Home
Class 11
BIOLOGY
Ribosomes are the granular structures fi...

Ribosomes are the granular structures first observed under the electron microscope as dense particles by:

Text Solution

Verified by Experts

The correct Answer is:
George palade (1953)
Promotional Banner

Topper's Solved these Questions

  • CELL : THE UNIT OF LIFE

    ALLEN |Exercise Cilia And Flagella, Centriole|18 Videos
  • CELL : THE UNIT OF LIFE

    ALLEN |Exercise Nucleus|41 Videos
  • CELL : THE UNIT OF LIFE

    ALLEN |Exercise Lysosome & Vacuole|8 Videos
  • BIOMOLECULES

    ALLEN |Exercise Question|64 Videos
  • DIVERSITY OF THE LIVING WORLD

    ALLEN |Exercise Exercise|140 Videos

Similar Questions

Explore conceptually related problems

To observe the asexual reproduction method-Budding in yeast. Apparatus : Test tube, conical flask, cotton plug, cover slip, glass slide, microscope, dropper. Materials : Water, sugar, dry yeast granules. Procedure : rarr Take 100mL of water in conical flask, Add 10g sugar and dissolve it to prepare sugar solution. rarr Take 20mL of sugar solution in glass test tube. Add little amount of dry yeast granules. Shake the mixture and close the test tube tightly with cotton plug. rarr Keep the test tube in warm place for 1 to 2 hours. rarr Take one or two drops of yeast solution on the glass slide with the help of dropper. rarr Now put a cover slip over it and observe under the microscope. What is seen under the microscope?

The wavelength of a probe is roughly a measure of the size of a structure that it can probe in some detail. The quark structure of protons and neutrons appears at the minute length-scale of 10^(-15)m or less. This structure was first probed in early 1970’s using high energy electron beams produced by a linear accelerator at Stanford, USA. Guess what might have been the order of energy of these electron beams. (Rest mass energy of electron = 0.511 MeV.)

If electron is accelerated under 50 KV in microscope ,find its de-Broglie wavelength.

Cut a transverse section of young stem of a plant from your school garden and observe it under the microscope. How would you ascertain whether it is a monocot stem or dicot stem? Give reasons.

In 1898 densely stained reticular structure near the nucleus in the nerve cell of owl was first observed by:

To observe filamentous algae under microscope. Apparatus : Microscope, slide, coverslip. Materials : Glycerine, pond water, blotting paper. Procedure : rarr Collect water from a lake or pond that appears dark green and contains filamentous structure. rarr Put one or two filaments on a slide. Put a drop of glycerine on the filaments and cover it with a coverslip. rarr Observe the slide under a microscope. Can you identify different tissues in the filaments ?

To observe filamentous algae under microscope. Apparatus : Microscope, slide, coverslip. Materials : Glycerine, pond water, blotting paper. Procedure : rarr Collect water from a lake or pond that appears dark green and contains filamentous structure. rarr Put one or two filaments on a slide. Put a drop of glycerine on the filaments and cover it with a coverslip. rarr Observe the slide under a microscope. Why is filament of spirogyra green in colour ?