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Q. No.
Respiration is regarded as a __________ process.
1. anabolic and exergonic
2. anabolic and endergonic
3. catabolic and endergonic
4. catabolic and exergonic
Subtopic:  Glycolysis | Aerobic Respiration |
 64%
Level 2: 60%+
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The three sequential steps of aerobic respiration are:
1. Glycolysis – Krebs cycle – Oxidative phosphorylation
2. Krebs cycle – Glycolysis – Oxidative phosphorylation
3. Glycolysis – Oxidative phosphorylation – Krebs cycle
4. Oxidative phosphorylation – Glycolysis – Krebs cycle
Subtopic:  Glycolysis | Aerobic Respiration | Kreb's Cycle | ETS |
 79%
Level 2: 60%+
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Where in the cell does glycolysis occur?
1. Cytoplasm
2. Mitochondrial matrix
3. Inner mitochondrial membrane
4. Chloroplast stroma
Subtopic:  Glycolysis |
 93%
Level 1: 80%+
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How many molecules of ATP are directly produced in glycolysis per glucose molecule?
1. 2
2. 4
3. 6
4. 8
Subtopic:  Glycolysis |
 50%
Level 3: 35%-60%
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In aerobic respiration, how many NADH + H⁺ molecules are produced during complete oxidation of one glucose molecule?
1. 6
2. 8
3. 10
4. 12
Subtopic:  Glycolysis | Aerobic Respiration |
Level 3: 35%-60%
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Fermentation differs from aerobic respiration in that it:
1. Does not require oxygen and produces less energy
2. Requires oxygen and produces more energy
3. Requires mitochondria for ATP synthesis
4. Produces more ATP than oxidative phosphorylation
Subtopic:  Glycolysis | Fermentation |
 90%
Level 1: 80%+
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The NCERT states that the process of breathing is connected to the release of energy from food. What is the fundamental reason for this connection?
1. Breathing produces oxygen, which is the primary respiratory substrate for oxidation.
2. The oxidation of food molecules (respiration) requires oxygen, which is supplied by breathing.
3. Breathing releases the energy stored in ATP, which is then used to break down food.
4. Breathing and eating are both involuntary processes essential for life.
Subtopic:  Glycolysis | Aerobic Respiration |
 74%
Level 2: 60%+
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In glycolysis, the breakdown of one molecule of glucose (a 6-carbon compound) through a sequence of enzyme-mediated reactions finally produces:
1. Two molecules of pyruvate (3C each), with net gain of 2 ATP and 2 NADH
2. Two molecules of acetyl COA each), with net gain of 4 ATP and 2 NADH
3. One molecule of pyruvate (3C), with net gain of 2 ATP and 2 NADH
4. Two molecules of ethanol (2C each), with net gain of 2 ATP and 2 NADH
Subtopic:  Glycolysis |
 83%
Level 1: 80%+
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The conversion of glucose to glucose-6-phosphate in glycolysis is catalysed by:
1. Phosphofructokinase
2. Hexokinase
3. Enolase
4. Aldolase
Subtopic:  Glycolysis |
 90%
Level 1: 80%+
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Which one of the following steps of glycolysis involves substratelevel phosphorylation?
1. Conversion of glucose to glucose-6-phosphate
2. Conversion of fructose-6-phosphate to fructose-1,6bisphosphate
3. Conversion of glucose-6-phosphate to fructose-6-phosphate
4. Conversion of 1,3-bisphosphoglycerate to 3-phosphoglycerate

 
Subtopic:  Glycolysis |
 86%
Level 1: 80%+
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