Question 17N.2.HL.TZ0.a
| Date | November 2017 | Marks available | [Maximum mark: 3] | Reference code | 17N.2.HL.TZ0.a |
| Level | HL | Paper | 2 | Time zone | TZ0 |
| Command term | Draw, Label | Question number | a | Adapted from | N/A |
Plants have widespread influences, from food chains to climate change.
Draw a labelled diagram of the internal structure of a seed.
[3]
a. radicle/embryo root shown tapering to a root tip
b. plumule/embryo shoot shown with embryonic leaves «in a dicot seed» drawn and labelled
OR
plumule/embryo shoot shown tapering to a shoot tip «in a monocot seed»
c. seed coat/testa shown with a double line
d. cotyledon/endosperm shown as a large structure «for food storage»
e. embryo shown with both embryo root and shoot visible
Accept any dicot or monocot seed
eg:
Award [1] for any of the structure clearly drawn and labelled
Award mpe only if mpa and mpb have not been awarded and the labelling line points clearly to the plumule or radicle or both.
[Max 3 Marks]
