What type of cell is this?
A nerve cell
Chemical signals travel down the axon of this cell. [True / False]
False - electrical signals travel down the axon
The synapse pass chemical signals between cells. [True / False]
True
Which specialised animal cells have a large surface area, haemoglobin and no nucleus?
Red blood cell
Which specialised animal cell has enzymes to digest cell membrane in its tip and a tail for swimming?
A sperm cell
Which specialised animal cells have many mitochondria to provide energy for the cell to contract?
A muscle cell
Which plant cells can open and close to allow gas exchange and control water loss?
The guard cells
What is it called when cells divide to produce two identical daughter cells.
Mitosis
A student leaves a piece of potato in 0.2 mol dm-3 concentration of sugar solution. Explain why the potato increases in mass!
Water moves into the potato cells via osmosis, so the potato gains mass.
