Plants can get along without respiratory organs because of all the following except:
1. Each plant part takes care of its own gas exchange needs
2. Plants do not present great demands for gas exchange.
3. Gas diffusion in plants occurs easily over long distances in plants
4. Each living cell in a plant is located quite close to the surface of plant

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Sucrose is converted into glucose and fructose by the enzyme:

1. Maltase
2. Zymase
3. Isomerase
4. Invertase

 

Concept Questions :-

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The co-factor required for the activity of pyruvate dehydrogenase is:
1. Zinc
2. Magnesium
3. Manganese
4. Copper

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In Kreb's cycle, a molecule of GTP is produced during the conversion of:
1. Citrate into Ketoglutarate
2. Succinyl-CoA into succinate
3. Succinate into malate
4. Malate into oxaloacetate

 

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In the mitochondrial electron transport system the term Complex III refers to:
1. NADH dehydrogenase
2. Cytochrome c
3. FADH2
4. Cytochrome bc1 complex

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For each ATP produced, how many H pass through F0 from the intermembrane space to the matrix down the electrochemical proton gradient?

1. 1
2. 2
3. 3
4. 4

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What is the net gain of number of ATP molecules produced during aerobic respiration of one molecule of glucose?

1. 30
2. 36
3. 38
4. 40

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If fatty acids were to be respired, they would first be degraded to:
1. Glucose-6 phosphate
2. Pyruvate
3. Acetyl-CoA
4. Alpha ketoglutarate

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In the absence of oxygen, the primary purpose of fermentation is to:
1. produce amino acids for protein synthesis
2. generate a proton gradient for ATP synthesis
3. oxidize glucose to generate reduce electron carriers
4. regenerate NAD+ from NADH allowing glycolysis to continue

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During glycolysis, when glucose is catabolized to pyruvate, most of the energy of glucose is 
1. transferred to ADP, forming ATP.
2. transferred directly to ATP.
3. retained in the pyruvate.
4. stored in the NADH produced.

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