1. Which of the following is/are a reduced compound/s NAD+ NADH FAD FADH2 Both a
ID: 482151 • Letter: 1
Question
1. Which of the following is/are a reduced compound/s NAD+ NADH FAD FADH2 Both a and c Both b and d Both b an c
2. Which of these second messengers signals the release of Ca+ ions from the endoplasmic reticulum? Ca+ IP3 PIP DAG cAMP
3. In exergonic chemical reactions: the reactants have more energy than the products energy levels decrease and then increase during the reaction the reactants have lesser energy than the products the reactants and products possess equal amounts of energy
4. Which of these functions can be performed by the release of energy from the conversion of ATP to ADP Movement of muscles Transfer of signals Enzymatic reactions All of the above
5.
A "high-energy" bond in an ATP molecule is located between
adenine and ribose
two phosphate groups
ribose and the first phosphate group
adenine and the first phosphate group
adenine and ribose
two phosphate groups
ribose and the first phosphate group
adenine and the first phosphate group
Explanation / Answer
1. Which of the following is/are a reduced compound/s NAD+ NADH FAD FADH2 Both a and c Both b and d Both b an c
Answer:
The reduction equations are: NAD+ + H+ + 2e ---> NADH
so NADH is reduced form
the other reduction equations are:
FAD + 2H+ + 2e --> FADH2
So FADH2 is the reduced form
2. Which of these second messengers signals the release of Ca+ ions from the endoplasmic reticulum? Ca+ IP3 PIP DAG cAMP
Answer: inositol-1,4,5-trisphosphate (IP3) : it signals the release of Ca+2
3. In exergonic chemical reactions: the reactants have more energy than the products energy levels decrease and then increase during the reaction the reactants have lesser energy than the products the reactants and products possess equal amounts of energy
Answer: In exergonic reactions heat is released. the energy of reactants is more than energy of products.
So the energy first increases to a maximum and then decrease to the product level
4. Which of these functions can be performed by the release of energy from the conversion of ATP to ADP Movement of muscles Transfer of signals Enzymatic reactions All of the above
Answer: Movement of muscles require energy (ATP is converted to ADP)
Transfer of signals also require energy
enzymatic reactions also require an activation energy
5.
A "high-energy" bond in an ATP molecule is located between
Answer: the high energy bond in ATP : phosphoanhydride bonds
It is present between two phosphate groups
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.