Home
Class 9
BIOLOGY
In Column I, names of eminent scientists...

In Column I, names of eminent scientists have been given while in Column II work related to them has been mentioned. Match the columns correctly.
`{:("Column I","Column II"),("(a) Leeuwenhoek","(i) Bacteria"),("(b) Robert Brown","(ii) Cell"),("(c) Robert Hooke","(iii) Nucleus"),("(d) Purkinje","(iv) Electron microscope"),("(e) Knoll and Ruska","(v) Protoplasm"):}`

A

(a)–(i), (b)(iii), (c)-(ii), (d)-(iv), (e)-(v)

B

(a)–(i), (b)-(iii), (c)—(ii), (d)—(v), (e)—(iv)

C

(a)–(iv), (b)–(ii), (c)–(i), (d)—(v), (e)-(iii)

D

(a)–(i), (b)–(ii), (c)–(iii), (d)–(iv), (e)-(v)

Text Solution

AI Generated Solution

The correct Answer is:
To match the scientists in Column I with their respective works in Column II, we will analyze each scientist and their contributions step by step. ### Step-by-Step Solution: 1. **(a) Leeuwenhoek**: - Leeuwenhoek is known for his discovery of bacteria. He was the first to observe and describe these microorganisms using a microscope he developed. - **Match**: (a) Leeuwenhoek → (i) Bacteria 2. **(b) Robert Brown**: - Robert Brown is famous for discovering the nucleus within plant cells. He observed this structure while studying orchids. - **Match**: (b) Robert Brown → (iii) Nucleus 3. **(c) Robert Hooke**: - Robert Hooke is credited with the discovery of the cell. He coined the term "cell" after observing cork cells under a microscope. - **Match**: (c) Robert Hooke → (ii) Cell 4. **(d) Purkinje**: - J.E. Purkinje is known for coining the term "protoplasm," which refers to the living substance within a cell. - **Match**: (d) Purkinje → (v) Protoplasm 5. **(e) Knoll and Ruska**: - Knoll and Ruska are recognized for their invention of the electron microscope, which allowed for much higher resolution imaging of cells and their components. - **Match**: (e) Knoll and Ruska → (iv) Electron microscope ### Final Matching: - (a) Leeuwenhoek → (i) Bacteria - (b) Robert Brown → (iii) Nucleus - (c) Robert Hooke → (ii) Cell - (d) Purkinje → (v) Protoplasm - (e) Knoll and Ruska → (iv) Electron microscope
To match the scientists in Column I with their respective works in Column II, we will analyze each scientist and their contributions step by step. ### Step-by-Step Solution: 1. **(a) Leeuwenhoek**: - Leeuwenhoek is known for his discovery of bacteria. He was the first to observe and describe these microorganisms using a microscope he developed. - **Match**: (a) Leeuwenhoek → (i) Bacteria ...
Promotional Banner

Topper's Solved these Questions

  • CEL: THE BASIC UNIT OF LIFE

    CENGAGE BIOLOGY|Exercise CHALLENGING EXERCISE|4 Videos

  • CEL: THE BASIC UNIT OF LIFE

    CENGAGE BIOLOGY|Exercise CONSOLIDATED EXERCISE (Multiple Choice Questions with More Than One Correct Answer)|64 Videos

  • BIOLOGICAL CLASSIFICATION

    CENGAGE BIOLOGY|Exercise CHALLENGING EXERCISE|1 Videos

  • CELL CYCLE AND CELL DIVISION

    CENGAGE BIOLOGY|Exercise CHALLENGING EXERCISE |6 Videos

Similar Questions

Explore conceptually related problems

Match the column I and II {:("Column I", "Column II"),("(a) Apocarpous", "(i) Papaver"),("(b) Syncarpous", "(ii) Michellia"),("(c) Epiphyllous", "(iii) Cashew"),("(d) Cotyledon", "(iv) Aloe"):}

Match items in Column I with those in Column II: {:("Column I", "Column II"),( "(a) Bud", "(i) Maple"),( "(b) Eyes", "(ii) Spirogyra"),( "(c ) Fragmentation", "(iii) Yeast"),( "(d) Wings", "(iv) Bread mould"),( "(e ) Spores" ,"(v) Potato"),(,"(vi) Rose"):}

Match the column I with column II {:("Column I","Column II"),("(A) Thylacine ","(i) Russia "),("(B) Dodo ","(ii) Mauritius "),("(c ) Quagga","(iii) Australia "),("(D) Steller's sca cow ","(iv) Africa "):}

Match the column I with Column II:- {:("Column I","Column II"),((A)" Unicellular",(i)" Spirogyra"),((B)" Colonial",(ii)" Kelps"),((C)" Filamentous",(iii)" Volvox"),((D)" massive plant bodies",(iv)" Chlamydomonas"):}

Match the columns {:(,"Column I",,"Column II"),((a),"Echidna",(i),"Ophidia"), ((b) , "Echinus" , (ii) , "Teleostei"), ((c) , "Echeneis" , (iii) , "Platyhelminthes"), ((d) , "Echis" , (iv) , "Echinoidea"), ((e) , "Echinococcus" , (iv) , "Prototheria."):}

Match the compounds given in Column I with their uses mentioned in Column II. .

Match the items in Column I with those in Column II: {:("Column I","Column II"),("(a) Yeast","(i) Earthworm"),("(b) Diaphragm", "(ii) Gills"), ("(c ) Skin", "(iii) Alcohol"),( "(d) Leaves" ,"(iv) Chest cavity"), ("(e ) Fish", "(v) Stomata"),("(f) Frog", "(vi) Lungs and skin"):}

Match the column I and II {:("Column I", "Column II"),("(i) Chrysophyte", "(a) Gonyaulax"),("(ii) Dinoflagellate","(b) Euglena"),("(iii) Euglenoids", "(c) Diatom"),("(iv) Slime moulds", "(d) Plasmodium"):}

Match the elements given in column I with the properties mentioned in Column II.