Fall ACP Review 24.25 (part 2 of 3)

Front

What are enzymes?

Back

Enzymes are biological catalysts that speed up chemical reactions in living organisms without being consumed in the process.

Front

What is the role of enzymes in chemical reactions?

Back

Enzymes reduce the activation energy required for a reaction to occur, allowing the reaction to proceed more quickly.

Front

What happens to enzyme activity as temperature increases?

Back

Enzyme activity generally increases with temperature up to a certain point (optimal temperature), after which it may decrease due to denaturation.

Front

What is the optimal temperature for enzyme activity?

Back

The optimal temperature for many enzymes is around 30°C, where they perform best.

Front

What is the equation for cellular respiration?

Back

C6H12O6 + 6O2 --> 6CO2 + 6H2O + ATP.

Front

What is mRNA?

Back

mRNA (messenger RNA) is a type of RNA that carries genetic information from DNA to the ribosome, where proteins are synthesized.

Front

How do you transcribe DNA to mRNA?

Back

To transcribe DNA to mRNA, replace each DNA base with its complementary RNA base: A with U, T with A, C with G, and G with C.

Front

What is the complementary mRNA sequence for the DNA strand AACTGAA?

Back

The complementary mRNA sequence is UUGACUU.

Front

What does it mean for an enzyme to be reusable?

Back

Enzymes can be used multiple times in reactions without being permanently altered or consumed.

Front

What is activation energy?

Back

Activation energy is the minimum energy required for a chemical reaction to occur.