Consider the following statements a.Plant cells have cnetrioles which are absent in almost all animal cells b.Ribosomes are the site of protein synthesis c.The middle lamella is the layer mainly of calcium carbonate which holds the different neighbouring cells together d.In animal cells steroidal hormones are sythesised by smooth endoplasmic reticulum

1.  (a) and (b) only are correct

2.  (c) and (d) only are correct

3.  (b) and (d) only are correct

4.  (a) and (d) only are correct

5.  (b) and (c) only are correct

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5
Correct Answer :

(b) and (d) only are correct


Explanation :
No Explanation available for this question

Which one of the following organelles is not surrounded by any membrane

1.  Ribosome 

2.  mitohchondrion

3.  Endoplasmic recticulum

4.  Vacole

5.  Chloroplasts

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5
Correct Answer :

Ribosome 


Explanation :
No Explanation available for this question

The name chromatin was coined by

1.  Robert brown

2.  Flemming

3.  camillo golgi

4.  Rudolf Virchow

5.  George palade

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5
Correct Answer :

Flemming


Explanation :
No Explanation available for this question

The infoldings in mitochondria are known a

1.  Cistrenae

2.  Thylakoid

3.  Grana

4.  Cristae

5.  Matrix

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5
Correct Answer :

Cristae


Explanation :
No Explanation available for this question

Present in nucleolus is

1.  Golgi complex

2.  Chromosome

3.  Mitochondria

4.  Lysosome

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4
Correct Answer :

Chromosome


Explanation :
No Explanation available for this question

In animal cells, lipid-like steroidal hormones are synthesized in

1.  Rough endoplasmic reticulum

2.  Golgi apparatus

3.  Smooth endoplasmic reticulum

4.  Lysosomes

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4
Correct Answer :

Smooth endoplasmic reticulum


Explanation :
No Explanation available for this question

New cells generate from

1.  Bacterial fermentation

2.  Regeneration of old cells

3.  Pre-existing cells

4.  Abiotic material

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4
Correct Answer :

Pre-existing cells


Explanation :
No Explanation available for this question

The number of microbules in flagellum including those sharing protofilaments with each other is:

1.  10

2.  11

3.  20

4.  22

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4
Correct Answer :

11


Explanation :
No Explanation available for this question

The long and short arm of chromosomes are designated respectively as:

1.  P and q arm

2.  q and p arm

3.  l and s arm

4.  m and p arm

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4
Correct Answer :

q and p arm


Explanation :
No Explanation available for this question

Microfilaments in eukaryotic cells are made up of:

1.  Actin

2.  Albumin

3.  Fibrin

4.  Globulin

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4
Correct Answer :

Actin


Explanation :
No Explanation available for this question
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