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