacterium diphtheriae Tetanus Clostridium tetani Botulism Clostridium botulinum Dysentery Shigella dysenteriae Syphilis (STD) Treponema pallidum Whooping cough (pertussis) Bordetella pertussis Gas Gangrene […]

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R.H. Whittaker (1969) proposed a Five Kingdom Classification. The kingdoms defined by him were named Monera, Protista, Fungi, Plantae and Animalia. The main criteria for classification used by him include cell structure, body organisation, mode of nutrition, phylogenetic relationships and reproduction

R.H. Whittaker (1969) proposed a Five Kingdom Classification. The kingdoms defined by him were named Monera, Protista, Fungi, Plantae and Animalia. The main criteria for classification used by him include cell structure, body organisation, mode of nutrition, phylogenetic relationships and reproduction

Biological Classification, NCERT LINE BY LINE, pre-class /

Kingdom Cell Type Cell Wall Nuclear Membrane Body Organization Mode of Nutrition Main Criteria Secondary Criteria Monera Prokaryotic Noncellulosic (Polysaccharide + amino acid) Absent Cellular Autotrophic (chemosynthetic and photosynthetic) and Heterotrophic (saprophytic/parasitic) Cell structure Body organization, Mode of nutrition Protista Eukaryotic Present in some Present Cellular Autotrophic (Photosynthetic) and Heterotrophic Cell structure, Nuclear membrane Mode

R.H. Whittaker (1969) proposed a Five Kingdom Classification. The kingdoms defined by him were named Monera, Protista, Fungi, Plantae and Animalia. The main criteria for classification used by him include cell structure, body organisation, mode of nutrition, phylogenetic relationships and reproduction Read More »

NCERT-NEET-The Golgi cisternae are concentrically arranged near the nucleus

NCERT-NEET-The Golgi cisternae are concentrically arranged near the nucleus

CELL: THE UNIT OF LIFE, NCERT LINE BY LINE, pre-class /

Golgi Apparatus – Concentric Cisternae Near the Nucleus The Golgi apparatus is a key organelle in eukaryotic cells, made up of flat, membrane-bound sacs called cisternae. These cisternae are concentrically arranged near the nucleus. “Concentrically arranged” means the cisternae are organized in curved or ring-like layers, one around the other — much like ripples in

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Bacteria can be classified into two groups on the basis of the differences in the cell envelopes and the manner in which they respond to the staining procedure developed by Gram viz., those that take up the gram stain are Gram positive and the others that do not are called Gram negative bacteria.

Bacteria can be classified into two groups on the basis of the differences in the cell envelopes and the manner in which they respond to the staining procedure developed by Gram viz., those that take up the gram stain are Gram positive and the others that do not are called Gram negative bacteria.

CELL: THE UNIT OF LIFE, NCERT LINE BY LINE, pre-class /

Gram staining is a method used to classify bacteria into two groups based on the characteristics of their cell walls. Here’s a breakdown of the Gram staining process, which is best visualized with a flowchart: Fixation: Bacteria are fixed to a slide by heat. Primary Stain: Crystal violet stain is applied. Mordant: Iodine solution is

Bacteria can be classified into two groups on the basis of the differences in the cell envelopes and the manner in which they respond to the staining procedure developed by Gram viz., those that take up the gram stain are Gram positive and the others that do not are called Gram negative bacteria. Read More »

<p>NEET – LIVING WORLD – Based on NCERT data, here’s a detailed explanation of the difference between the terms <strong>category</strong>, <strong>taxon</strong>, and <strong>rank</strong>, along with sorted examples:</p>

NEET – LIVING WORLD – Based on NCERT data, here’s a detailed explanation of the difference between the terms category, taxon, and rank, along with sorted examples:

Uncategorized /

Taxonomic Categories, Taxa, and Ranks Taxonomic Categories, Taxa, and Ranks Based on the NCERT data, here’s a detailed explanation of the difference between the terms category, taxon, and rank, along with sorted examples: Explanation: Category: A category is a general grouping used in the classification of living organisms. It represents a level in the taxonomic

NEET – LIVING WORLD – Based on NCERT data, here’s a detailed explanation of the difference between the terms category, taxon, and rank, along with sorted examples:

Read More »

Structure of Cilia and Flagella – Why do cilia and flagella have singlet microtubules in the hub but not in the basal body?

