Biology · Question 821
Proteins are polymers of:
- Monosaccharides
- Fatty acids
- Amino acids
- Nucleotides
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Correct answer: C
Amino acids
Amino acids is the answer marked in the supplied practice source.
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Biology · Question 822
Enzymes function as:
- Genetic material
- Biological catalysts
- Energy storage
- Structural components
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Correct answer: B
Biological catalysts
Biological catalysts is the answer marked in the supplied practice source.
Biology · Question 823
DNA nucleotides contain all EXCEPT:
- Nitrogenous base
- Phosphate group
- Amino acid
- Deoxyribose sugar
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Correct answer: C
Amino acid
Amino acid is the answer marked in the supplied practice source.
Biology · Question 824
The base pairing rule in DNA is:
- A-T, G-C
- A-G, T-C
- A-U, G-C
- Random
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Correct answer: A
A-T, G-C
A-T, G-C is the answer marked in the supplied practice source.
Biology · Question 825
Which is NOT a type of RNA?
- rRNA
- mRNA
- zRNA
- tRNA
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Correct answer: C
zRNA
zRNA is the answer marked in the supplied practice source.
Chemistry · Question 826
Which metal is brittle?
- Sodium
- Selenium
- Aluminium
- Magnesium
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Correct answer: B
Selenium
Selenium is the answer marked in the supplied practice source.
Chemistry · Question 827
Which metal burns with a brick red flame in air on heating?
- Iron
- Sodium
- Calcium
- Magnesium
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Correct answer: C
Calcium
Calcium is the answer marked in the supplied practice source.
Chemistry · Question 828
Which is the most reactive metal?
- Gold
- Iron
- Cesium
- Aluminium
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Correct answer: C
Cesium
Cesium is the answer marked in the supplied practice source.
Chemistry · Question 829
Which is the least conductor of heat?
- Gold
- Lead
- Iron
- Silver
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Correct answer: B
Lead
Lead is the answer marked in the supplied practice source.
Chemistry · Question 830
Which non-metal is extremely hard?
- Phosphorous
- Diamond
- Graphite
- Iodine
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Correct answer: B
Diamond
Diamond is the answer marked in the supplied practice source.