Describe the differences between an ovule, a seed and a fruit.

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2014). The mark or mark type is shown in brackets.

1. [max. 2] ovule: in ovary; contains female gamete; ref. to haploid ;
2. [max. 3] seed: ovule after fertilisation ; ref. diploid (or with ref. fruit) ; (grows) larger than ovule ; stores food / ref. cotyledons ; contains (rest of) embryo / radicle + plumule ; (surrounded by) testa ; ref. dispersal ;
3. [max. 1] fruit: seed(s) + ovary (wall)/pericarp ; ref. dispersal ;
4. [max. 4] dry;
5. light;
6. (may be) winged / hairy / feathery / helicopter / parachute ;
7. large surface area ;
8. to allow wind to detach it from parent plant;
9. to delay its descent ;
10. (allow it to be carried) long distance AW / away from parent plant ;