BT402 Solved Past Papers

Pretest ….. definition thi ak word missing tha

Which one is not the ethical right of the participants .

Element ki definition thi r jst name missing tha · First step in research method … · ………offers more heterogeneity in groups · Bt402

What are the physical factors of microbial environment?2 mark

Temperature

Humidity

Ph

viscosity

Why pants use nitrates?2 mark

they need nitrates to make amino acids

Pea and bean plants use bacteria Rhizobiumwhich directly convert nitrogen into acid amino

What are the physiological factors of strain production?3 mark

What is the importance of mirobial genomics and the micmicrobial biotechnology? 5 mark

Write two names of pharmaceutical drugs produced by microbs and how these are produced?5

blood-cholesterol-lowering agents. It acts by competitively inhibiting the enzyme responsible for the synthesis of cholesterol.

mark Name the vatimns produced by microbs? 3 mark

Vitamins are some organic compounds which are capable of performing many lifesustaining functions inside our body.

These compounds cannot be synthesised by humans, and therefore, they have to be supplied in small amounts in the diet.

Microbes are capable of synthesizing these compounds and hence they can be used for the commercial production of many of the Vitamins e.g. thiamine (Vitamin B1), riboflavin (Vitamin B2)

20 Mcqs

Q1. Why plants need nitrates? (2 marks)

Q2. What are different types of microbes? (2 marks)

Q3. Role of microbes in Meat industry? (3 marks)

Meat starter cultures are used to make dried, fermented products

• such as salami, Salami is a type of cured sausage consisting of fermented and air-dried meat, typically beef or pork.
• pepperoni, Pepperoni is an American variety of salami, made from cured pork and beef mixed together and seasoned with paprika or other chili pepper.
• dried ham, Ham is pork that has been preserved through salting, smoking, or wet curing
• Lactic bacteria develop the flavour and colour of the products.
• In addition, a wide variety of moulds are used
• to ripen the surface of sausages,
• preserving the natural quality of the product
• and controlling the development of flavour

Q4. Write physiological factors in strain? (3 marks)

1. Importance of microbial genomics and microbial biotechnology (5)

2. Name two pharmaceutical drugs and describe how are they produced (5)

BT402

name two pharmaceutical drug? and how it produced from microbes?

name physiological effects in strain?

what is importance of microbial genomics and microbial biotechnology ?

How microbes are benefical for human body?

Alcholic fermentation?

Done by

• Yeast and certain bacteria
• Pyruvate is broken into alcohol and carbon dioxide
• Used in the production of beer, wine and bread

bki yad nh · Timing 12:00 · 20 Mcqs · 1. What are steroids? (2 marks) (ans on topic 26) · Steroids