CELL: THE UNIT OF LIFE, NCERT LINE BY LINE /

Structure of Cilia and Flagella Structure of Cilia and Flagella Why do cilia and flagella have singlet microtubules in the hub but not in the basal body? Cilia and flagella are complex cellular structures responsible for motility and fluid movement. Their structural organization is key to their function, and the arrangement of microtubules within them

Structure of Cilia and Flagella – Why do cilia and flagella have singlet microtubules in the hub but not in the basal body? Read More »

NCERT-Gregor Mendel, conducted hybridisation experiments on garden peas for seven years (1856-1863) and proposed the laws of inheritance in living organisms. Mendel published his work on inheritance of characters in 1865 butfor several reasons, it remained unrecognised till 1900.

NCERT-Gregor Mendel, conducted hybridisation experiments on garden peas for seven years (1856-1863) and proposed the laws of inheritance in living organisms. Mendel published his work on inheritance of characters in 1865 butfor several reasons, it remained unrecognised till 1900.

NCERT LINE BY LINE, pre-class, PRINCIPLES OF INHERITANCE AND VARIATION /

Mendel’s Approach and Results Mendel’s Approach and Results Aspect of Mendel’s Approach Result Application of statistical analysis Novological – New way to address Biological Problems by using Maths Application of mathematical logic Increased reliability of inferences Large sampling size Greater credibility of collected data Experimentation on successive generations Confirmation of general rules of inheritance Investigation

NCERT-Gregor Mendel, conducted hybridisation experiments on garden peas for seven years (1856-1863) and proposed the laws of inheritance in living organisms. Mendel published his work on inheritance of characters in 1865 butfor several reasons, it remained unrecognised till 1900. Read More »

NCERT-Emasculated flowers have to be covered with a bag of suitable size, generally made up of butter paper, to prevent contamination of its stigma with unwanted pollen

NCERT-Emasculated flowers have to be covered with a bag of suitable size, generally made up of butter paper, to prevent contamination of its stigma with unwanted pollen

NCERT LINE BY LINE, pre-class /

Emasculated Flowers and Butter Paper Emasculated Flowers and Butter Paper Using butter paper to cover emasculated flowers serves a specific purpose in plant breeding and hybridization processes. Butter paper, also known as wax paper, is a semi-transparent paper that has been coated with a thin layer of wax. Here’s why it’s commonly used: Non-stick surface:

NCERT-Emasculated flowers have to be covered with a bag of suitable size, generally made up of butter paper, to prevent contamination of its stigma with unwanted pollen Read More »

NEET-NCERT-Mitochondria (sing.: mitochondrion), unless specifically stained, are not easily visible under the microscope. The number of mitochondria per cell is variable depending on the physiological activity of the cells.Plastids are found in all plant cells and in euglenoides.

NEET-NCERT-Mitochondria (sing.: mitochondrion), unless specifically stained, are not easily visible under the microscope. The number of mitochondria per cell is variable depending on the physiological activity of the cells.Plastids are found in all plant cells and in euglenoides.

CELL: THE UNIT OF LIFE, NCERT LINE BY LINE, pre-class /

Mitochondria Line 1: Mitochondria (sing.: mitochondrion), unless specifically stained, are not easily visible under the microscope. Explanation: This line introduces mitochondria and highlights that they are challenging to see under a microscope without special staining techniques due to their small size and colorless nature. Line 2: The number of mitochondria per cell is variable depending

NEET-NCERT-Mitochondria (sing.: mitochondrion), unless specifically stained, are not easily visible under the microscope. The number of mitochondria per cell is variable depending on the physiological activity of the cells.Plastids are found in all plant cells and in euglenoides. Read More »