Cells can be of many different shapes

Some common shapes of cells are

Spherical Cells

They are round in shape

Example - Red Blood Cells in Humans

Spindle Cell

They are elongated like a spindle

Example - Muscle Cell in Humans

Elongated Cell

They are shaped like a branch of a tree

Example - Nerve Cells in Humans

Different Shapes of Cells - Teachoo.jpg

 

The shape of the cell is so that it can help in its function

For Example -

  • Nerve Cells are long and branched because they need to make contact with other nerve cells and carry signals over long distances (from brain to other parts of the body)
  • Muscle cells are spindle shaped because muscles contract and relax. So, spindle shape makes it easier to contract and relax

 

What is shape of amoeba?

Amoeba is a single celled organism

Has no regular shape, it keeps on changing it's shape so it is irregular in shape

 

What is pseudopodia in amoeba?

Pseudopodia Meaning.jpg

You will observe that a varying length sticking outside the body of amoeba,this will appear and disappear as the amoeba moves or feeds

This varying length is known as Pseudopodia

 

Pseudopodia in Amoeba.png

 

 

White blood cell in human body can also change shape ?

Yes,white blood cells can change shape

 

White blood cells changing shape - Teachoo.jpg

 

 

Questions

NCERT Question 1 (b) - Indicate whether the following statements are True (T) or False (F).

Muscle cells are branched. (T/F)

View Answer

 

NCERT Question 1 (d) - Indicate whether the following statements are True (T) or False (F).

Amoeba has irregular shape. (T/F)

View Answer

 

NCERT Question 2 - Make a sketch of the human nerve cell. What function do nerve cells perform?

View Answer

  1. Class 8
  2. Chapter 8 Class 8 - Cell - Structure and Function

Transcript

Pseudopodia in Amoeba nucleus food particle Pseudopodia Food 'vacuole Pseudopodia Pseudo False Podia Feet White blood cells changing shape

About the Author

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 9 years and a teacher from the past 16 years. He teaches Spoken English, Written English, Grammar and Vocabulary at Englishtan.