Download Biology worksheet for class IX

Biology worksheet for class IX
Assignment – I
NOTE-This task is to be done in the HW notebook.
1) Draw the well labeled diagrams of following:
a) Prokaryotic cell
b) Plant cell
2) Answer the following questions:
1) What would happen if:
a) there is no golgi apparatus in the cell
b) cell membrane ruptures or break down
2) a) A cell placed in a solution swells up. What kind of solution is it?
Why does it happen?
b) What happens to a plasmolysed cell when it is placed in water?
3) How is Endoplasmic Reticulum
a) Membrane biogenesis
b) Liver detoxification
responsible for :
Biology Worksheet for class IX
Assignment - II
NOTE-This task is to be done in the practice notebook.
1) Answer the following questions in brief:
a)
Give an example of unicellular organism.
b)
Name the process that plays an important role in gaseous exchange
between the cells and their environment.
c)
What is cellulose?
d)
Write the full form of DNA.
e)
Which organelle is called suicide bag of the cell?
f)
What is meant by endocytosis?
2) State any two reasons for plant cells to have large central vacuole.
3) How do substances like Co2 and water move in and out of the cell?
4) How does amoeba obtain its food?
5) Name two nucleic acids present in the cell and write their function.
6) What is meant by a nucleiod?
7) Differentiate between prokaryotic and eukaryotic cell.
8) Describe the structure of mitochondria and explain how its structure
supports the function it performs.
9) What are plastids? Name different types of plastids and write their functions.
10) How does lysosomes act as waste disposal system of the cell?
11) Write the full forms of following:
a) ATP b) DNA c) RNA
12) Explain the significance of membrane bound organelles in living
organisms.
13) Describe the structure of nucleus. Write the significance of nucleus for a
cell.
14) Differentiate between Chromatin and chromosomes
15) Write the significance of cell wall for plant cell.
16) What would happen if an animal cell is placed in a) hypertonic solution ii)
Isotonic and iii) Hypotonic solution