Biotechnology: controlled culture and useful products
| English | 中文 | Pinyin · 拼音 |
|---|---|---|
| mycoprotein/ˈmaɪkəprəʊtiːn/ | 真菌蛋白 | zhēn jūn dàn bái |
| purification/ˌpjʊərɪfɪˈkeɪʃn/ | 纯化 | chún huà |
What would explain this observation?
- The culture organism and the purified product are different. A fermenter needs conditions for growth, while harvesting makes the intended material available.
- Start with a prediction. State the quantities or features you would compare, then decide what evidence could distinguish two explanations.
Build the model
- Modern biotechnology grows microorganisms in large quantities for useful products. Fusarium is a fungus cultured on glucose syrup under aerobic conditions to produce protein-rich mycoprotein 真菌蛋白 suitable for vegetarians. Biomass is harvested and purified. Oxygen, nutrients and suitable conditions support the culture; it is not simply left to grow without control.
- mycoprotein: Protein-rich food material produced from a fungal culture; purification 纯化: Processing to separate and prepare the intended product.
Which condition belongs to the specified Fusarium process?
Genetically modified bacteria can produce human insulin, which is harvested and purified for medical use. GM crops can increase useful output or nutritional value; golden rice is the specified nutritional example. These approaches connect genetic information with practical production but still need evidence about yield, quality, cost and environmental effects.
Match each technical term to its precise meaning.
Use the definitions to distinguish related quantities and processes.
Choose evidence that can test it
- Genetically modified bacteria can produce human insulin, which is harvested and purified for medical use. GM crops can increase useful output or nutritional value; golden rice is the specified nutritional example. These approaches connect genetic information with practical production but still need evidence about yield, quality, cost and environmental effects.
- Read a supplied production flow and distinguish organism growth, product formation, harvesting and purification. Explain why an aerobic culture needs oxygen and why contamination or unsuitable temperature changes output. Use prepared data or school-approved models; no insulin production or unknown fungal culture is a classroom requirement.
Which two habits make the investigation or model in this case more defensible?
Read a supplied production flow and distinguish organism growth, product formation, harvesting and purification. Explain why an aerobic culture needs oxygen and why contamination or unsuitable temperature changes output. Use prepared data or school-approved models; no insulin production or unknown fungal culture is a classroom requirement.
Work from known quantities
- State the known values and their units. Choose the relation because its assumptions fit this case, then rearrange before substitution.
- Known: a fictional process starts with 50 kg harvested biomass and retains 40 kg after the stated purification. Recovery = 40/50×100 = 80%. This is product recovery, not protein percentage or genetic-transfer success. Those measures need different denominators and data.
A model harvests 75 kg biomass and retains 60 kg after purification. Find recovery percentage. Use the same sequence: known quantities → model → relation → substitution → unit and interpretation.
A model harvests 75 kg biomass and retains 60 kg after purification. Find recovery percentage.
The result is 80 %. Known: a fictional process starts with 50 kg harvested biomass and retains 40 kg after the stated purification. Recovery = 40/50×100 = 80%. This is product recovery, not protein percentage or genetic-transfer success. Those measures need different denominators and data.
Check the conclusion and its limits
- Fusarium is a fungus, not a bacterium or a green plant. Mycoprotein production is aerobic in this specification, so do not replace it with an anaerobic brewing account. Golden rice illustrates nutritional modification, not a claim that every GM crop solves all food-security problems.
- Return to the original observation. Explain what the result supports, which conditions it assumes, and one way to test a competing explanation.
Mycoprotein production in this specification is anaerobic bacterial brewing. This claim is false: Fusarium is a fungus, not a bacterium or a green plant. Mycoprotein production is aerobic in this specification, so do not replace it with an anaerobic brewing account. Golden rice illustrates nutritional modification, not a claim that every GM crop solves all food-security problems.
Biotechnology: controlled culture and useful products: Genetically modified bacteria can produce human insulin, which is harvested and purified for medical use. GM crops can increase useful output or nutritional value; golden rice is the specified nutritional example. These approaches connect genetic information with practical production but still need evidence about yield, quality, cost and environmental effects.
Mycoprotein production in this specification is anaerobic bacterial brewing.
Fusarium is a fungus, not a bacterium or a green plant. Mycoprotein production is aerobic in this specification, so do not replace it with an anaerobic brewing account. Golden rice illustrates nutritional modification, not a claim that every GM crop solves all food-security problems.
Protein-rich food material produced from a fungal culture: write the technical term.
mycoprotein means Protein-rich food material produced from a fungal culture.