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Respiration, stored as insoluble starch, a ; - a “ae fats or oils for storage, cellulose for cell Bs ‘ Usedito provide optimam rowers Must balance te walls, combine with nitrates from the soil et 2] Heating | temperatures for maximum plant economics of additional to form amino acids for protein synthesis 228 growth, costs of controlleg the Z 288 conditions to maximise ; S§ sci : Plants use the glucose produced in Soe Artificial | Ethances the natural sunlight photosynthesis with making isi i 25 2 i i a profit. photosynthesis in a variety of ways 82 B| lighting ee andon pl T set . . . S & Photosynthetic reaction 5 So) nee €§ o Gas can be pumped into the air The plant manufactures glucose from carbon dioxide and water using energy BE] cron | inside the greenhouse. transferred from the environment to the chloroplasts by light Sie pane r a] Sener ine light AQA GCSE BIOENERGETICS part in| 7 pat ener | Carbon dioxide + Water. ————> Oxygen + Glucose rt rom the : environment 3 ed Be + Hho litt gg cao Rate of photosynthesis 5 « a a ae eras £ B| [Graph tines Cand 0: (glucose) ae It ture i remperature is : = — = 7 a2 | ab coe Explain graphs of The rate of photosynthesis is affected by temperature, light intensity, bos S| = increased by Orta carbon dioxide concentration, and the amount of chlorophyll = Ble | | then aslight oe factors and decide Limiting factors (why the rate stops | |} 32 atosynthesis bench he Factor How the rate is affected ey ps E 22 aed limiting factor es gt As the temperature of the Photosynthesis is an enzyme Fo s £ = o environment the plant is in controlled reaction. If the ze * vempeoee"e “ “|@Sl| Sue § Graph Lines A and B: Temperature. increases rate of photosynthesis | temperature increases too much, So|\| ss Bee If carbon dioxide a P increases (up to a point) as there is | then the enzymes become £3 Sses concentration is, 3 more energy for the chemical denatured and the rate of reaction 2>||SRSEE increased from 0.01% < i VWiz23 eEERSL 2 reaction. will decrease and stop - 5 §52 g Le to 0.1% then a large 3 3 Sake g Light intensity increases as the | 33 ; geae* aoe 2| distance between the plant and the | At point X another factor is limiting | |¢ ll2 El| 922% 3 $ light sources increases As light _ | the rate of photosynthesis. This 2 g= g5a88 L - | Light intensity | intensity increases so does the rate | could be carbon dioxide is \)F2|| $8e° 8 § gs g of photosynthesis (up to a point) as | concentration, temperature or the | |¢o oe, 8 2 = ay 22 2 more energy is available for the _| amount of chlorophyll i etieoty aS Z 22 Se 2 chemical reaction. Ze Seek ge es £ o8|| $3885 2 a3 g Carbon dioxide is needed for plants | At point X another factor is limiting x 2a 3 Bass on S| carbon to make glucose. The rate of __| the rate of photosynthesis. This 22|| 32532 g dioxide photosynthesis will increase when a | could be light intensity, Sell e2ae8 g FF B| concentration | plant is given higher concentrations | temperature or the amount of oll E5SES Ss 8 of carbon dioxide (up toa point). | chlorophyll Bs\l
