TrueYou Workshop Quiz

1. A molecule

• a) Is the smallest unit of an element.

• b) Is made up of two or more atoms.

• c) Is made up of identical or different atoms.

• d) All a), b) and c) answers are correct.

• e) Exactly two answers are correct.

2. An animal cell

• a) Is surrounded by a cell membrane.

• b) Has a nucleus.

• c) Has chloroplasts.

• d) All a), b) and c) answers are correct.

• e) Exactly two answers are correct.

3. Large biological molecules

• a) Include carbohydrates, lipids, proteins, and nucleic acids.

• b) Are polymers made up of monomers.

• c) May be linear or branched chains.

• d) All a), b) and c) answers are correct.

• e) Exactly two answers are correct.

4. Which is the best correct answer?

• a) Protein is a biopolymer made up of 20 different types of amino acids.

• b) RNA is a biopolymer made up of four (4) different types of nucleotides.

• c) Carbohydrate is a biopolymer made up of different types of simple sugars.

• d) All a), b) and c) answers are correct.

• e) Exactly two answers are correct.

5. In an animal cell,

• a) DNA is tightly bound to proteins to form chromatin.

• b) Chromatin is thicker and more clearly visible than chromosomes.

• c) Genes on DNA tightly bound to proteins in chromatin can be expressed.

• d) All a), b) and c) answers are correct.

• e) All a), b) and c) answers are wrong.

6. In a DNA double helix,

• a) Two complementary linear DNA strands base pair with each other.

• b) A pairs with U and G pairs with C.

• c) The nucleotide sequence or base sequence stores genetic information.

• d) All a), b) and c) answers are correct.

• e) Exactly two answers are correct.

7. Metabolism

• a) Involves chemical reactions that only lead to degradation of metabolites.

• b) Involves only hormones to carry out various steps in a metabolic pathway.

• c) Produces building blocks, energy, and metabolic wastes to sustain life.

• d) All a), b) and c) answers are correct.

• e) All a), b) and c) answers are wrong.

8. Which is the best correct answer?

• a) DNA makes RNA through the process of translation.

• b) RNA is a nucleic acid and contains four (4) monomers: A, C, G, and U.

• c) RNA makes protein through the process of transcription.

• d) DNA can base pair with RNA, with A pairing with T and G with C.

• e) Exactly two answers are correct.

9. Gene expression

• a) Refers to transcription, when the genetic information in DNA is changed to RNA.

• b) Must always lead to protein production.

• c) Cannot be controlled, i.e., cannot be switched on or off.

• d) All a), b) and c) answers are correct.

• e) Exactly two answers are correct.

10. Which is the best correct answer?

• a) A mutation is a heritable change in the genetic material.

• b) A base substitution (e.g., G is replaced with T) is a point mutation.

• c) A point mutation may involve an addition or deletion of a nucleotide.

• d) All a), b) and c) answers are correct.

• e) All a), b) and c) answers are wrong.