Components of DNA, DNA Replication & Enzymes Assessment 1

What is the primary role of enzymes?

• To provide energy for reactions

• To speed up reactions

• To store genetic information

• To transport molecules

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DOK Level 1: Recall

Which is a component of DNA?

• Ribose sugar

• Deoxyribose sugar

• Phosphate group

• Both B and C

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DOK Level 1: Recall

Explain how enzymes facilitate cellular processes.

• By breaking down waste

• By lowering activation energy

• By increasing cell temperature

• By providing structural support

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DOK Level 2: Skill/Concept

Identify the complementary DNA strand for: 5'-ATCG-3'

• 5'-TAGC-3'

• 3'-TAGC-5'

• 5'-CGAT-3'

• 3'-CGAT-5'

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DOK Level 1: Recall

What is the significance of the cell cycle in organism growth?

• It allows for the repair of damaged tissues

• It ensures genetic diversity

• It facilitates the replication of DNA

• It regulates the metabolic rate

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DOK Level 2: Skill/Concept

Which stage of the cell cycle involves DNA replication?

• G1 phase

• S phase

• G2 phase

• M phase

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DOK Level 1: Recall

Describe the role of nucleotides in specifying traits of an organism.

• They form the backbone of the DNA molecule

• They code for proteins that determine traits

• They provide energy for cellular processes

• They act as enzymes in metabolic reactions

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DOK Level 2: Skill/Concept

What is the function of helicase in DNA replication?

• To synthesize new DNA strands

• To unwind the DNA double helix

• To join Okazaki fragments

• To proofread the new DNA strands

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DOK Level 1: Recall

How do enzymes affect the rate of chemical reactions in cells?

• They increase the rate by providing energy

• They decrease the rate by stabilizing reactants

• They increase the rate by lowering activation energy

• They have no effect on the rate of reactions

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DOK Level 2: Skill/Concept

What describes the structure of DNA?

• A single-stranded helix

• A double-stranded helix

• A triple-stranded helix

• A quadruple-stranded helix

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DOK Level 1: Recall