Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

GCSE Science - Biology > Diffusion > Flashcards

Diffusion Flashcards

You may prefer our related Brainscape-certified flashcards:
GCSE Geography - AQA flashcards AP® Biology flashcards GCSE Religious Studies - Edexcel Route B flashcards GCSE Religious Studies - Eduqas Route A flashcards GCSE Religious Studies - Edexcel Route A flashcards GCSE Religious Studies - Eduqas Route B flashcards Biology 101 flashcards
1
Q

What is diffusion?

A

The gradual movement of particles where there are LOTS of them to where there are FEWER of them - NATURAL TENDENCY for stuff to SPREAD OUT.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the DEFINITION of diffusion?

A

DIFFUSION is the SPREADING OUT of PARTICLES from an area of HIGHER CONCENTRATION to an area of LOWER CONCENTRATION

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Why can diffusion happen in solutions and gases?

A

Because particles in these substances are free to MOVE ABOUT randomly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What will happen to the perfume particles in the air?

A

The perfume particles will diffuse in the air - this is the SIMPLEST TYPE of diffusion when GASES diffuse through each other.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the CONCENTRATION GRADIENT?

A

The DIFFERENCE in concentration between two substances

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does a bigger concentration gradient do to the diffusion rate?

A

Bigger concentration gradients means FASTER diffusion rate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly

GCSE Science - Biology (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions