Flashcards For NEET Biology - Cell The Unit of Life

Flashcards for NEET Biology are designed to boost your NEET preparation. Find below flashcards for Cell The Unit of Life. These flashcards on Cell The Unit of Life are prepared as per the NEET syllabus. This is helpful for aspirants of NEET and other exams during last-minute revision. Flashcards For NEET Biology – Cell The Unit of Life, covers all the important points that are frequently asked in the exam. Check BYJU’S for the full set of Flashcards and Study material for NEET Biology. Solve NEET Biology MCQs to check your understanding and outperform in the exam.

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Name of the NEET sub-section

Topic

Flashcards helpful for

Biology

Cell The Unit of Life

NEET exams

Cell The Unit of Life

Cell Theory Schleiden and Schwann
“Omnis cellula-e-cellula” Rudolf Virchow
Coined the term ‘cell’ Robert Hooke
First person to see live cells under microscope Anton Van Leeuwenhoek
Smallest cell Mycoplasma (0.3μm)
Mesosome Infolding of plasma membrane in prokaryotes- vesicles, tubules or lamellae

Help in DNA replication and cell wall formation

Cell envelope In prokaryotic cells

Made up of glycocalyx (slime or capsule), cell wall and plasma membrane

Plasmid Extra chromosomal, circular DNA in prokaryotic cells
Pili and Fimbriae Help bacteria in attachment
Prokaryotic ribosomes 70S (50S and 30S)

Polysome- several ribosomes attached to mRNA for protein synthesis

Bacterial Cell wall G +ve bacteria- Thick peptidoglycan and teichoic acid

G -ve bacteria- Thin peptidoglycan and lipopolysaccharides

Peptidoglycan Polymer of Cross linked monomers- N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM) attached to peptide
Fluid mosaic model Singer and Nicolson
Endoplasmic reticulum Rough ER- Protein synthesis

Smooth ER- Lipid synthesis

Golgi Complex Synthesis of glycoproteins and glycolipids
Tonoplast A single membrane surrounding vacuoles
Plastids Double membrane bound and contain extra chromosomal DNA, 70S ribosomes
Mitochondria Double membrane bound and contain extra chromosomal circular DNA, 70S ribosomes.

Site for aerobic respiration.

Leucoplasts Amyloplast- store carbohydrate

Elaioplast- store oil and fat

Aleuroplast- store proteins

Observed ribosomes for the first time George Palade
Eukaryotic ribosome 80S (60S and 40S)
Robert Brown First described nucleus
Nucleolus Site for ribosomal RNA synthesis
Chromatin is visible at Interphase nucleus
Lysosomes Contain hydrolytic enzymes
Glyoxysomes Present in plants and some fungi

Degradation of fats in seeds

Glyoxalate cycle

Peroxisomes Oxidation of long chain fatty acids

Biosynthesis of plasmalogens

Contains oxidative enzymes; uric acid oxidase, catalase, etc.

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