13. Anjali wanted to eat rice and kidney bean (rajmah). She requested her mother to
cook the same on next day. At night her mother took a cup of kidney beans and put
them in a container having some water and the kept the container covered overnight.
Next day it was observed that the kidney beans got swollen and were ready to be
cooked. What is this phenomenon due to which kidney beans got swollen is known
as?
Osmosis
(ii) Diffusion
(iii) Endosmosis
(iv) Exosmosis
Answers
Answer:
Kidney beans are quiet hard and cooking them in that stage requires more time and energy (fuel). On the other hand, soaking the kidney beans overnight, causes them to absorb water and swell up. These soaked kidney beans cook fast and do not require much fuel as well.
(b) The scientific phenomenon involved in the above process is osmosis.
(c) Grams or Choley/Chaney are also cooked in the same way.
Explanation:
option (iv) is the answer
Answer:
The phenomenon due to which kidney beans got swollen is known as Endosmosis.
Explanation:
Reason:
Kidney beans have a porous plasma membrane and a tight cell wall.
After soaking kidney beans for an entire night, water diffuses through them through the process of endosmosis, making the beans palatable when cooked. White gram is another food cooked this way.
Endosmosis:
The water inside a cell moves around and expands when it is submerged in a hypotonic solution.
Endosmosis is the term used to describe this movement of water within a cell. This occurs as a result of the surrounding solution's lower solute content than the cytoplasm's.
Example: When placed in a concentrated salt solution, raisins shrink.