Some bacteria are metabolically active in hot springs because
a. They are able to maintain a lower internal temperature.
b. High temperatures make catalysis unnecessary.
c. Their enzymes have high optimal temperatures.
d. Their enzymes are completely insensitive to temperature.

Guida verificata passo dopo passo

Understand that enzymes are proteins that catalyze biochemical reactions and are sensitive to temperature changes.

Recognize that each enzyme has an optimal temperature range where it functions most efficiently. This is crucial for bacteria living in extreme environments like hot springs.

Consider that bacteria in hot springs must have enzymes adapted to high temperatures, allowing them to remain metabolically active despite the heat.

Evaluate the options given: a) maintaining a lower internal temperature is unlikely due to the surrounding environment, b) catalysis is necessary for metabolic processes, c) enzymes with high optimal temperatures would be beneficial, d) complete insensitivity to temperature is improbable.

Conclude that the most plausible explanation is that these bacteria have enzymes with high optimal temperatures, allowing them to thrive in hot springs.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.

Durata del video:

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Enzyme Optimal Temperature

Enzymes are proteins that catalyze biochemical reactions, and each enzyme has an optimal temperature at which it functions most efficiently. In thermophilic bacteria, enzymes are adapted to high temperatures, allowing them to remain active and stable in hot environments like hot springs. This adaptation is crucial for the survival and metabolic activity of these bacteria.

Video consigliato:

02:25

Enzymes Example 1

Thermophilic Bacteria

Thermophilic bacteria are microorganisms that thrive at relatively high temperatures, typically between 45°C and 80°C. These bacteria have evolved to survive and grow in extreme heat, such as that found in hot springs, by developing specialized proteins and enzymes that remain stable and functional at elevated temperatures.

Video consigliato:

04:46

2) Transform Recombinant DNA into Bacteria

Enzyme Sensitivity to Temperature

Enzymes are sensitive to temperature changes, which can affect their structure and function. While most enzymes denature at high temperatures, thermophilic bacteria possess enzymes that are less sensitive to heat, allowing them to maintain their catalytic activity in hot environments. This insensitivity is a key adaptation for life in extreme thermal conditions.

Video consigliato:

02:25

Enzymes Example 1

Pratica correlata

Domanda del libro di testo

Most cells cannot harness heat to perform work because

a. Heat does not involve a transfer of energy.

b. Cells do not have much thermal energy; they are relatively cool.

c. Temperature is usually uniform throughout a cell.

d. Heat can never be used to do work.

3598

views