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Questions and Answers
Which of the following is NOT a characteristic of a covalent bond?
Which of the following is NOT a characteristic of a covalent bond?
- Relatively low melting and boiling points
- Sharing of electron pairs
- Formation between non-metal atoms
- High electrical conductivity (correct)
In the context of 11th-grade science, which of the following statements about enzymes is true?
In the context of 11th-grade science, which of the following statements about enzymes is true?
- Enzymes increase the activation energy of a reaction
- Enzymes are consumed during chemical reactions
- Enzymes are specific in their action (correct)
- Enzymes only function in acidic environments
Which of the following is true about the structure of DNA?
Which of the following is true about the structure of DNA?
- Thymine is found in RNA but not in DNA
- Adenine pairs with guanine in DNA
- DNA has a double helix structure held together by hydrogen bonds (correct)
- DNA is a single-stranded helix
