#Question id: 10196
#Unit 6. System Physiology – Plant
Why are light compensation points lower for shade plants?
#Question id: 10197
#Unit 6. System Physiology – Plant
Light compensation point found at which;
#Question id: 10198
#Unit 6. System Physiology – Plant
The response of photosynthesis to light in a C3 plant some given effect shows in dark as well as in the light, which of the following effect is not true?
#Question id: 10199
#Unit 6. System Physiology – Plant
Some differences is found between plants that normally
grow in full sunlight and those that grow in the shade given below;
| COLUMN A | COLUMN B |
| A- SHADED PLANTS | i- Light compensation points range from 10 to 20 µmol m–2 s–1 |
| B- SUN PLANTS | ii- low light Compensation point and have lower maximum photosynthetic rates |
| iii- Light compensation points range from 1 to 5 µmol m–2 s–1 | |
| iv- the respiration rates in plants are very low | |
| v- Plants CO2 assimilation take place very late |
Match the correct combination of column A with the column B;
#Question id: 10200
#Unit 6. System Physiology – Plant
Following are some facts regarding C3 and C4 Plants
a.) In C4 plants the reduction is caused by the additional energy requirements such as 1 ATP per CO2 from C3 plants
b.) C4 leaves are exposed to low O2 concentrations, the quantum yields for CO2 fixation remain constant while C3 leaves are exposed to low O2 concentrations quantum yield increases
c.) C3 leaves are exposed to low O2 concentrations, photorespiration is maximized
d.) Plant with the C4 metabolism need more rubisco than C3 plants to achieve a given rate of Photosynthesis
Which of the following combination would be correct?
#Question id: 10201
#Unit 6. System Physiology – Plant
Chloroplasts orientation in Algae is controlled by