Narration short question for any job exam preparation 

Office Assistant Cum-Computer Operator Written Exam Preparation 

cells

 

1.  What is the cell  called ?

Answer:  Cell  is the structural and functional unit of living organism.      

2  What is the  largest  cell   ?

Answer:  Camel  egg  .

3.  What is the  smallest  cell  ?

 Answer: Bacteria cells called   mycoplasma golisepticum  .  

4.  What is the smallest cell in the human body  ?   

 Answer:  White  blood cells

5.  What is the  longest  cell  ?

 Answer:  Human  nerve  cell  which  is one  meter.

6.  What is the number of cells in the body of an  adult   ?    

Answer:  6  Lakh  Crore  to  10  Lakh  Crore

7.  Give an example of a single -celled  animal  ? 

 Answer:  bacteria  amoeba  malaria  germs  etc.

8.  Structure of nucleus  According to  , how many types of cells  and what ?    

 Answer:  Two  types  namely:

Aprimitive  or prokaryotic cells     btrue  or  eukaryotic  cells  .

 9. Mention the characteristics of primitive cells  ?  

  Answer: The characteristics of primitive cells  are 

Structure:  Simple  and  uncomplicated  .

Nucleus : No  distinct  nucleus  .  DNA  molecules  perform the functions of chromosomes  .  

Chromosomes are  primitive in  nature.  A single  DNA  molecule  performs the function of a chromosome  .  

 Without ribosomes  There are no  cell  organelles  other .

Amitosis  is the process of  cell  division  .

10.  Give examples of primitive cells  ? 

Answer:  Bacteria  and  yeast

  Write the characteristics of real cells  ? 

genuine  The characteristics  cells are :

Structure:  Relatively  complex

Nucleus : There is  definite  nucleus  .  Nuclear  membrane  and  nucleolus  .

Chromosomes  are organized.

 Different types of  cytoplasm   organelles  in

Division  Processes  : Mitosis  and  Meiosis  process  .

 What are the components of the cell wall ?     composed  of ?

Answer:  Cell wall  follows   is  made up components

Plant  cells : cellulosehemicellulose  pectose Cells  ,  cells : Carbohydrates suberin  ,  etc. 

Fungi:  Chitin   Carbohydrate called  of  .

Bacteria :  proteinslipidsand  polymers  : Made up  .

 

mitrocondia

 

 The cytoplasm of living plant  and  animal  cells  is covered with small rods and cones            minute  called .

Amitosis  is cell  division

 Below are the  characteristics of  amitosis  given  :

 The nuclear  contents of the  nucleus are first divided  directly into  two  parts

 Two cells  are formed from  one cell   

Prokaryotic  eg  bacteria  ,  yeast  ,  show division _  

 Another name for  amitosis is the process of cell division .     

 What are the characteristics of  mitosis ?

 The characteristics  of mitosis are mentioned below  :  

The daughter cell has the same  number of chromosomes as the mother cell  .   

 One per division 

Body  cells  and  reproduction    

 

 Write the  characteristics of  meiosis ?

The daughter  cell has  half the number of chromosomes as the mother cell.   

 One mother cell per division  

Only  birth

 

 What is the poison ?

 These are followed by the union of male and  female  reproductive  cells   

 What is a zygote ?

Nishek's

 What is cancer ?

 Abnormal cell growth anywhere  in the  body     uncontrolled বিভাজন

banana

 Bananas are closely spaced cells that originate from the same source  and perform the same function            বলে 

Haploid  chromosomes কি?

ক্রোমোসোমের সংখ্যা প্রজাতি নির্দিষ্ট। শুক্রাণু  ডিম্বাণু দুই ধরনের জনন কোষে ক্রোমোসোমের সংখ্যা ওই প্রজাতি নির্দিষ্ট ক্রোমোসোম সংখ্যা অর্ধেক হয় বলে একে গ্যামিটিক একক বা হ্যাপ্লয়েড সেট বলে।

একটি মানবদেহে ক্রোমোসোম সংখ্যা কত?

২৩ জোড়া ক্রোমোসোম রয়েছে।

ডি এন  এর পূর্ণরূপ কি?

ডিঅক্সিরাইবো নিউক্লিক অ্যাসিড

আর এন  এর পূর্ণরূপ কি

রাইবোনিউক্লিক অ্যাসিড

জেনেটিক ইঞ্জিনিয়ারিং কি?

একটি কোষ থেকে কোন সুনির্দিষ্ট জিন নিয়ে কোন কোষে স্থাপন  কার্যক্ষম করার ক্ষমতাকে জেনেটিক ইঞ্জিনিয়ারিং বলে। অন্যভাবে বলা যায় নতুন বৈশিষ্ট্য সৃষ্টির জন্য কোন জীবের ডিএনএ তে পরিবর্তন ঘটানোর প্রক্রিয়াকে জেনেটিক ইঞ্জিনিয়ারিং বলে।

রেস্ট্রিকশন এনজাইম কি?

JN  Chowdhury The  specific part of DNA that can be cut is called restriction enzyme           

 Write the application of genetic engineering  ?  

Genetic  engineering  has  many  applications and  some are mentioned below _ _ _       

 Creation of transgenic plants  and  animals 

 Altering  bacteria for  beneficial  use  _  _

  Through biological control like insects , fungi  etc    Crop  protection

 Decomposing waste materials are  toxic    into waste

 Producers of various chemicals  such  as hormones vaccines antibiotics      , enzymes  , etc.

Fuel  generation.

Tissue  culture  technology What is ?

সাধারণভাবে উদ্ভিদ টিস্যু কালচার বলতে উদ্ভিদের যে কোন বিভাজন অঙ্গ থেকে শীর্ষ মুকুল কক্ষমুকুল কচিপাতা ইত্যাদি বিচ্ছিন্ন কোনো সম্পর্ক পূর্ণ জীবাণুমুক্ত মিডিয়াম কালচার করাকে বুঝায়  এরূপ কালচার পদ্ধতির মাধ্যমে উল্লিখিত টিস্যু থেকে নতুন চারা উদ্ভিদ উৎপাদন করা টিস্যু কালচার পদ্ধতির প্রাথমিক উদ্দেশ্য 

টেস্টটিউব শিশুর কি?

For  couples who can not give birth for any reason , an egg of the  couple is taken out of the body and placed in a test tube with the husband's sperm . After two or three days , the child born by placing the egg and sperm in the uterus is called a test tube baby .                                               

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