Diffusion is the movement of...
a substance from high concentration to low concentration
water from high concentration to low concentration
water from low concentration to high concentration
a substance from low concentration to high concentration
Osmosis is the movement of water through...
A non permeable membrane
The urinary system
A semi permeable membrane
Particles move faster when...
Heat is added
Water is added
Nutrients are added
Diffusion occurs more quickly when...
There is a longer travel distance
There is a shorter travel distance
Diffusion occurs in...
Gases
Liquids
Liquids and gases
Solids, liquids and gases
Which would you not find in a bacterial cell?
Cytoplasm
Nucleus
Chromosomal DNA
Flagella
Which would you not find in an animal cell?
Vacuole
Nucleus
Mitochondria
Cell membrane
Sperm cells are specialised cells. They have several adaptations...
Flagella, endosome, streamlined, a few mitochondria
Flagella, endosome, streamlined, lots of mitochondria
Flagella, acrosome, streamlined, a few mitochondria
Flagella, acrosome, streamlined, lots of mitochondria
Red blood cells are specialised cells. Why do they have a large surface area?
To increase the rate of oxygen diffusion
To prevent carbon dioxide entering
To make it red
To destroy pathogens
