Food Production
Muhtasari
Almost everything you eat depends on farming techniques that push biological processes to their limits. From glasshouses that trap warmth and carbon dioxide to microorganisms that transform flour into bread and milk into yoghurt, food production sits at the intersection of ecology, biochemistry and engineering.
In this lesson you will explore how farmers manipulate growing conditions to maximise crop yield, weigh the trade-offs between chemical pesticides and biological control, and discover how yeast and bacteria are harnessed in industrial fermenters to produce everyday foods at scale.
Malengo
- Describe how glasshouses and polythene tunnels can be used to increase the yield of certain crops
- Understand the effects on crop yield of increased carbon dioxide and increased temperature in glasshouses
- Understand how the use of fertiliser can increase crop yield
- Understand the reasons for pest control and the advantages and disadvantages of using pesticides and biological control with crop plants
- Understand the role of yeast in the production of food including bread
- Investigate the role of anaerobic respiration by yeast in different conditions
- Understand the role of bacteria (Lactobacillus) in the production of yoghurt
- Understand the use of an industrial fermenter and explain the need to provide suitable conditions
Ramani ya mawazo
Mada hii imechorwa ili uone jinsi mawazo yanavyounganika.
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Kadi za kumbukumbu
Mazoezi ya haraka ya kumbukumbu kuhusu kinachopimwa katika mada hii.
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Maelezo ya Somo
Dokezo Kamili la Somo Linapatikana kwenye Programu ya Green Bridge
Pata programu ya Green Bridge CBT kwenye simu au kompyuta yako kwa maktaba kamili ya IGCSE: mitihani ya miaka iliyopita, miongozo ya usahihishaji, ramani za mawazo, kadi za marudio na masomo ya sauti.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Food Production. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- Which condition can a farmer control in a glasshouse but NOT in an open field? A) Soil type B) Carbon dioxide concentration C) Day length D) Seed variety Answer: B
- What is the main role of fertilisers in crop production? A) To kill insect pests B) To increase the rate of respiration C) To replace mineral ions in the soil D) To prevent fungal diseases Answer: C
- Which organism is used in the production of yoghurt? A) Yeast B) Lactobacillus C) Penicillium D) E. coli Answer: B
- During bread making, what causes the dough to rise? A) Ethanol produced by yeast B) Oxygen absorbed by yeast C) Carbon dioxide produced by yeast D) Lactic acid produced by bacteria Answer: C
- Which is a disadvantage of biological pest control? A) It causes chemical pollution B) It completely removes the pest population C) The introduced species may become a pest itself D) Pests develop resistance to it quickly Answer: C
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Fanyia kazi maswali haya kwenye programu
Vitabu Vinavyopendekezwa
Jifunze zaidi kutoka vyanzo huria
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Sehemu ya kitabu
Metabolism without Oxygen
Discuss the fundamental difference between anaerobic cellular respiration and fermentation
"Biology: Metabolism without Oxygen" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/7-5-metabolism-without-oxygen. Access for free at https://openstax.org/books/biology/pages/1-introduction
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Sehemu ya kitabu
Beneficial Prokaryotes
Explain the need for nitrogen fixation and how it is accomplished
"Biology: Beneficial Prokaryotes" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/22-5-beneficial-prokaryotes. Access for free at https://openstax.org/books/biology/pages/1-introduction
Vimechapishwa na mashirika mengine chini ya leseni huria na vinatajwa kama wanavyoomba. Viungo hufungua tovuti zao.
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Food Production? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
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Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
