Qualification > Sciences
Biolgy paper 1 help!
kam:
--- Quote from: IGCSE hater! on June 07, 2009, 07:41:23 pm ---yea like the single celled protein...bread production and yeast and all
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ter tell ya the truth i really am not sure
but here is wot i think it means
scp is used to make quorn which is an alternative to meat
yeast is used as a catalyst to make bread dough rise using co2
and uses anaerobic respiration
soo..
c6h1206=co2+c2h5oh
12345abc:
--- Quote from: goin4dakill on June 07, 2009, 05:16:35 pm ---
--- Quote from: 12345abc on June 07, 2009, 05:11:59 pm ---ok so u know these questions about graphs of heartbeat in paper 1,they give the graph then ask where valves close and the pulse rate...plz help...i m feeling like i know nothing :'( :'( :'(
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Ok, well.. ive never seen something like that before..but if i use my knowledge.. I would think that at every heart beat- the flow of blood increases--and therefore the pressure increases (By the way whats the variables?-like whats on the x and y axis) anyway, and valves stop blood from backflowing..so therfore everytime theres a valve, there is alot large pressure, because it propels the blood upwards and out of the heart- instead of letting it trickle back into the atrium
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no no i got it...thanku!!!!!!!!!
shagurl:
--- Quote from: nid404 on June 06, 2009, 05:08:28 am ---Green plants can make all the materials(including fats and sucrose)using water,carbon dioxide and salts. They r synthesized from sugar molecules and other molecules produced in photosynthesis.
Glucose and amino acids are transported in solution(water). Fats are synthesized for cell membrane and for storing in seeds.
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our science coordinator said look for the language! they said lacking which means that the animal has water but not is enough supply
LOOK for the language!!!!!!!!!
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