238152
In Photosynthesis $\mathrm{NADPH}_{2}$ is formed but in respiration if forms during
1 HMP
2 ETS
3 Krebs cycle
4 None of these
Explanation:
A $\mathrm{NADPH}_{2}$ is formed during light reaction of photosynthesis \& also formed during hexose monophosphate shunt of glucose oxidation. The HMP consists of 2 irreversible oxidative reactions and a series of reversible sugar-phosphate conversion. No ATP is consumed or produced directly.
BCECE-2008
Photosynthesis in higher plants
238154
How many ATP molecules are obtained from fermentation of 1 molecule of glucose?
1 2
2 4
3 3
4 5
Explanation:
A During alcoholic fermentation of glucose molecule, it is oxidized to pyruvic acid by glycolysis. The pyruvic acid is decarboxylated to form acetaldehyde and $\mathrm{CO}_{2}$. The acetaldehyde is then reduced to ethanol. The process of glycolysis results in the net production of 2 molecules of ATP. Fermentation is a biochemical process that gets energy from carbohydrates and does not require oxygen. $\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} \rightarrow 2 \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+2 \mathrm{CO}_{2}+2 \mathrm{ATP}$ (energy)
WB JEE-2009 / J and K CET-2011
Photosynthesis in higher plants
238156
Energy equivalent of a NADH in which of the following numbers of ATP molecules?
1 2
2 3
3 38
4 36
Explanation:
B Each NADH molecule the oretically yield 3 ATP molecules during chemiosmosis. In some tissues, NADH requires more energy to cross the mitochondrial membrane \& some of its potential is lost NADH(Nicotinamide adenine dinucleotide) is a coenzyme central to metabolism. It consist of two nucleotide joined through their phosphate group.
J and K CET-2012 / AFMC-2004 / Karnataka CET-2000
Photosynthesis in higher plants
238157
The role of the oxidative pentose phosphate pathway is to generate reducing potential in the form of
1 NADPH only
2 NADH only
3 FADH only
4 FADH and NADH
Explanation:
A The role of the oxidative pentose phosphate pathway is to generate reducing potential in the form of NADPH only. Pentose phosphate pathway is an oxidative phosphate pathway of cellular respiration in which glucose 6 phosphate acts as the substrate. After its complete oxidation through HMP, $12 \mathrm{NADPH}^{+}, \mathrm{H}^{+}$ $\& 6 \mathrm{CO}_{2}$ are formed. Pentose phosphate pathway also known as hexose monosphosphate shunt (HMP). In this pathway, no ATP is directly produced from oxidation of glucose-6-phosphate.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Photosynthesis in higher plants
238152
In Photosynthesis $\mathrm{NADPH}_{2}$ is formed but in respiration if forms during
1 HMP
2 ETS
3 Krebs cycle
4 None of these
Explanation:
A $\mathrm{NADPH}_{2}$ is formed during light reaction of photosynthesis \& also formed during hexose monophosphate shunt of glucose oxidation. The HMP consists of 2 irreversible oxidative reactions and a series of reversible sugar-phosphate conversion. No ATP is consumed or produced directly.
BCECE-2008
Photosynthesis in higher plants
238154
How many ATP molecules are obtained from fermentation of 1 molecule of glucose?
1 2
2 4
3 3
4 5
Explanation:
A During alcoholic fermentation of glucose molecule, it is oxidized to pyruvic acid by glycolysis. The pyruvic acid is decarboxylated to form acetaldehyde and $\mathrm{CO}_{2}$. The acetaldehyde is then reduced to ethanol. The process of glycolysis results in the net production of 2 molecules of ATP. Fermentation is a biochemical process that gets energy from carbohydrates and does not require oxygen. $\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} \rightarrow 2 \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+2 \mathrm{CO}_{2}+2 \mathrm{ATP}$ (energy)
WB JEE-2009 / J and K CET-2011
Photosynthesis in higher plants
238156
Energy equivalent of a NADH in which of the following numbers of ATP molecules?
1 2
2 3
3 38
4 36
Explanation:
B Each NADH molecule the oretically yield 3 ATP molecules during chemiosmosis. In some tissues, NADH requires more energy to cross the mitochondrial membrane \& some of its potential is lost NADH(Nicotinamide adenine dinucleotide) is a coenzyme central to metabolism. It consist of two nucleotide joined through their phosphate group.
J and K CET-2012 / AFMC-2004 / Karnataka CET-2000
Photosynthesis in higher plants
238157
The role of the oxidative pentose phosphate pathway is to generate reducing potential in the form of
1 NADPH only
2 NADH only
3 FADH only
4 FADH and NADH
Explanation:
A The role of the oxidative pentose phosphate pathway is to generate reducing potential in the form of NADPH only. Pentose phosphate pathway is an oxidative phosphate pathway of cellular respiration in which glucose 6 phosphate acts as the substrate. After its complete oxidation through HMP, $12 \mathrm{NADPH}^{+}, \mathrm{H}^{+}$ $\& 6 \mathrm{CO}_{2}$ are formed. Pentose phosphate pathway also known as hexose monosphosphate shunt (HMP). In this pathway, no ATP is directly produced from oxidation of glucose-6-phosphate.
