3. Movement into & out of Cells
1. Extended only
A number of red blood cells were immersed in pure water before being observed under a microscope. There was a dramatic change in their appearance.
Which row of the table below correctly describes what happened to the red blood cells?
direction of water movement | from higher to lower solute concentration | from higher to lower water potential | effect | |
A | in | ✓ | X | cells burst |
B | in | X | ✓ | cells burst |
C | out | ✓ | X | cells shrink |
D | out | ✓ | ✓ | cells shrink |
Ai এর মাধ্যমে
১০ লক্ষ+ প্রশ্ন ডাটাবেজ
প্র্যাকটিস এর মাধ্যমে নিজেকে তৈরি করে ফেলো
উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
সারা দেশের শিক্ষার্থীদের মধ্যে নিজের অবস্থান যাচাই
This question has 5 part(s).
This question has 4 part(s).
Fig. 2 shows the same palisade mesophyll cell after it has been placed in a concentrated sugar solution for twenty minutes.
Fig. 2
(i)
Describe the changes that have taken place in the cell between Fig. 1 and Fig. 2.
[2]
(ii)
Explain why the cell in Fig. 2 has changed.
[3]
(iii)
Suggest how the cell in Fig. 2 could be treated so that it returned to its original appearance in Fig. 1.
[1]
This question has 4 part(s).
