Qualification > Sciences
[IMPORTANT]20/5/2010 Biology Paper 6
Ivo:
--- Quote from: Nidzzz on May 20, 2010, 12:01:03 am ---can any1 plz help me wid this
"Describe the processes involved in the changes of directional growth of the shoot of the
seedling."
--- End quote ---
Which paper?
NidZ- Hero:
--- Quote from: Ivo on May 20, 2010, 12:03:06 am ---Which paper?
--- End quote ---
m/j 2006
Ivo:
--- Quote from: Nidzzz on May 20, 2010, 12:04:21 am ---m/j 2006
--- End quote ---
You could say something along the lines:
- Negative geotropism - grows opposite direction to gravity. This ensures shoots grow upwards getting the leaves into sunlight.
- Positive phototropism - grows towards the light. This means leaves expose maximum sruface area to light. They can therefore absorb more light more efficiently for photosynthesis.
- Mention auxin as well.
- Talk about shoots grow because cells multiply by mitosis - leading to growth.
Hargreaves:
Umm could someone just tell me all the labels when drawing a fruit or vegetable (like tomato and garlic)
q2 in M/J 08 has a question on this.
Also i've finished studying most of the stuff and am doing past papers i've done all summer examinations from 06-09 any others i should do?
NidZ- Hero:
can any 1 please explain me de stages in de population graphh plllzzzz urgent :'( :'( :'( :'( :'(
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