Plants can get along without respiratory organs because of 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 the plant. |
Sucrose is converted into glucose and fructose by the enzyme:
1. Maltase
2. Zymase
3. Isomerase
4. Invertase
The co-factor required for the activity of pyruvate dehydrogenase is:
1. Zinc
2. Magnesium
3. Manganese
4. Copper
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
For each ATP produced, how many H passes through F0 from the intermembrane space to the matrix down the electrochemical proton gradient?
1. 1
2. 2
3. 3
4. 4
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
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
When proteins are used as respiratory substrates, the respiratory quotient would be about:
1. 1.2
2. 1.0
3. 0.9
4. 0.7
The mitochondrial electron transport chain is located in:
1. Outer membrane
2. Inner membrane
3. Inter membrane space
4. Matrix
The primary role of oxygen in cellular respiration is to:
1. | yield energy in the form of ATP as it is passed down the respiratory chain. |
2. | act as an acceptor for electrons and hydrogen, forming water |
3. | combine with carbon, forming CO2. |
4. | combine with lactate, forming pyruvate. |