238152
In Photosynthesis $\mathrm{NADPH}_{2}$ is formed but in respiration if forms during
1 HMP
2 ETS
3 Krebs cycle
4 None of these
Explanation:
A $\mathrm{NADPH}_{2}$ is formed during light reaction of photosynthesis \& also formed during hexose monophosphate shunt of glucose oxidation. The HMP consists of 2 irreversible oxidative reactions and a series of reversible sugar-phosphate conversion. No ATP is consumed or produced directly.
BCECE-2008
Photosynthesis in higher plants
238154
How many ATP molecules are obtained from fermentation of 1 molecule of glucose?
1 2
2 4
3 3
4 5
Explanation:
A During alcoholic fermentation of glucose molecule, it is oxidized to pyruvic acid by glycolysis. The pyruvic acid is decarboxylated to form acetaldehyde and $\mathrm{CO}_{2}$. The acetaldehyde is then reduced to ethanol. The process of glycolysis results in the net production of 2 molecules of ATP. Fermentation is a biochemical process that gets energy from carbohydrates and does not require oxygen. $\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} \rightarrow 2 \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+2 \mathrm{CO}_{2}+2 \mathrm{ATP}$ (energy)
WB JEE-2009 / J and K CET-2011
Photosynthesis in higher plants
238156
Energy equivalent of a NADH in which of the following numbers of ATP molecules?
1 2
2 3
3 38
4 36
Explanation:
B Each NADH molecule the oretically yield 3 ATP molecules during chemiosmosis. In some tissues, NADH requires more energy to cross the mitochondrial membrane \& some of its potential is lost NADH(Nicotinamide adenine dinucleotide) is a coenzyme central to metabolism. It consist of two nucleotide joined through their phosphate group.
J and K CET-2012 / AFMC-2004 / Karnataka CET-2000
Photosynthesis in higher plants
238157
The role of the oxidative pentose phosphate pathway is to generate reducing potential in the form of
1 NADPH only
2 NADH only
3 FADH only
4 FADH and NADH
Explanation:
A The role of the oxidative pentose phosphate pathway is to generate reducing potential in the form of NADPH only. Pentose phosphate pathway is an oxidative phosphate pathway of cellular respiration in which glucose 6 phosphate acts as the substrate. After its complete oxidation through HMP, $12 \mathrm{NADPH}^{+}, \mathrm{H}^{+}$ $\& 6 \mathrm{CO}_{2}$ are formed. Pentose phosphate pathway also known as hexose monosphosphate shunt (HMP). In this pathway, no ATP is directly produced from oxidation of glucose-6-phosphate.
238152
In Photosynthesis $\mathrm{NADPH}_{2}$ is formed but in respiration if forms during
1 HMP
2 ETS
3 Krebs cycle
4 None of these
Explanation:
A $\mathrm{NADPH}_{2}$ is formed during light reaction of photosynthesis \& also formed during hexose monophosphate shunt of glucose oxidation. The HMP consists of 2 irreversible oxidative reactions and a series of reversible sugar-phosphate conversion. No ATP is consumed or produced directly.
BCECE-2008
Photosynthesis in higher plants
238154
How many ATP molecules are obtained from fermentation of 1 molecule of glucose?
1 2
2 4
3 3
4 5
Explanation:
A During alcoholic fermentation of glucose molecule, it is oxidized to pyruvic acid by glycolysis. The pyruvic acid is decarboxylated to form acetaldehyde and $\mathrm{CO}_{2}$. The acetaldehyde is then reduced to ethanol. The process of glycolysis results in the net production of 2 molecules of ATP. Fermentation is a biochemical process that gets energy from carbohydrates and does not require oxygen. $\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} \rightarrow 2 \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+2 \mathrm{CO}_{2}+2 \mathrm{ATP}$ (energy)
WB JEE-2009 / J and K CET-2011
Photosynthesis in higher plants
238156
Energy equivalent of a NADH in which of the following numbers of ATP molecules?
1 2
2 3
3 38
4 36
Explanation:
B Each NADH molecule the oretically yield 3 ATP molecules during chemiosmosis. In some tissues, NADH requires more energy to cross the mitochondrial membrane \& some of its potential is lost NADH(Nicotinamide adenine dinucleotide) is a coenzyme central to metabolism. It consist of two nucleotide joined through their phosphate group.
J and K CET-2012 / AFMC-2004 / Karnataka CET-2000
Photosynthesis in higher plants
238157
The role of the oxidative pentose phosphate pathway is to generate reducing potential in the form of
1 NADPH only
2 NADH only
3 FADH only
4 FADH and NADH
Explanation:
A The role of the oxidative pentose phosphate pathway is to generate reducing potential in the form of NADPH only. Pentose phosphate pathway is an oxidative phosphate pathway of cellular respiration in which glucose 6 phosphate acts as the substrate. After its complete oxidation through HMP, $12 \mathrm{NADPH}^{+}, \mathrm{H}^{+}$ $\& 6 \mathrm{CO}_{2}$ are formed. Pentose phosphate pathway also known as hexose monosphosphate shunt (HMP). In this pathway, no ATP is directly produced from oxidation of glucose-6-phosphate.