Question

(CBSE Marking Scheme, 2012)
Q.14.(i) Which cell organelle would you associate
with ATP production ? How is this organelle
able to make its own proteins?
(1) A student performed an experiment by placing
the deshelled egg in a concentrated salt
solution for five minutes. What changes did he
observe in the egg ? Give reason for the same
(Board Term-1, 2012 Set-072)
(Board Term-1, 2012 Set-046)​

Answer 1

Answer:

i) Mitochondria

Mitochondria is the organelle where aerobic respiration and ATP synthesis takes place. Mitochondria carry their own genome (DNA) and gene expression machinery. Many of the proteins inside the mitochondria are coded by its own genome and are synthesised using the ribosomes present inside it....

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1)A student performed an experiment by placing a deshelled egg in concentrated salt solution for five minutes. What change did he observe in the egg? ... The egg shrinks due to osmosis, as the concentration of water in the egg is more that the salt water.

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