Biology - 0610 CIE

Biotechnology

Akopọ

Long before anyone understood DNA, humans were using living organisms to make food: yeast to raise bread and brew alcohol, microbes to make cheese and yoghurt. Today the same idea, harnessing enzymes and microbes in industry, produces biofuels, clearer fruit juice, cleaner laundry and lactose-free milk, often in giant steel fermenters.

In this lesson you will describe the role of anaerobic respiration in yeast for biofuels and bread, the use of pectinase, lactase and the enzymes in biological washing powders, and (for [Supplement]) how fermenters mass-produce insulin, penicillin and mycoprotein under carefully controlled conditions.

Awọn Afojusun

  1. Describe the role of anaerobic respiration in yeast during the production of ethanol for biofuels
  2. Describe the role of anaerobic respiration in yeast during bread-making
  3. Describe the use of pectinase in fruit juice production
  4. Investigate and describe the use of biological washing powders that contain enzymes
  5. [Supplement] Explain the use of lactase to produce lactose- free milk
  6. [Supplement] Describe how fermenters can be used for the large-scale production of useful products by bacteria and fungi, including insulin, penicillin and mycoprotein
  7. [Supplement] Describe and explain the conditions that need to be controlled in a fermenter, including: temperature, pH, oxygen, nutrient supply and waste products

Akọ̀wé Ẹ̀kọ́

Biotechnology turns biology into industry. Each example here is an enzyme or a microbe doing a precise, useful job, and the exam expects you to name the organism or enzyme, the substrate it acts on, and the product. Get those three right and the marks follow.

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Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

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Ìdánwò Ẹ̀kọ́

Oriire fun ipari ẹkọ lori Biotechnology. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.

Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.

Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.

  1. Anaerobic respiration in yeast produces: A. ethanol and carbon dioxide B. oxygen and water C. lactic acid only D. glucose and oxygen Answer: A
  2. In bread-making, the useful product of yeast fermentation is: A. ethanol B. carbon dioxide C. lactic acid D. oxygen Answer: B
  3. Pectinase is used in fruit-juice production to: A. add sugar B. break down pectin to release and clarify juice C. kill bacteria D. add colour Answer: B
  4. Biological washing powders work poorly in very hot water because the enzymes are: A. diluted B. denatured C. frozen D. used up as fuel Answer: B
  5. [Supplement] Lactase is used to make milk suitable for lactose-intolerant people by: A. removing all sugar B. breaking lactose into glucose and galactose C. adding lactose D. killing bacteria Answer: B

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

Awọn akọsilẹ ẹkọ ni kikun pẹlu awọn aworan apejuwe
Oluranlọwọ ẹkọ ti AI ṣe agbara rẹ
Kọ ẹkọ laisi intanẹẹti, nigbakugba, nibikibi
O wa lori Android, Windows, macOS, ati Linux

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

Awọn akọsilẹ ẹkọ ni kikun pẹlu awọn aworan apejuwe
Oluranlọwọ ẹkọ ti AI ṣe agbara rẹ
Kọ ẹkọ laisi intanẹẹti, nigbakugba, nibikibi
O wa lori Android, Windows, macOS, ati Linux

Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe

Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Biotechnology? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.

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