Question

22. What are the consequences of the following conditions?
o(a) A cell containing higher water concentration than the surrounding medium
(b) A cell having low water concentration than the surrounding medium.
o (c) A cell having equal water concentration to its surrounding medium.
Long Answer Type Questions
1. Draw a plant cell and label the parts which
o(a) determines the function and development of the cell
(b) packages materials coming from the endoplasmic reticulum
o (c) provides resistance to microbes to withstand hypotonic external media without
bursting
o(d) is site for many biochemical reactions necessary to sustain life.
o (e) is a fluid contained inside the nucleus
2. Illustrate only a plant cell as seen under electron microscope. How is it different fron
animal cell?
3. Draw a neat labelled diagram of an animal cell.
4. Draw a well labelled diagram of an eukaryotic nucleus. How is it different from nucle
5. Differentiate between rough and smooth endoplasmic reticulum. How is endoplasmic
reticulum important for membrane biogenesis?
6. In brief state what happens when
o(a) dry apricots are left for sometime in pure water and later transferred to suga
solution?
. (b) a Red Blood Cell is kept in concentrated saline solution?
(c) the Plasma-membrane of a cell breaks down?
• (d) rheo leaves are boiled in water first and then a drop of sugar syrup is put on
(e) golgi apparatus is removed from the cell?
I
am three narts which differentia​

Answer 1

Answer:

a.turns flaccid

b.turns turgid

c.no change

1a.nucleus

b.golgi body

c.cell membrane

d.cytoplasm

e.nucleoplasm

5.rough ER contains ribosomes and smooth one does not.

6a.on putting in water it turns turgid and on putting in sugar it gets plasmolysed.

b.turns plasmolysed

c.all substances enter into cell

d.no change because the cell has died

e.transport of materials from the ER doesn't take place effectively.Synthesis of acrosome of sperm doesn't take place