CELL STRUCTURES AND FUNCTION
BIO MOLECULES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Enzymes are specific to a substrate.
|
|
|
Enzymes can operate in a wide range of conditions.
|
|
|
Enzymes are activated by neighboring molecules.
|
|
|
Enzymes can be found in all life-forms.
|
Detailed explanation-1: -Enzymes are proteins that help increase the rate of chemical reactions inside cells. These proteins are composed of many simpler molecules called amino acids. Which of the following suggests that the shape of an enzyme determines the enzyme’s function? Enzymes are specific to a substrate.
Detailed explanation-2: -A fundamental task of proteins is to act as enzymes-catalysts that increase the rate of virtually all the chemical reactions within cells. Although RNAs are capable of catalyzing some reactions, most biological reactions are catalyzed by proteins.
Detailed explanation-3: -Enzymes are proteins that help speed up chemical reactions in our bodies. Enzymes are essential for digestion, liver function and much more. Too much or too little of a certain enzyme can cause health problems.
Detailed explanation-4: -Which of the following statements best describes enzyme function? Enzymes increase the rate of chemical reactions by lowering activation energy barriers.
Detailed explanation-5: -Each reaction step is facilitated, or catalyzed, by a protein called an enzyme. Enzymes are important for catalyzing all types of biological reactions-those that require energy as well as those that release energy. Figure 4.3 Catabolic pathways are those that generate energy by breaking down larger molecules.