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The Building Blocks of Life: Nucleotides

Questions: 5

Grade: 7

Words: 116

Text

Text & Questions

Text, Questions & Answers

Imagine you're on a construction site. The project? Building the codes of life! The workers are enzymes, and the bricks they use are called 'nucleotides'. Nucleotides are small but mighty, made up of three parts: a sugar, a phosphate, and a nitrogen base. There are four types of these 'bricks' in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T), and in RNA, uracil (U) replaces thymine. The enzymes carefully arrange them into chains, like bricklayers. This chain forms the 'blueprint' of life - the genetic information. So, next time you see a building, remember the incredible 'construction project' happening inside your cells, where nucleotides, the 'building blocks', are tirelessly working to make you, you!

Question 1

What are the 'bricks' in DNA called?

Nucleotides

Explanation. Nucleotides are the building blocks of DNA, made up of three parts: a sugar, a phosphate, and a nitrogen base.

Enzymes

Sugars

Phosphates

Nitrogen bases

Question 2

What replaces thymine in RNA?

Adenine

Cytosine

Guanine

Uracil

Explanation. In RNA, uracil (U) replaces thymine (T).

None of the above

Question 3

What is the role of enzymes in this 'construction project'?

They create the nucleotides

They destroy the nucleotides

They arrange the nucleotides into chains

Explanation. The enzymes in this 'construction project' are responsible for arranging the nucleotides into chains, like bricklayers.

They transform the nucleotides into RNA

None of the above

Question 4

What do these chains of nucleotides form?

The genetic information

Explanation. These chains of nucleotides form the 'blueprint' of life - the genetic information.

The enzymes

The building blocks of life

The DNA and RNA

All of the above

Question 5

How many types of 'bricks' are there in DNA?

Three

Four

Explanation. There are four types of these 'bricks' in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T).

Five

Six

Two

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