Enzymes Flashcards
Explain how temperature affects the rate of photosynthesis and its relation to enzyme structure.
Temperature can affect enzyme activity. At low temperatures, enzymes work slowly, while at high temperatures, they may denature. Enzymes have specific temperature ranges for optimal function.
Discuss how various factors, such as temperature, pH, substrate concentration, coenzymes, and enzyme poisons, can affect the rate of enzyme activity during DNA replication.
These factors can either enhance or inhibit enzyme activity, impacting the rate of DNA replication. Temperature and pH can affect enzyme structure, while coenzymes assist enzymes, and enzyme poisons hinder them.
Describe the function of lysosomes and the Golgi body in cellular functions.
Lysosomes contain digestive enzymes and break down waste, while the Golgi body modifies and sorts proteins for transport.
Explain the ‘lock and key’ and ‘induced fit’ models of enzyme activity.
In the ‘lock and key’ model, enzymes and substrates fit together like a key in a lock. In the ‘induced fit’ model, enzymes change shape upon substrate binding.
Discuss the effect of temperature on enzyme activity, including enzyme structure and function.
Temperature affects enzyme activity. As temperature increases, enzyme activity usually increases until an optimal temperature is reached, beyond which enzymes denature.
Explain how an enzyme inhibitor affects enzyme activity, with a diagram if necessary.
Enzyme inhibitors, like heavy metals, interfere with enzyme function. They can bind to the active site or elsewhere on the enzyme, preventing substrate binding and reducing activity.
