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The movement of molecules from an area of high concentration to an area of lower concentration is known as  a) osmosis  b) diffusion 

Monjur Alahi

The movement of molecules from an area of high concentration to an area of lower concentration is known as 

a) osmosis 

b) diffusion 

c) active transport 

d) phagocytosis 

A) d only

B) a, b only 

C) b only 

D) a, d only


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1 Answers

Salim Ahmed Kawsar

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Correct option is C) b only

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Osmosis occurs in this medium.  A) Solids  B) Liquids 

Correct option is B) Liquids

2 Answers 1 views
Semipermeable membrane is necessary for  A) Osmosis 

Correct option is A) Osmosis

2 Answers 1 views
The smell of perfume spread is because of –  A) Osmosis B) Diffusion 

Correct option is B) Diffusion

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Osmosis does not takes place in  A) Animal cells  B) Plant cells 

D) Dead cells

2 Answers 1 views
Identify the mismatched pair from the following.  i) Diffusion – Thomas Graham  ii) Osmosis – Mercury and Bowie 

Correct option is D) ii, iii

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Swelling of egg placed in the tap water is due to  A) osmosis 

D) endosmosis

2 Answers 1 views
After the completion of osmosis experiment in the lab, Keerthi wrote the procedure in her lab record like this : 

D) a, b, d, c, e

2 Answers 1 views
Rate of diffusion is high in  A) ink drop 

Correct option is C) oxygen

2 Answers 1 views
Rate of diffusion of gases is very high ………. because and ……….. of gas particles. 

C) higher speed, greater space

2 Answers 1 views
Statement-1. Ammonia has lower molecular mass than `N_(2)`. Statement-2. At a given temperature te rate of diffusion is inversely proportional to the

Correct Answer - A Statement-2 is the correct explanation for statement-1.

2 Answers 1 views

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