Know the parts of animal and plant cells, what each does, and how specialised cells are adapted.
What you practise
Parts of a cell and their jobs
Plant cells and animal cells compared
Specialised cells
Builds from the nucleus to ribosomes and cells such as ciliated cells. Practice moves up a level when a round goes well and down when it does not.
Sample questions
Each sample comes with the method and the reason every wrong option is wrong. Real practice rounds are ten questions at your level.
Sample question, level 2 of 5
Which specialised cell has a tail so that it can swim?
root hair cell
sperm cell
guard cell
nerve cell
red blood cell
Show the answer and method
Answer: B, sperm cell
The method: The sperm cell has a tail so that it can swim.
Why the other options are wrong:
A, root hair cell: The root hair cell has a long thin extension, giving a large surface area for absorbing water, so it is adapted for a different job.
C, guard cell: The guard cell swells and shrinks to open and close the pores on a leaf, so it is adapted for a different job.
D, nerve cell: The nerve cell is long and thin so that it can carry electrical impulses, so it is adapted for a different job.
E, red blood cell: The red blood cell has no nucleus, so there is more room to carry oxygen, so it is adapted for a different job.
Sample question, level 4 of 5
How is a palisade cell adapted for its job?
It has a tail so that it can swim
It swells and shrinks to open and close the pores on a leaf
It is packed with chloroplasts to absorb light for photosynthesis
It has tiny hairs that sweep mucus along
It has no nucleus, so there is more room to carry oxygen
Show the answer and method
Answer: C, It is packed with chloroplasts to absorb light for photosynthesis
The method: The palisade cell is packed with chloroplasts to absorb light for photosynthesis.
Why the other options are wrong:
A, It has a tail so that it can swim: That describes the sperm cell, not the palisade cell.
B, It swells and shrinks to open and close the pores on a leaf: That describes the guard cell, not the palisade cell.
D, It has tiny hairs that sweep mucus along: That describes the ciliated cell, not the palisade cell.
E, It has no nucleus, so there is more room to carry oxygen: That describes the red blood cell, not the palisade cell.
