Why do cells need catalysts for many of the chemical reactions they run? What types of molecules function as catalysts in cells?
What will be an ideal response?
Reacting molecules need to have a certain activation energy in order for the reaction to actually happen?this is the energy required for the initial breaking of bonds. Unfortunately for living organisms, the activation energy for many essential chemical reactions is very high. Cells rely on catalysts that lower the activation energy of reactions and allow them to happen more quickly. These catalysts are large, complex proteins called enzymes.
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?There are timber, mineral, fossil fuel, and other resources found on or under many of the earth's remaining wild land areas, making preservation of undisturbed ecosystem controversial.
Answer the following statement true (T) or false (F)
Subduction zones are found near passive margins.
Answer the following statement true (T) or false (F)
How many general transcription factors are there?
A) 1 B) 2 C) 4 D) 6
A simple linked feeding series such as grass-rabbit-wolf is known as a(n):
A. Energy cycle B. Food web C. Food chain D. Food cycle E. Carbon cycle