Which of the following is not an example of a secondary metabolite produced in living organisms?

1. Lecithin 2. Alkaloids
3. Flavonoids 4. Antibiotics

Subtopic:  Lipids: Fatty Acids | Primary & Secondary Metabolites |
From NCERT
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The simplest α amino acid is:

1. Glycine 2. Alanine
3. Serine 4. Lysine
Subtopic:  Amino Acids |
 91%
From NCERT
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All the following are examples of basic amino acids except:
1. Lysine 2. Histidine
3. Arginine 4. Valine
Subtopic:  Amino Acids |
 77%
From NCERT
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Consider the given two statements:

I: Palmitic acid has 16 carbons including the carboxyl carbon.
II: Arachidonic acid has 20 carbons including the carboxyl carbon.
 
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Lipids |
 91%
From NCERT
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Consider the given two statements:
Statement I: Lipids are a part of acid insoluble fraction or the macromolecular fraction during chemical analysis of a cell.
Statement II: Lipids have a molecular weight running in thousands of Dalton.
 
1. Both Statement I and Statement II are correct and Statement II correctly explains Statement I
2. Both Statement I and Statement II are correct but Statement II does not correctly explain Statement I
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
Subtopic:  Introduction |
 78%
From NCERT
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If we consider the average composition of cells the correct descending order of the components will be:
1. Proteins → Nucleic acids → Carbohydrates → Lipids
2. Proteins → Carbohydrates → Nucleic acids → Lipids
3. Lipids → Carbohydrates → Nucleic acids → Proteins
4. Carbohydrates → Proteins → Lipids → Nucleic acids

Subtopic:  Introduction |
 61%
From NCERT
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Consider the given two statements:
Statement 1: Certain amino acids are essential for our health.
Statement 2: Only such amino acids are used to make proteins in our body according to our own genetic code.
 
1. Both Statement 1 and Statement 2 are correct and Statement 2 correctly explains Statement 1
2. Both Statement 1 and Statement 2 are correct but Statement 2 does not correctly explain Statement 1
3. Statement 1 is correct but Statement 2 is incorrect
4. Statement 1 is incorrect but Statement 2 is correct
Subtopic:  Amino Acids |
 64%
From NCERT
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Identify the correctly matched pair/s:
I: GLUT-4 Enables glucose transport out of the cells
II: Collagen Most abundant protein in animal world
III: RuBisCO Most abundant protein in the whole of the biosphere
 
1. Only I 2. Only I and II
3. Only I and III 4. Only II and III
Subtopic:  Proteins |
 86%
From NCERT
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Consider the given two statements:
Statement 1: The right end of the glycogen molecule is called the reducing end and the left end is called the non-reducing end.
Statement 2: Glycogen is a homopolymer of alpha glucose.
1. Only Statement 1 is correct
2. Only Statement 2 is correct
3. Both Statement 1 and Statement 2 are correct
4. Both Statement 1 and Statement 2 are incorrect
Subtopic:  Carbohydrates: Starch & Glycogen |
 77%
From NCERT
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Consider the given two statements:
Statement I: Iodine test can detect the presence of starch but not of cellulose in a given sample.
Statement II: Starch forms helical secondary structure and can hold iodine molecules while cellulose does not contain complex helices and hence cannot hold iodine.
 
1. Both Statement I and Statement II are correct and Statement II correctly explains Statement I
2. Both Statement I and Statement II are correct but Statement II does not correctly explain Statement I
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
Subtopic:  Carbohydrates | Carbohydrates: Starch & Glycogen |
 89%
From NCERT
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