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Biology Chapter 2 Quiz

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Questions and Answers

Which of the following describes the process of dehydration synthesis?

The process of adding water to split molecules apart.

The formation of large molecules by combining smaller units and releasing water. (correct)

The breakdown of polymers into monomers.

The conversion of glucose into energy.

What is the primary purpose of enzymes in biological reactions?

To serve as products in metabolic pathways.

To act as substrates in reactions.

To increase the activation energy required for reactions.

To speed up the reactions by lowering the activation energy. (correct)

Which type of transport requires energy to move substances across a membrane?

Facilitated diffusion

Passive transport

Osmosis

Active transport (correct)

What is the main difference between prokaryotic and eukaryotic cells?

Prokaryotes are generally smaller and do not contain membrane-bound organelles. Signup and view all the answers

Which stage of the cell cycle is characterized by DNA replication?

Interphase Signup and view all the answers

What is the function of NADPH during photosynthesis?

To carry electrons and provide reducing power. Signup and view all the answers

What is the primary function of ribosomes?

To synthesize proteins. Signup and view all the answers

Which type of mutation involves a change in a single nucleotide?

Point/substitution mutation Signup and view all the answers

What is generated during cellular respiration?

Carbon dioxide and water Signup and view all the answers

What functions do exons serve in gene expression?

They are coding sequences that are expressed in the final mRNA. Signup and view all the answers