Short Q/A Biotechnology - Students Free Notes

Why are bacteria commonly used in biotechnology?

Bacteria are commonly used in biotechnology because they reproduce rapidly, are easy to manipulate genetically, and can produce a wide variety of substances, including proteins, enzymes, and antibiotics. Related Questions: How is insulin produced using biotechnology? Name the organism used in fermentation for making bread, alcohol, cheese, and yogurt. Name the medical products produced by … Read more

Define recombinant DNA and give one example of its application.

Recombinant DNA is DNA that has been artificially formed by combining genetic material from different sources. An example of its application is the production of human insulin in bacteria for the treatment of diabetes. Related Questions: Name the organism used in fermentation for making bread, alcohol, cheese, and yogurt. Name the medical products produced by … Read more

What are two advantages of using microbes in industrial processes?

Microbes can produce enzymes and chemicals efficiently and at low costs. They can also be genetically engineered to produce products that are difficult or expensive to obtain from other sources. Related Questions: Name the organism used in fermentation for making bread, alcohol, cheese, and yogurt. Name the medical products produced by large-scale fermentation. How has … Read more

What are restriction enzymes, and why are they important in genetic engineering?

Restriction enzymes are proteins that cut DNA at specific sequences. They are crucial in genetic engineering because they allow scientists to cut and manipulate DNA in a precise manner, facilitating the insertion of foreign genes into organisms. Related Questions: Name the organism used in fermentation for making bread, alcohol, cheese, and yogurt. Name the medical … Read more

The flowchart is showing anaerobic respiration. Identify the processes A, B, and C. Name the products (i) and (ii) produced by these processes.

In anaerobic respiration, common processes include: A: Glycolysis (the breakdown of glucose into pyruvate). B: Fermentation (conversion of pyruvate to products like ethanol or lactic acid). C: End product formation, such as ethanol (in yeast) or lactic acid (in muscles or bacteria). The products could be: (i) Ethanol or Lactic Acid. (ii) Carbon dioxide or … Read more

The diagram shows an important step of genetic engineering. Name the structures P, Q, and R. What is the next step of this process?

Without the diagram, I can only give a general answer. Typically, in genetic engineering: P could be a plasmid (a vector used to transfer genes). Q could be a gene of interest that is to be inserted. R could be a restriction enzyme used to cut the DNA at specific points. The next step is … Read more

Yogurt manufacture requires a temperature of around 40°C. Explain precisely why this is the best temperature to use.

A temperature of 40°C is ideal because it is optimal for the growth of the bacteria used in yogurt production (Lactobacillus species), allowing them to ferment the milk and produce lactic acid, which gives yogurt its texture and tangy flavor Related Questions: Name the organism used in fermentation for making bread, alcohol, cheese, and yogurt. … Read more

Give three examples of traditional foods made with the help of microbes.

Bread, cheese, and yogurt are traditional foods made with the help of microbes. Microbes are involved in baking and dairy products: Baking: Yeast (Saccharomyces cerevisiae) is used in bread making. Dairy products: Bacteria like Lactobacillus and Streptococcus are involved in yogurt and cheese production. Source of the sugars that are fermented in brewing: The sugars … Read more

Microbes are commonly used in biotechnology. What are the advantages of each of them?

Microbes can reproduce quickly: They have a rapid growth rate, making them ideal for industrial processes. Microbes can grow easily on waste material: They can metabolize a variety of organic substances, including waste, reducing environmental pollution. Microbes are very efficient protein producers: Microbes can produce large amounts of proteins, enzymes, and other products quickly and … Read more