Science Double Award - 4SD0 PearsonEdexcel

Food Production

Gbogbo ọrọ náà

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.

Ebumnobi

  1. Describe how glasshouses and polythene tunnels can be used to increase the yield of certain crops
  2. Understand the effects on crop yield of increased carbon dioxide and increased temperature in glasshouses
  3. Understand how the use of fertiliser can increase crop yield
  4. Understand the reasons for pest control and the advantages and disadvantages of using pesticides and biological control with crop plants
  5. Understand the role of yeast in the production of food including bread
  6. Investigate the role of anaerobic respiration by yeast in different conditions
  7. Understand the role of bacteria (Lactobacillus) in the production of yoghurt
  8. Understand the use of an industrial fermenter and explain the need to provide suitable conditions

Akọmọ Ojú-ẹkọ

A single hectare of land can feed far more people today than it could a century ago. The difference is not luck; it is applied biology. Farmers control temperature, light, carbon dioxide, nutrients and pests so that crop plants photosynthesise faster and lose less of their yield to competitors and disease. Meanwhile, microorganisms like yeast and Lactobacillus quietly do the chemistry that turns raw ingredients into bread and yoghurt.

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

Akwụkwọ ndụmọdụ zuru oke nwere eserese
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Mụọ n'ụzọ na-enweghị ịntaneti, oge ọbụla, ebe ọbụla
Ọ dị na Android, Windows, macOS, na Linux

Ayẹwo Ẹkọ

Ekele diri gi maka imecha ihe karịrị na Food Production. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

  1. 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
  2. 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
  3. Which organism is used in the production of yoghurt? A) Yeast B) Lactobacillus C) Penicillium D) E. coli Answer: B
  4. 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
  5. 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

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

Akwụkwọ ndụmọdụ zuru oke nwere eserese
Onye inyeaka mmụta AI
Mụọ n'ụzọ na-enweghị ịntaneti, oge ọbụla, ebe ọbụla
Ọ dị na Android, Windows, macOS, na Linux

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

Akwụkwọ ndụmọdụ zuru oke nwere eserese
Onye inyeaka mmụta AI
Mụọ n'ụzọ na-enweghị ịntaneti, oge ọbụla, ebe ọbụla
Ọ dị na Android, Windows, macOS, na Linux

Meecha Ajụjụ Ule Ọmarịcha

Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Food Production? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.

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