Advantages of SCP

Q. Which of the following statements regarding single cell protein (SCP) is/are incorrect?

1. Methylophilus methylotrophus is an alga from which SCP can be derived
2. Blue-green algae like Spirulina can be grown easily on materials like waste water from potato processing plants (containing starch), straw, molasses, etc.
3. 250 g of Methylophilus methylotrophus can produce 25 tonnes of protein in the same amount of time when a 250 kg cow produces 200 g of protein
4. SCP can be used as an alternate source of protein for both humans and animals

Q. Choose the incorrect statement w.r.t. bio macromolecules.

जैव वृहदअणुओं के संदर्भ में गलत कथन का चयन कीजिए।

1. Proteins may possess more than one type of covalent bonds in their structures
   
   प्रोटीन की संरचनाओं में एक से अधिक प्रकार के सहसंयोजक बंध हो सकते हैं
2. Glycosidic bonds are present in all oligosaccharides, polysaccharides and in nucleic acids
   
   ग्लाइकोसिडिक बंध सभी ओलिगोसैकेराइड्स, पॉलीसैकेराइड्स और न्यूक्लिक अम्लों में उपस्थित होते हैं
3. dsB-DNA can exhibit the secondary structure
   
   dsB-DNA द्वितीयक संरचना प्रदर्शित कर सकता है
4. All bonds present in tertiary structure of protein may be present in primary structure of protein
   
   प्रोटीन की तृतीयक संरचना में उपस्थित सभी बंध, प्रोटीन की प्राथमिक संरचना में भी उपस्थित हो सकते हैं

Q. Define the terms : (i) Hydroponics (ii) Micronutrients (iii) Macroelements (iv) Carnivorous plants (v) Nutrient .

Q. Which one of the following is not used as biofertiliser?

1. Rhizobium
2. Anabaena
3. Nostoc
4. Bacillus thruingiensis

Q. Which one of the following cannot be suggested as advantages of SCP?

1. Do not require special culture media
2. Reduces environmental pollution
3. Largely meet protein requirement of human
4. Many enzymes, bioactive molecules etc can be harnessed industrially

Q. The doctor has recommended Spirulina supplement to Kavita's father because he is weak and does not lead a normal life.
(i) Why did the doctor recommend Spirulina?
(ii) It is also useful for Kavita.
(iii) Can it be produced in the laboratory?

Q.

Single cell protein production is more advantageous than traditional method of protein production because

1. Microorganisms usually have a much higher protein content of 30-70%.
2. Microorganisms can utilize a broad spectrum of raw materials as carbon sources including alkanes, methanol, methane, ethanol and sugars.
3. All of the above.
4. Microorganisms have a much higher growth rate.

Q. Identity the correct statement(s) related to the advantage(s) of SCP.

1. SCP production using waste materials also reduces environmental pollution.
2. All of the above
3. Large quantities of protein can be produced within a small space.
4. Microbes used for SCP production can be grown on wastewater, animal manure, sewage, molasses, straw, etc.

Q. 'Large scale cultivation of Spirunlia is highly advantageous for human population". Explain giving two reasons.

Q. Probiotics are

1. Live microbial food supplement
2. New kind of food allergens
3. Cancer inducing microbes
4. Safe antibiotics

Q. Assertion : Use of single cell protein (SCP) can help to reduce environmental pollution.
Reason : Organisms used to produce SCP can be easily grown on straw, molasses, waste water from potato processing plants, sewage, etc.

1. Assertion is a true statement but reason is false
2. Both assertion and reason are false
3. Both reason and assertion are true, and the reason is not the correct explanation of the assertion
4. Both assertion and reason are true and reason is the correct explanation of the assertion

Q. An alga which can be employed as food for human being is

1. Chlorella
2. Ulothrix
3. Polysiphonia
4. Spirogyra

Q. Assertion :Biofortified crop is a source of higher protein, minerals and healthier fats. Reason: Azolla is biofertilizer.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. One of the alternate sources of proteins for animal and human nutrition is?

1. Single cell protein
2. Pulses
3. Nonvegetarian meal
4. Mushrooms

Q. What is economic value of Spirulina?