Cell Wall Structures Quiz
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Questions and Answers

What is the science dealing with the study of minute, microscopic, and submicroscopic organisms?

  • Microbiology (correct)
  • Genetics
  • Astrobiology
  • Biochemistry
  • What is the importance of studying Microbiology in the field of veterinary medicine?

  • Epidemiology of microorganisms and their relation to public health
  • Diagnosis of human diseases
  • Understanding plant biology
  • Treatment of animal diseases (correct)
  • What is the application of antibiotics and sanitary application of disinfectants and antiseptics known as?

  • Biotechnology
  • Agricultural microbiology
  • Applied microbiology (correct)
  • Sanitary engineering
  • Which field is interested in studying Microbiology for solving problems in medicine, agriculture, and industry?

    <p>Microbiology</p> Signup and view all the answers

    What is the chemical composition of genetic material in microorganisms?

    <p>DNA-RNA-Protein</p> Signup and view all the answers

    In which area is the study of microbial genetics important?

    <p>Biotechnology</p> Signup and view all the answers

    Who was the first to observe bacteria, yeasts, and protozoa?

    <p>Anthony Van Leeuwenhoek</p> Signup and view all the answers

    Who is known as the 'Father of Microbiology'?

    <p>Louis Pasteur</p> Signup and view all the answers

    Who developed staining of bacteria with methylene blue?

    <p>Paul Ehrlich</p> Signup and view all the answers

    Who is credited with inventing the petri dish?

    <p>Robert Koch</p> Signup and view all the answers

    Who was the first to cover wounds by dressing soaked in phenol and use disinfectants?

    <p>Joseph Lester</p> Signup and view all the answers

    Which scientist discovered Penicillin in 1929?

    <p>Alexander Fleming</p> Signup and view all the answers

    Who developed solid artificial medium for culturing microorganisms?

    <p>Robert Koch</p> Signup and view all the answers

    Which scientist discovered the tubercle bacilli which cause T. B.?

    <p>Robert Koch</p> Signup and view all the answers

    Who developed microscope lenses corrected for chromatic and spherical aberrations?

    <p>Ernest Abbe</p> Signup and view all the answers

    Who is known for introducing the differential staining technique now named at his honor Gram stain?

    <p>Hans Christian Gram</p> Signup and view all the answers

    Which structure lies inside the cell wall and encloses the cytoplasm of the cell?

    <p>Plasma (cytoplasmic) membrane</p> Signup and view all the answers

    What is the main function of the plasma membrane related to ATP production?

    <p>Mediates oxidative phosphorylation for ATP production</p> Signup and view all the answers

    Which type of proteins in the plasma membrane contain channels through which substances enter and exit the cell?

    <p>Integral proteins</p> Signup and view all the answers

    Why do large molecules such as proteins usually not pass through the plasma membrane?

    <p>Possibly because these molecules are larger than the channels in integral proteins</p> Signup and view all the answers

    What type of molecules usually pass easily through the plasma membrane?

    <p>Water, oxygen, carbon dioxide, and some simple sugars</p> Signup and view all the answers

    What is the main function of peripheral proteins in the plasma membrane?

    <p>Functioning as enzymes or mediators of changes in membrane shape during movement</p> Signup and view all the answers

    Which process involves the movement of molecules or ions from an area of high concentration to an area of low concentration until they are evenly distributed?

    <p>Facilitated Diffusion</p> Signup and view all the answers

    What is the net movement of solvent molecules across a selectively permeable membrane to restore equilibrium in osmotic pressure?

    <p>Osmosis</p> Signup and view all the answers

    Which process requires energy (ATP) to move substances against the concentration gradient?

    <p>Active Transport</p> Signup and view all the answers

    Which structure is composed of rRNA and serves as the site of protein synthesis?

    <p>Ribosome</p> Signup and view all the answers

    What is the chief solvent involved in osmosis within living systems?

    <p>Water</p> Signup and view all the answers

    Which type of ribosome is smaller and less dense than the eukaryotic one?

    <p>70S ribosomes</p> Signup and view all the answers

    What is the pressure required to prevent the movement of pure water into a solution containing solutes?

    <p>Osmotic Pressure</p> Signup and view all the answers

    Which process occurs against the concentration gradient and involves chemically altering the transported substance after transport?

    <p>Group Translocation</p> Signup and view all the answers

    What are certain compounds that disrupt membrane phospholipids and cause leakage of intracellular components leading to cell death?

    <p>Quaternary ammonium compounds</p> Signup and view all the answers

    What are reserve deposits called inclusions found in the cytoplasm?

    <p>Metachromatic granules</p> Signup and view all the answers

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