The primary acceptor in plants is:
1. RuBP in mesophyll cells
2. RuBP in bundle sheath cells
3. PEP in mesophyll cells
4. PEP in bundle sheath cells
In pathway, the 4-carbon compound transported to bundle sheath cells most commonly is:
1. | Glutamic acid | 2. | Malic acid |
3. | Oxaloacetic acid | 4. | Fumaric acid |
Identify the incorrectly matched pair:
1. | PS I | P700 is reaction center |
2. | RuBP | 5 carbon compound |
3. | PS II | P680 is reaction center |
4. | C3 plants | Kranz anatomy |
The and photosynthesis pathways are so called because the initial carbon fixation product in them are respectively:
1. | pyruvate; malate |
2. | malate; pyruvate |
3. | 3-phosphoglycerate; oxaloacetic acid |
4. | glyceraldehyde 3-phosphate; phospho-enol-pyruvate (PEP) |
A and a plant were fed with carbon dioxide radioactively labeled with an isotope of carbon. In which of the following molecules, respectively in and plants, would radioactivity first appear as photosynthesis progresses?
1. | PGA and OAA | 2. | Water and PGAL |
3. | PGAL and Malic acid | 4. | PEP and RuBP |
The following diagram shows the photosynthetic carbon cycle. A and B can respectively be:
1. Pyruvate; malate or aspartate
2. Phoshoglycerate; fumarate or aspartate
3. Phosphoenol pyruvate; malate or aspartate
4. Phosphoenol pyruvate; fumarate or aspartate
Identify the incorrect statement regarding the comparison of plants to the plants:
1. They tolerate higher temperatures
2. They show a response to high light intensities
3. They have a lower productivity of biomass
4. They lack photorespiration
1. | Maize | 2. | Sorghum |
3. | Sugarcane | 4. | Wheat |
I: | The C4 acid OAA is formed in the mesophyll cells. |
II: | Malic acid or aspartic acid are transported to the bundle sheath cells. |
III: | C4 acids are broken down to release carbon dioxide and a 3 carbon molecule in mesophyll cells. |
IV: | The 3 carbon molecule is transported back to the bundle sheath cell where it is converted to PEP again. |
The pathway shown in the figure will be seen in:
1. plants
2. CAM plants
3. plants
4. All photosynthetic plants