module 1

 

Module 1:

1.     Anton van Leeuwenhoek made an essential contribution to the development of the cell theory. Elaborate his contribution to the scientific community. click here


2.     The tree of life was produced by comparing Genetic Sequence Data, and can you make a tree of life with the domain of bacteria, archaea, and eukarya.click here


3.     Water is denser as a liquid than as a solid. Can you explain why and how?click here


4.     Can simple molecules and kinetic energy lead to chemical evolution? Elaborate what experiment supports this hypothesis and infer your results for the same.click here


5.     The prebiotic soup model of chemical evolution is a well-accepted model for the development of life on earth. Do you agree with this hypothesis? If it is yes, justify your answer.click here


6.     When H2 and CO2 react, acetic acid can be formed spontaneously while the production of formaldehyde requires an input of energy. What do you infer from this reaction and justify your answer?click here


7.     The flounder is able to survive in very cold water, but only when water is in its liquid state. Discuss what properties of water in the solid state may prevent or harm life.click here


8.     The genomes of a wide array of extremophiles have been sequenced, and expeditions regularly seek to characterize new species. Why?click here


9.     Robert Koch postulates a link between a particular species of bacterium and a specific disease. Can you narrate his postulates to understand how the disease is transmitting to the living system?click here

10.  What makes some bacterial cells pathogenic but not probiotic organisms that live in our gastrointestinal tract?click here


11.  You have studied extremophiles as part of your Biology. What are they, and can you give one example of such extremophiles and mention their usage in research.click here


12.  Discuss morphological diversity of the bacteria with sufficient examples.click here


13.  Gram staining differentiates Gram-negative bacteria from Gram-positive bacteria, how they are carried out in the laboratory, and discuss the mechanism of action of the stain.click here


14.  Elaborate the life cycle of one protists who starts life in a mosquito and matures in humans with a colorful diagram.click here


15.  Algal blooms are significant events in lakes or seas; what kinds of organisms cause these blooms and their impact on the environment.click here


16.  Discuss the evolution of mitochondria and chloroplast as part of the cell, and What morphological innovations evolved in protists?click here


17.  You and your friends go to a seaside resort as part of a fun trip where you indulge in various delicious seafood. The next day all of you fall sick. You think this is due to seafood allergy, but diagnosis reveals that you all were poisoned. What could be the reason for poisoning due to seafood consumption? Discuss in detail.click here


18.  Fungi-like saprophytes are efficient decomposers. They carry out extracellular digestion i.e. breaking complex molecules like starch or cellulose into simple sugars for assimilation outside the cell. Design a simple experiment to visualize this phenomenon of digestion.click here


19.  In ecological prospective what determines the distribution and abundance of organisms?click here


20.  Discuss in detail the evolutionary thought related to the natural selection process.click here


21.  Levels of homology exist in all living organisms and discuss in detail with different kinds of homology exist with suitable examples.click here


22.  What is Multidrug-resistant tuberculosis, and how did Mycobacterium tuberculosis become resistant to antibiotics?click here


23.  Explain why the over-prescription of antibiotics by doctors, or the overuse of everyday soaps containing antibiotics, can be a health risk.click here

 

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