Law of thermodynamics which states that energy can neither be created nor be destroyed is ___________
Anonymous Quiz
17%
Zero-order kinetics
74%
First law of thermodynamics
4%
Third law of thermodynamicsc
6%
The second law of thermodynamic
Gibb’s free energy is the portion of the total energy which is available for useful work.
Anonymous Quiz
91%
true
9%
false
Which of the following equation shows the relationship between free energy change (∆G) and the change in entropy (∆S), under constant temperature and pressure?
Anonymous Quiz
13%
∆G = T∆H – ∆S
1%
∆G = T∆H/∆S
2%
∆G = ∆H/T∆S
83%
∆G = ∆H – T∆S
What is the value of ∆G, when a system is in equilibrium?
Anonymous Quiz
90%
∆G = 0
7%
∆G = ∆G֯
2%
∆G = -1
2%
∆G = 1
🤨1
Which of the following equation gives the relationship between ∆G֯ and Keq?
Anonymous Quiz
67%
∆G֯ = -RT ln Keq
20%
∆G = -RT ln Keq
7%
∆G = ∆G֯ (-RT Keq)
6%
∆G֯ = ln Keq
If enthalpy change for a reaction is zero, then ∆G° equals to _____________
Anonymous Quiz
65%
-T∆S°
13%
lnkeq
14%
-∆H°
8%
T∆S°
❤2
∆G° is defined as the ____________
Anonymous Quiz
15%
Residual energy present in the reactants at equilibrium
21%
Difference in the residual energy of reactants and products at equilibrium
4%
Residual energy present in the products at equilibrium
60%
Energy required in converting one mole of reactants to one mole of products
The study of energy relationships and conversions in biological systems is called as ____________
Anonymous Quiz
3%
Biophysics
0%
Microbiology
95%
Bioenergetics
3%
Biotechnology
What does first law of thermodynamics state?
Anonymous Quiz
83%
Energy can neither be destroyed nor created
9%
Input of heat energy increases the rate of movement of atoms and molecules
4%
All living organisms are composed of cells
4%
Energy cannot be 100 percent efficiently transformed from one type to another
Which of the following statements is true?
Anonymous Quiz
19%
The reaction tends to go in the forward direction if ∆G is large and positive
8%
The system is at equilibrium if ∆G = 1
20%
The reaction tends to move in the backward direction if ∆G is large and negative
54%
The reaction tends to move in the forward direction if ∆G is large and negaitive
Which of the following is a chemical link between catabolism and anabolism?
Anonymous Quiz
3%
AMP
39%
ATP
5%
ADP
54%
All of these
C6H12O6 + 6O2——> 6CO2 + 6H20 + ENERGY represents:
Anonymous Quiz
51%
Aerobic respiration
18%
Anaerobic respiration
10%
Respiration
21%
Photosynthesis
Breaking of the terminal phosphate of ATP releases about _____ Kcal of energy.
Anonymous Quiz
8%
6.1
55%
7.3
31%
7.1
6%
6.3
From one pyruvate passing through Kreb’s cycle, how many NADH are formed?
Anonymous Quiz
16%
1
39%
2
38%
3
7%
4
The final acceptor of electrons in the respiratory chain is
Anonymous Quiz
22%
NADH
22%
Cytochrome a3
38%
Oxygen
17%
Water
What is the name of the molecule which donates its electrons?
Anonymous Quiz
33%
Reducing agent
13%
Oxidant
27%
Standard reduction potential
27%
Oxidative agent
What is the standard free energy change of ATP?
Anonymous Quiz
12%
Small and negative
27%
Large and positive
14%
Small and positive
46%
Large and negative
👍1
A compound which is found in all living cells and play a key role in energy transformations is
Anonymous Quiz
14%
Adenosine Diphosphate (ADP)
0%
granum
2%
chlorophyll
84%
Adenosine triphosphate (ATP)
Which enzymes can catalyze the conversion of AMP to ADP
Anonymous Quiz
8%
Creatine kinase
18%
Nucleoside diphosphate kinase
60%
Adenylate kinase
14%
Polyphosphate kinase
Which gives the maximum (negative) free energy of hydrolysis?
Anonymous Quiz
46%
ATP ADP+ Pi
14%
1, 3-bisphophoglycerate
32%
Phosphoenolpyruvat
8%
Phosphocreatine